6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Fedor Pchelkin pchelkin@ispras.ru

[ Upstream commit ccbe77f7e45dfb4420f7f531b650c00c6e9c7507 ]

Syzkaller reports a memory leak:

BUG: memory leak unreferenced object 0xffff88810b279e00 (size 96): comm "syz-executor399", pid 3631, jiffies 4294964921 (age 23.870s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 9e 27 0b 81 88 ff ff ..........'..... 08 9e 27 0b 81 88 ff ff 00 00 00 00 00 00 00 00 ..'............. backtrace: [<ffffffff814cfc90>] kmalloc_trace+0x20/0x90 mm/slab_common.c:1046 [<ffffffff81bb75ca>] kmalloc include/linux/slab.h:576 [inline] [<ffffffff81bb75ca>] autofs_wait+0x3fa/0x9a0 fs/autofs/waitq.c:378 [<ffffffff81bb88a7>] autofs_do_expire_multi+0xa7/0x3e0 fs/autofs/expire.c:593 [<ffffffff81bb8c33>] autofs_expire_multi+0x53/0x80 fs/autofs/expire.c:619 [<ffffffff81bb6972>] autofs_root_ioctl_unlocked+0x322/0x3b0 fs/autofs/root.c:897 [<ffffffff81bb6a95>] autofs_root_ioctl+0x25/0x30 fs/autofs/root.c:910 [<ffffffff81602a9c>] vfs_ioctl fs/ioctl.c:51 [inline] [<ffffffff81602a9c>] __do_sys_ioctl fs/ioctl.c:870 [inline] [<ffffffff81602a9c>] __se_sys_ioctl fs/ioctl.c:856 [inline] [<ffffffff81602a9c>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:856 [<ffffffff84608225>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84608225>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

autofs_wait_queue structs should be freed if their wait_ctr becomes zero. Otherwise they will be lost.

In this case an AUTOFS_IOC_EXPIRE_MULTI ioctl is done, then a new waitqueue struct is allocated in autofs_wait(), its initial wait_ctr equals 2. After that wait_event_killable() is interrupted (it returns -ERESTARTSYS), so that 'wq->name.name == NULL' condition may be not satisfied. Actually, this condition can be satisfied when autofs_wait_release() or autofs_catatonic_mode() is called and, what is also important, wait_ctr is decremented in those places. Upon the exit of autofs_wait(), wait_ctr is decremented to 1. Then the unmounting process begins: kill_sb calls autofs_catatonic_mode(), which should have freed the waitqueues, but it only decrements its usage counter to zero which is not a correct behaviour.

edit:imk This description is of course not correct. The umount performed as a result of an expire is a umount of a mount that has been automounted, it's not the autofs mount itself. They happen independently, usually after everything mounted within the autofs file system has been expired away. If everything hasn't been expired away the automount daemon can still exit leaving mounts in place. But expires done in both cases will result in a notification that calls autofs_wait_release() with a result status. The problem case is the summary execution of of the automount daemon. In this case any waiting processes won't be woken up until either they are terminated or the mount is umounted. end edit: imk

So in catatonic mode we should free waitqueues which counter becomes zero.

edit: imk Initially I was concerned that the calling of autofs_wait_release() and autofs_catatonic_mode() was not mutually exclusive but that can't be the case (obviously) because the queue entry (or entries) is removed from the list when either of these two functions are called. Consequently the wait entry will be freed by only one of these functions or by the woken process in autofs_wait() depending on the order of the calls. end edit: imk

Reported-by: syzbot+5e53f70e69ff0c0a1c0c@syzkaller.appspotmail.com Suggested-by: Takeshi Misawa jeliantsurux@gmail.com Signed-off-by: Fedor Pchelkin pchelkin@ispras.ru Signed-off-by: Alexey Khoroshilov khoroshilov@ispras.ru Signed-off-by: Ian Kent raven@themaw.net Cc: Matthew Wilcox willy@infradead.org Cc: Andrei Vagin avagin@gmail.com Cc: autofs@vger.kernel.org Cc: linux-kernel@vger.kernel.org Message-Id: 169112719161.7590.6700123246297365841.stgit@donald.themaw.net Signed-off-by: Christian Brauner brauner@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/autofs/waitq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/autofs/waitq.c b/fs/autofs/waitq.c index 54c1f8b8b0757..efdc76732faed 100644 --- a/fs/autofs/waitq.c +++ b/fs/autofs/waitq.c @@ -32,8 +32,9 @@ void autofs_catatonic_mode(struct autofs_sb_info *sbi) wq->status = -ENOENT; /* Magic is gone - report failure */ kfree(wq->name.name - wq->offset); wq->name.name = NULL; - wq->wait_ctr--; wake_up_interruptible(&wq->queue); + if (!--wq->wait_ctr) + kfree(wq); wq = nwq; } fput(sbi->pipe); /* Close the pipe */

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Will Shiu Will.Shiu@mediatek.com

[ Upstream commit 74f6f5912693ce454384eaeec48705646a21c74f ]

As following backtrace, the struct file_lock request , in posix_lock_inode is free before ftrace function using. Replace the ftrace function ahead free flow could fix the use-after-free issue.

[name:report&]=============================================== BUG:KASAN: use-after-free in trace_event_raw_event_filelock_lock+0x80/0x12c [name:report&]Read at addr f6ffff8025622620 by task NativeThread/16753 [name:report_hw_tags&]Pointer tag: [f6], memory tag: [fe] [name:report&] BT: Hardware name: MT6897 (DT) Call trace: dump_backtrace+0xf8/0x148 show_stack+0x18/0x24 dump_stack_lvl+0x60/0x7c print_report+0x2c8/0xa08 kasan_report+0xb0/0x120 __do_kernel_fault+0xc8/0x248 do_bad_area+0x30/0xdc do_tag_check_fault+0x1c/0x30 do_mem_abort+0x58/0xbc el1_abort+0x3c/0x5c el1h_64_sync_handler+0x54/0x90 el1h_64_sync+0x68/0x6c trace_event_raw_event_filelock_lock+0x80/0x12c posix_lock_inode+0xd0c/0xd60 do_lock_file_wait+0xb8/0x190 fcntl_setlk+0x2d8/0x440 ... [name:report&] [name:report&]Allocated by task 16752: ... slab_post_alloc_hook+0x74/0x340 kmem_cache_alloc+0x1b0/0x2f0 posix_lock_inode+0xb0/0xd60 ... [name:report&] [name:report&]Freed by task 16752: ... kmem_cache_free+0x274/0x5b0 locks_dispose_list+0x3c/0x148 posix_lock_inode+0xc40/0xd60 do_lock_file_wait+0xb8/0x190 fcntl_setlk+0x2d8/0x440 do_fcntl+0x150/0xc18 ...

Signed-off-by: Will Shiu Will.Shiu@mediatek.com Signed-off-by: Jeff Layton jlayton@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/locks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/locks.c b/fs/locks.c index 240b9309ed6d5..1047ab2b15e96 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -1300,6 +1300,7 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request, out: spin_unlock(&ctx->flc_lock); percpu_up_read(&file_rwsem); + trace_posix_lock_inode(inode, request, error); /* * Free any unused locks. */ @@ -1308,7 +1309,6 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request, if (new_fl2) locks_free_lock(new_fl2); locks_dispose_list(&dispose); - trace_posix_lock_inode(inode, request, error);

return error; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Wander Lairson Costa wander@redhat.com

[ Upstream commit d243b34459cea30cfe5f3a9b2feb44e7daff9938 ]

Under PREEMPT_RT, __put_task_struct() indirectly acquires sleeping locks. Therefore, it can't be called from an non-preemptible context.

One practical example is splat inside inactive_task_timer(), which is called in a interrupt context:

CPU: 1 PID: 2848 Comm: life Kdump: loaded Tainted: G W --------- Hardware name: HP ProLiant DL388p Gen8, BIOS P70 07/15/2012 Call Trace: dump_stack_lvl+0x57/0x7d mark_lock_irq.cold+0x33/0xba mark_lock+0x1e7/0x400 mark_usage+0x11d/0x140 __lock_acquire+0x30d/0x930 lock_acquire.part.0+0x9c/0x210 rt_spin_lock+0x27/0xe0 refill_obj_stock+0x3d/0x3a0 kmem_cache_free+0x357/0x560 inactive_task_timer+0x1ad/0x340 __run_hrtimer+0x8a/0x1a0 __hrtimer_run_queues+0x91/0x130 hrtimer_interrupt+0x10f/0x220 __sysvec_apic_timer_interrupt+0x7b/0xd0 sysvec_apic_timer_interrupt+0x4f/0xd0 asm_sysvec_apic_timer_interrupt+0x12/0x20 RIP: 0033:0x7fff196bf6f5

Instead of calling __put_task_struct() directly, we defer it using call_rcu(). A more natural approach would use a workqueue, but since in PREEMPT_RT, we can't allocate dynamic memory from atomic context, the code would become more complex because we would need to put the work_struct instance in the task_struct and initialize it when we allocate a new task_struct.

The issue is reproducible with stress-ng:

while true; do stress-ng --sched deadline --sched-period 1000000000 \ --sched-runtime 800000000 --sched-deadline \ 1000000000 --mmapfork 23 -t 20 done

Reported-by: Hu Chunyu chuhu@redhat.com Suggested-by: Oleg Nesterov oleg@redhat.com Suggested-by: Valentin Schneider vschneid@redhat.com Suggested-by: Peter Zijlstra peterz@infradead.org Signed-off-by: Wander Lairson Costa wander@redhat.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Link: https://lore.kernel.org/r/20230614122323.37957-2-wander@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/sched/task.h | 28 +++++++++++++++++++++++++++- kernel/fork.c | 8 ++++++++ 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 357e0068497c1..7291fb6399d2a 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -112,10 +112,36 @@ static inline struct task_struct *get_task_struct(struct task_struct *t) }

extern void __put_task_struct(struct task_struct *t); +extern void __put_task_struct_rcu_cb(struct rcu_head *rhp);

static inline void put_task_struct(struct task_struct *t) { - if (refcount_dec_and_test(&t->usage)) + if (!refcount_dec_and_test(&t->usage)) + return; + + /* + * under PREEMPT_RT, we can't call put_task_struct + * in atomic context because it will indirectly + * acquire sleeping locks. + * + * call_rcu() will schedule delayed_put_task_struct_rcu() + * to be called in process context. + * + * __put_task_struct() is called when + * refcount_dec_and_test(&t->usage) succeeds. + * + * This means that it can't "conflict" with + * put_task_struct_rcu_user() which abuses ->rcu the same + * way; rcu_users has a reference so task->usage can't be + * zero after rcu_users 1 -> 0 transition. + * + * delayed_free_task() also uses ->rcu, but it is only called + * when it fails to fork a process. Therefore, there is no + * way it can conflict with put_task_struct(). + */ + if (IS_ENABLED(CONFIG_PREEMPT_RT) && !preemptible()) + call_rcu(&t->rcu, __put_task_struct_rcu_cb); + else __put_task_struct(t); }

diff --git a/kernel/fork.c b/kernel/fork.c index 41950ff90aa34..85617928041cf 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -852,6 +852,14 @@ void __put_task_struct(struct task_struct *tsk) } EXPORT_SYMBOL_GPL(__put_task_struct);

+void __put_task_struct_rcu_cb(struct rcu_head *rhp) +{ + struct task_struct *task = container_of(rhp, struct task_struct, rcu); + + __put_task_struct(task); +} +EXPORT_SYMBOL_GPL(__put_task_struct_rcu_cb); + void __init __weak arch_task_cache_init(void) { }

/*

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Paul E. McKenney paulmck@kernel.org

[ Upstream commit 013608cd0812bdb21fc26d39ed8fdd2fc76e8b9b ]

Kernels built with CONFIG_KASAN=y quarantine newly freed memory in order to better detect use-after-free errors. However, this can exhaust memory more quickly in allocator-heavy tests, which can result in spurious scftorture failure. This commit therefore forgives memory-allocation failure in kernels built with CONFIG_KASAN=y, but continues counting the errors for use in detailed test-result analyses.

Signed-off-by: Paul E. McKenney paulmck@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/scftorture.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kernel/scftorture.c b/kernel/scftorture.c index 5d113aa59e773..83c33ba0ca7e0 100644 --- a/kernel/scftorture.c +++ b/kernel/scftorture.c @@ -171,7 +171,8 @@ static void scf_torture_stats_print(void) scfs.n_all_wait += scf_stats_p[i].n_all_wait; } if (atomic_read(&n_errs) || atomic_read(&n_mb_in_errs) || - atomic_read(&n_mb_out_errs) || atomic_read(&n_alloc_errs)) + atomic_read(&n_mb_out_errs) || + (!IS_ENABLED(CONFIG_KASAN) && atomic_read(&n_alloc_errs))) bangstr = "!!! "; pr_alert("%s %sscf_invoked_count %s: %lld resched: %lld single: %lld/%lld single_ofl: %lld/%lld single_rpc: %lld single_rpc_ofl: %lld many: %lld/%lld all: %lld/%lld ", SCFTORT_FLAG, bangstr, isdone ? "VER" : "ver", invoked_count, scfs.n_resched, @@ -323,7 +324,8 @@ static void scftorture_invoke_one(struct scf_statistics *scfp, struct torture_ra preempt_disable(); if (scfsp->scfs_prim == SCF_PRIM_SINGLE || scfsp->scfs_wait) { scfcp = kmalloc(sizeof(*scfcp), GFP_ATOMIC); - if (WARN_ON_ONCE(!scfcp)) { + if (!scfcp) { + WARN_ON_ONCE(!IS_ENABLED(CONFIG_KASAN)); atomic_inc(&n_alloc_errs); } else { scfcp->scfc_cpu = -1;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Yicong Yang yangyicong@hisilicon.com

[ Upstream commit 0242737dc4eb9f6e9a5ea594b3f93efa0b12f28d ]

Some HiSilicon SMMU PMCG suffers the erratum 162001900 that the PMU disable control sometimes fail to disable the counters. This will lead to error or inaccurate data since before we enable the counters the counter's still counting for the event used in last perf session.

This patch tries to fix this by hardening the global disable process. Before disable the PMU, writing an invalid event type (0xffff) to focibly stop the counters. Correspondingly restore each events on pmu::pmu_enable().

Signed-off-by: Yicong Yang yangyicong@hisilicon.com Link: https://lore.kernel.org/r/20230814124012.58013-1-yangyicong@huawei.com Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- Documentation/arm64/silicon-errata.rst | 3 ++ drivers/acpi/arm64/iort.c | 5 ++- drivers/perf/arm_smmuv3_pmu.c | 46 +++++++++++++++++++++++++- include/linux/acpi_iort.h | 1 + 4 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index b3c8ac6a2c385..9000640f7f7a0 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -193,6 +193,9 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | Hisilicon | Hip08 SMMU PMCG | #162001800 | N/A | +----------------+-----------------+-----------------+-----------------------------+ +| Hisilicon | Hip08 SMMU PMCG | #162001900 | N/A | +| | Hip09 SMMU PMCG | | | ++----------------+-----------------+-----------------+-----------------------------+ +----------------+-----------------+-----------------+-----------------------------+ | Qualcomm Tech. | Kryo/Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 | +----------------+-----------------+-----------------+-----------------------------+ diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 2e1cae53536f5..3a6cf5675e607 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -1699,7 +1699,10 @@ static void __init arm_smmu_v3_pmcg_init_resources(struct resource *res, static struct acpi_platform_list pmcg_plat_info[] __initdata = { /* HiSilicon Hip08 Platform */ {"HISI ", "HIP08 ", 0, ACPI_SIG_IORT, greater_than_or_equal, - "Erratum #162001800", IORT_SMMU_V3_PMCG_HISI_HIP08}, + "Erratum #162001800, Erratum #162001900", IORT_SMMU_V3_PMCG_HISI_HIP08}, + /* HiSilicon Hip09 Platform */ + {"HISI ", "HIP09 ", 0, ACPI_SIG_IORT, greater_than_or_equal, + "Erratum #162001900", IORT_SMMU_V3_PMCG_HISI_HIP09}, { } };

diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c index 25a269d431e45..0e17c57ddb876 100644 --- a/drivers/perf/arm_smmuv3_pmu.c +++ b/drivers/perf/arm_smmuv3_pmu.c @@ -115,6 +115,7 @@ #define SMMU_PMCG_PA_SHIFT 12

#define SMMU_PMCG_EVCNTR_RDONLY BIT(0) +#define SMMU_PMCG_HARDEN_DISABLE BIT(1)

static int cpuhp_state_num;

@@ -159,6 +160,20 @@ static inline void smmu_pmu_enable(struct pmu *pmu) writel(SMMU_PMCG_CR_ENABLE, smmu_pmu->reg_base + SMMU_PMCG_CR); }

+static int smmu_pmu_apply_event_filter(struct smmu_pmu *smmu_pmu, + struct perf_event *event, int idx); + +static inline void smmu_pmu_enable_quirk_hip08_09(struct pmu *pmu) +{ + struct smmu_pmu *smmu_pmu = to_smmu_pmu(pmu); + unsigned int idx; + + for_each_set_bit(idx, smmu_pmu->used_counters, smmu_pmu->num_counters) + smmu_pmu_apply_event_filter(smmu_pmu, smmu_pmu->events[idx], idx); + + smmu_pmu_enable(pmu); +} + static inline void smmu_pmu_disable(struct pmu *pmu) { struct smmu_pmu *smmu_pmu = to_smmu_pmu(pmu); @@ -167,6 +182,22 @@ static inline void smmu_pmu_disable(struct pmu *pmu) writel(0, smmu_pmu->reg_base + SMMU_PMCG_IRQ_CTRL); }

+static inline void smmu_pmu_disable_quirk_hip08_09(struct pmu *pmu) +{ + struct smmu_pmu *smmu_pmu = to_smmu_pmu(pmu); + unsigned int idx; + + /* + * The global disable of PMU sometimes fail to stop the counting. + * Harden this by writing an invalid event type to each used counter + * to forcibly stop counting. + */ + for_each_set_bit(idx, smmu_pmu->used_counters, smmu_pmu->num_counters) + writel(0xffff, smmu_pmu->reg_base + SMMU_PMCG_EVTYPER(idx)); + + smmu_pmu_disable(pmu); +} + static inline void smmu_pmu_counter_set_value(struct smmu_pmu *smmu_pmu, u32 idx, u64 value) { @@ -765,7 +796,10 @@ static void smmu_pmu_get_acpi_options(struct smmu_pmu *smmu_pmu) switch (model) { case IORT_SMMU_V3_PMCG_HISI_HIP08: /* HiSilicon Erratum 162001800 */ - smmu_pmu->options |= SMMU_PMCG_EVCNTR_RDONLY; + smmu_pmu->options |= SMMU_PMCG_EVCNTR_RDONLY | SMMU_PMCG_HARDEN_DISABLE; + break; + case IORT_SMMU_V3_PMCG_HISI_HIP09: + smmu_pmu->options |= SMMU_PMCG_HARDEN_DISABLE; break; }

@@ -890,6 +924,16 @@ static int smmu_pmu_probe(struct platform_device *pdev) if (!dev->of_node) smmu_pmu_get_acpi_options(smmu_pmu);

+ /* + * For platforms suffer this quirk, the PMU disable sometimes fails to + * stop the counters. This will leads to inaccurate or error counting. + * Forcibly disable the counters with these quirk handler. + */ + if (smmu_pmu->options & SMMU_PMCG_HARDEN_DISABLE) { + smmu_pmu->pmu.pmu_enable = smmu_pmu_enable_quirk_hip08_09; + smmu_pmu->pmu.pmu_disable = smmu_pmu_disable_quirk_hip08_09; + } + /* Pick one CPU to be the preferred one to use */ smmu_pmu->on_cpu = raw_smp_processor_id(); WARN_ON(irq_set_affinity(smmu_pmu->irq, cpumask_of(smmu_pmu->on_cpu))); diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h index b43be0987b19e..a2a51fafa3550 100644 --- a/include/linux/acpi_iort.h +++ b/include/linux/acpi_iort.h @@ -21,6 +21,7 @@ */ #define IORT_SMMU_V3_PMCG_GENERIC 0x00000000 /* Generic SMMUv3 PMCG */ #define IORT_SMMU_V3_PMCG_HISI_HIP08 0x00000001 /* HiSilicon HIP08 PMCG */ +#define IORT_SMMU_V3_PMCG_HISI_HIP09 0x00000002 /* HiSilicon HIP09 PMCG */

int iort_register_domain_token(int trans_id, phys_addr_t base, struct fwnode_handle *fw_node);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Tomislav Novak tnovak@meta.com

[ Upstream commit d11a69873d9a7435fe6a48531e165ab80a8b1221 ]

Arm platforms use is_default_overflow_handler() to determine if the hw_breakpoint code should single-step over the breakpoint trigger or let the custom handler deal with it.

Since bpf_overflow_handler() currently isn't recognized as a default handler, attaching a BPF program to a PERF_TYPE_BREAKPOINT event causes it to keep firing (the instruction triggering the data abort exception is never skipped). For example:

# bpftrace -e 'watchpoint:0x10000:4:w { print("hit") }' -c ./test Attaching 1 probe... hit hit [...] ^C

(./test performs a single 4-byte store to 0x10000)

This patch replaces the check with uses_default_overflow_handler(), which accounts for the bpf_overflow_handler() case by also testing if one of the perf_event_output functions gets invoked indirectly, via orig_default_handler.

Signed-off-by: Tomislav Novak tnovak@meta.com Tested-by: Samuel Gosselin sgosselin@google.com # arm64 Reviewed-by: Catalin Marinas catalin.marinas@arm.com Acked-by: Alexei Starovoitov ast@kernel.org Link: https://lore.kernel.org/linux-arm-kernel/20220923203644.2731604-1-tnovak@fb.... Link: https://lore.kernel.org/r/20230605191923.1219974-1-tnovak@meta.com Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/kernel/hw_breakpoint.c | 8 ++++---- arch/arm64/kernel/hw_breakpoint.c | 4 ++-- include/linux/perf_event.h | 22 +++++++++++++++++++--- 3 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index 054e9199f30db..dc0fb7a813715 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -626,7 +626,7 @@ int hw_breakpoint_arch_parse(struct perf_event *bp, hw->address &= ~alignment_mask; hw->ctrl.len <<= offset;

- if (is_default_overflow_handler(bp)) { + if (uses_default_overflow_handler(bp)) { /* * Mismatch breakpoints are required for single-stepping * breakpoints. @@ -798,7 +798,7 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr, * Otherwise, insert a temporary mismatch breakpoint so that * we can single-step over the watchpoint trigger. */ - if (!is_default_overflow_handler(wp)) + if (!uses_default_overflow_handler(wp)) continue; step: enable_single_step(wp, instruction_pointer(regs)); @@ -811,7 +811,7 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr, info->trigger = addr; pr_debug("watchpoint fired: address = 0x%x\n", info->trigger); perf_bp_event(wp, regs); - if (is_default_overflow_handler(wp)) + if (uses_default_overflow_handler(wp)) enable_single_step(wp, instruction_pointer(regs)); }

@@ -886,7 +886,7 @@ static void breakpoint_handler(unsigned long unknown, struct pt_regs *regs) info->trigger = addr; pr_debug("breakpoint fired: address = 0x%x\n", addr); perf_bp_event(bp, regs); - if (is_default_overflow_handler(bp)) + if (uses_default_overflow_handler(bp)) enable_single_step(bp, addr); goto unlock; } diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c index b29a311bb0552..9659a9555c63a 100644 --- a/arch/arm64/kernel/hw_breakpoint.c +++ b/arch/arm64/kernel/hw_breakpoint.c @@ -654,7 +654,7 @@ static int breakpoint_handler(unsigned long unused, unsigned long esr, perf_bp_event(bp, regs);

/* Do we need to handle the stepping? */ - if (is_default_overflow_handler(bp)) + if (uses_default_overflow_handler(bp)) step = 1; unlock: rcu_read_unlock(); @@ -733,7 +733,7 @@ static u64 get_distance_from_watchpoint(unsigned long addr, u64 val, static int watchpoint_report(struct perf_event *wp, unsigned long addr, struct pt_regs *regs) { - int step = is_default_overflow_handler(wp); + int step = uses_default_overflow_handler(wp); struct arch_hw_breakpoint *info = counter_arch_bp(wp);

info->trigger = addr; diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 0031f7b4d9aba..63fae3c7ae430 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1139,15 +1139,31 @@ extern int perf_event_output(struct perf_event *event, struct pt_regs *regs);

static inline bool -is_default_overflow_handler(struct perf_event *event) +__is_default_overflow_handler(perf_overflow_handler_t overflow_handler) { - if (likely(event->overflow_handler == perf_event_output_forward)) + if (likely(overflow_handler == perf_event_output_forward)) return true; - if (unlikely(event->overflow_handler == perf_event_output_backward)) + if (unlikely(overflow_handler == perf_event_output_backward)) return true; return false; }

+#define is_default_overflow_handler(event) \ + __is_default_overflow_handler((event)->overflow_handler) + +#ifdef CONFIG_BPF_SYSCALL +static inline bool uses_default_overflow_handler(struct perf_event *event) +{ + if (likely(is_default_overflow_handler(event))) + return true; + + return __is_default_overflow_handler(event->orig_overflow_handler); +} +#else +#define uses_default_overflow_handler(event) \ + is_default_overflow_handler(event) +#endif + extern void perf_event_header__init_id(struct perf_event_header *header, struct perf_sample_data *data,

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Zhangjin Wu falcon@tinylab.org

[ Upstream commit c388c9920da2679f62bec48d00ca9e80e9d0a364 ]

kernel parameters allow pass two types of strings, one type is like 'noapic', another type is like 'panic=5', the first type is passed as arguments of the init program, the second type is passed as environment variables of the init program.

when users pass kernel parameters like this:

noapic NOLIBC_TEST=syscall

our nolibc-test program will use the test setting from argv[1] and ignore the one from NOLIBC_TEST environment variable, and at last, it will print the following line and ignore the whole test setting.

Ignoring unknown test name 'noapic'

reversing the parsing order does solve the above issue:

test = getenv("NOLIBC_TEST"); if (test) test = argv[1];

but it still doesn't work with such kernel parameters (without NOLIBC_TEST environment variable):

noapic FOO=bar

To support all of the potential kernel parameters, let's verify the test setting from both of argv[1] and NOLIBC_TEST environment variable.

Reviewed-by: Thomas Weißschuh linux@weissschuh.net Signed-off-by: Zhangjin Wu falcon@tinylab.org Signed-off-by: Willy Tarreau w@1wt.eu Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/nolibc/nolibc-test.c | 33 ++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 78bced95ac630..f8e8e8d2a5e18 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -630,6 +630,35 @@ static struct test test_names[] = { { 0 } };

+int is_setting_valid(char *test) +{ + int idx, len, test_len, valid = 0; + char delimiter; + + if (!test) + return valid; + + test_len = strlen(test); + + for (idx = 0; test_names[idx].name; idx++) { + len = strlen(test_names[idx].name); + if (test_len < len) + continue; + + if (strncmp(test, test_names[idx].name, len) != 0) + continue; + + delimiter = test[len]; + if (delimiter != ':' && delimiter != ',' && delimiter != '\0') + continue; + + valid = 1; + break; + } + + return valid; +} + int main(int argc, char **argv, char **envp) { int min = 0; @@ -655,10 +684,10 @@ int main(int argc, char **argv, char **envp) * syscall:5-15[:.*],stdlib:8-10 */ test = argv[1]; - if (!test) + if (!is_setting_valid(test)) test = getenv("NOLIBC_TEST");

- if (test) { + if (is_setting_valid(test)) { char *comma, *colon, *dash, *value;

do {

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Azeem Shaikh azeemshaikh38@gmail.com

[ Upstream commit babb80b3ecc6f40c962e13c654ebcd27f25ee327 ]

strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy().

Direct replacement is safe here since return value of -errno is used to check for truncation instead of sizeof(dest).

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh azeemshaikh38@gmail.com Reviewed-by: Kees Cook keescook@chromium.org Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- crypto/lrw.c | 6 +++--- crypto/xts.c | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/crypto/lrw.c b/crypto/lrw.c index 8d59a66b65255..fb8892ed179f5 100644 --- a/crypto/lrw.c +++ b/crypto/lrw.c @@ -357,10 +357,10 @@ static int lrw_create(struct crypto_template *tmpl, struct rtattr **tb) * cipher name. */ if (!strncmp(cipher_name, "ecb(", 4)) { - unsigned len; + int len;

- len = strlcpy(ecb_name, cipher_name + 4, sizeof(ecb_name)); - if (len < 2 || len >= sizeof(ecb_name)) + len = strscpy(ecb_name, cipher_name + 4, sizeof(ecb_name)); + if (len < 2) goto err_free_inst;

if (ecb_name[len - 1] != ')') diff --git a/crypto/xts.c b/crypto/xts.c index de6cbcf69bbd6..b05020657cdc8 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -396,10 +396,10 @@ static int xts_create(struct crypto_template *tmpl, struct rtattr **tb) * cipher name. */ if (!strncmp(cipher_name, "ecb(", 4)) { - unsigned len; + int len;

- len = strlcpy(ctx->name, cipher_name + 4, sizeof(ctx->name)); - if (len < 2 || len >= sizeof(ctx->name)) + len = strscpy(ctx->name, cipher_name + 4, sizeof(ctx->name)); + if (len < 2) goto err_free_inst;

if (ctx->name[len - 1] != ')')

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Dmitry Antipov dmantipov@yandex.ru

[ Upstream commit 810e41cebb6c6e394f2068f839e1a3fc745a5dcc ]

When compiling with gcc 13.1 and CONFIG_FORTIFY_SOURCE=y, I've noticed the following:

In function ‘fortify_memcpy_chk’, inlined from ‘ath_tx_complete_aggr’ at drivers/net/wireless/ath/ath9k/xmit.c:556:4, inlined from ‘ath_tx_process_buffer’ at drivers/net/wireless/ath/ath9k/xmit.c:773:3: ./include/linux/fortify-string.h:529:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 529 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In function ‘fortify_memcpy_chk’, inlined from ‘ath_tx_count_frames’ at drivers/net/wireless/ath/ath9k/xmit.c:473:3, inlined from ‘ath_tx_complete_aggr’ at drivers/net/wireless/ath/ath9k/xmit.c:572:2, inlined from ‘ath_tx_process_buffer’ at drivers/net/wireless/ath/ath9k/xmit.c:773:3: ./include/linux/fortify-string.h:529:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 529 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In both cases, the compiler complains on:

memcpy(ba, &ts->ba_low, WME_BA_BMP_SIZE >> 3);

which is the legal way to copy both 'ba_low' and following 'ba_high' members of 'struct ath_tx_status' at once (that is, issue one 8-byte 'memcpy()' for two 4-byte fields). Since the fortification logic seems interprets this trick as an attempt to overread 4-byte 'ba_low', silence relevant warnings by using the convenient 'struct_group()' quirk.

Suggested-by: Johannes Berg johannes@sipsolutions.net Signed-off-by: Dmitry Antipov dmantipov@yandex.ru Acked-by: Toke Høiland-Jørgensen toke@toke.dk Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20230620080855.396851-2-dmantipov@yandex.ru Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath9k/mac.h | 6 ++++-- drivers/net/wireless/ath/ath9k/xmit.c | 4 ++-- 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h index af44b33814ddc..f03d792732da7 100644 --- a/drivers/net/wireless/ath/ath9k/mac.h +++ b/drivers/net/wireless/ath/ath9k/mac.h @@ -115,8 +115,10 @@ struct ath_tx_status { u8 qid; u16 desc_id; u8 tid; - u32 ba_low; - u32 ba_high; + struct_group(ba, + u32 ba_low; + u32 ba_high; + ); u32 evm0; u32 evm1; u32 evm2; diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index ba271a10d4ab1..eeabdd67fbccd 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -462,7 +462,7 @@ static void ath_tx_count_frames(struct ath_softc *sc, struct ath_buf *bf, isaggr = bf_isaggr(bf); if (isaggr) { seq_st = ts->ts_seqnum; - memcpy(ba, &ts->ba_low, WME_BA_BMP_SIZE >> 3); + memcpy(ba, &ts->ba, WME_BA_BMP_SIZE >> 3); }

while (bf) { @@ -545,7 +545,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, if (isaggr && txok) { if (ts->ts_flags & ATH9K_TX_BA) { seq_st = ts->ts_seqnum; - memcpy(ba, &ts->ba_low, WME_BA_BMP_SIZE >> 3); + memcpy(ba, &ts->ba, WME_BA_BMP_SIZE >> 3); } else { /* * AR5416 can become deaf/mute when BA

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Dmitry Antipov dmantipov@yandex.ru

[ Upstream commit dcce94b80a954a8968ff29fafcfb066d6197fa9a ]

When compiling with gcc 13.1 and CONFIG_FORTIFY_SOURCE=y, I've noticed the following:

In function ‘fortify_memcpy_chk’, inlined from ‘mwifiex_construct_tdls_action_frame’ at drivers/net/wireless/marvell/mwifiex/tdls.c:765:3, inlined from ‘mwifiex_send_tdls_action_frame’ at drivers/net/wireless/marvell/mwifiex/tdls.c:856:6: ./include/linux/fortify-string.h:529:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 529 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The compiler actually complains on:

memmove(pos + ETH_ALEN, &mgmt->u.action.category, sizeof(mgmt->u.action.u.tdls_discover_resp));

and it happens because the fortification logic interprets this as an attempt to overread 1-byte 'u.action.category' member of 'struct ieee80211_mgmt'. To silence this warning, it's enough to pass an address of 'u.action' itself instead of an address of its first member.

This also fixes an improper usage of 'sizeof()'. Since 'skb' is extended with 'sizeof(mgmt->u.action.u.tdls_discover_resp) + 1' bytes (where 1 is actually 'sizeof(mgmt->u.action.category)'), I assume that the same number of bytes should be copied.

Suggested-by: Brian Norris briannorris@chromium.org Signed-off-by: Dmitry Antipov dmantipov@yandex.ru Reviewed-by: Brian Norris briannorris@chromium.org Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20230629085115.180499-2-dmantipov@yandex.ru Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/marvell/mwifiex/tdls.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/tdls.c b/drivers/net/wireless/marvell/mwifiex/tdls.c index 97bb87c3676bb..6c60621b6cccb 100644 --- a/drivers/net/wireless/marvell/mwifiex/tdls.c +++ b/drivers/net/wireless/marvell/mwifiex/tdls.c @@ -735,6 +735,7 @@ mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv, int ret; u16 capab; struct ieee80211_ht_cap *ht_cap; + unsigned int extra; u8 radio, *pos;

capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap; @@ -753,7 +754,10 @@ mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv,

switch (action_code) { case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: - skb_put(skb, sizeof(mgmt->u.action.u.tdls_discover_resp) + 1); + /* See the layout of 'struct ieee80211_mgmt'. */ + extra = sizeof(mgmt->u.action.u.tdls_discover_resp) + + sizeof(mgmt->u.action.category); + skb_put(skb, extra); mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; mgmt->u.action.u.tdls_discover_resp.action_code = WLAN_PUB_ACTION_TDLS_DISCOVER_RES; @@ -762,8 +766,7 @@ mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv, mgmt->u.action.u.tdls_discover_resp.capability = cpu_to_le16(capab); /* move back for addr4 */ - memmove(pos + ETH_ALEN, &mgmt->u.action.category, - sizeof(mgmt->u.action.u.tdls_discover_resp)); + memmove(pos + ETH_ALEN, &mgmt->u.action, extra); /* init address 4 */ eth_broadcast_addr(pos);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Dmitry Antipov dmantipov@yandex.ru

[ Upstream commit 1ad8237e971630c66a1a6194491e0837b64d00e0 ]

When compiling with gcc 13.1 and CONFIG_FORTIFY_SOURCE=y, I've noticed the following:

In function ‘fortify_memcpy_chk’, inlined from ‘wil_rx_crypto_check_edma’ at drivers/net/wireless/ath/wil6210/txrx_edma.c:566:2: ./include/linux/fortify-string.h:529:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 529 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

where the compiler complains on:

const u8 *pn; ... pn = (u8 *)&st->ext.pn_15_0; ... memcpy(cc->pn, pn, IEEE80211_GCMP_PN_LEN);

and:

In function ‘fortify_memcpy_chk’, inlined from ‘wil_rx_crypto_check’ at drivers/net/wireless/ath/wil6210/txrx.c:684:2: ./include/linux/fortify-string.h:529:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 529 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

where the compiler complains on:

const u8 *pn = (u8 *)&d->mac.pn_15_0; ... memcpy(cc->pn, pn, IEEE80211_GCMP_PN_LEN);

In both cases, the fortification logic interprets 'memcpy()' as 6-byte overread of 2-byte field 'pn_15_0' of 'struct wil_rx_status_extension' and 'pn_15_0' of 'struct vring_rx_mac', respectively. To silence these warnings, last two fields of the aforementioned structures are grouped using 'struct_group_attr(pn, __packed' quirk.

Signed-off-by: Dmitry Antipov dmantipov@yandex.ru Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20230621093711.80118-1-dmantipov@yandex.ru Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/wil6210/txrx.c | 2 +- drivers/net/wireless/ath/wil6210/txrx.h | 6 ++++-- drivers/net/wireless/ath/wil6210/txrx_edma.c | 2 +- drivers/net/wireless/ath/wil6210/txrx_edma.h | 6 ++++-- 4 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 237cbd5c5060b..f29ac6de71399 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -666,7 +666,7 @@ static int wil_rx_crypto_check(struct wil6210_priv *wil, struct sk_buff *skb) struct wil_tid_crypto_rx *c = mc ? &s->group_crypto_rx : &s->tid_crypto_rx[tid]; struct wil_tid_crypto_rx_single *cc = &c->key_id[key_id]; - const u8 *pn = (u8 *)&d->mac.pn_15_0; + const u8 *pn = (u8 *)&d->mac.pn;

if (!cc->key_set) { wil_err_ratelimited(wil, diff --git a/drivers/net/wireless/ath/wil6210/txrx.h b/drivers/net/wireless/ath/wil6210/txrx.h index 1ae1bec1b97f1..689f68d89a440 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.h +++ b/drivers/net/wireless/ath/wil6210/txrx.h @@ -343,8 +343,10 @@ struct vring_rx_mac { u32 d0; u32 d1; u16 w4; - u16 pn_15_0; - u32 pn_47_16; + struct_group_attr(pn, __packed, + u16 pn_15_0; + u32 pn_47_16; + ); } __packed;

/* Rx descriptor - DMA part diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c index 201c8c35e0c9e..1ba1f21ebea26 100644 --- a/drivers/net/wireless/ath/wil6210/txrx_edma.c +++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c @@ -548,7 +548,7 @@ static int wil_rx_crypto_check_edma(struct wil6210_priv *wil, s = &wil->sta[cid]; c = mc ? &s->group_crypto_rx : &s->tid_crypto_rx[tid]; cc = &c->key_id[key_id]; - pn = (u8 *)&st->ext.pn_15_0; + pn = (u8 *)&st->ext.pn;

if (!cc->key_set) { wil_err_ratelimited(wil, diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.h b/drivers/net/wireless/ath/wil6210/txrx_edma.h index c736f7413a35f..ee90e225bb050 100644 --- a/drivers/net/wireless/ath/wil6210/txrx_edma.h +++ b/drivers/net/wireless/ath/wil6210/txrx_edma.h @@ -330,8 +330,10 @@ struct wil_rx_status_extension { u32 d0; u32 d1; __le16 seq_num; /* only lower 12 bits */ - u16 pn_15_0; - u32 pn_47_16; + struct_group_attr(pn, __packed, + u16 pn_15_0; + u32 pn_47_16; + ); } __packed;

struct wil_rx_status_extended {

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: John Watts contact@jookia.org

[ Upstream commit 8abb95250ae6af2d51993da8fcae18da2ce24cc4 ]

The controllers present in the D1 are extremely similar to the R40 and require the same reset quirks, but An extra quirk is needed to support receiving packets.

Signed-off-by: John Watts contact@jookia.org Link: https://lore.kernel.org/all/20230721221552.1973203-6-contact@jookia.org Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/Kconfig | 4 ++-- drivers/net/can/sun4i_can.c | 12 +++++++++++- 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index 3048ad77edb35..8236aabebb394 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -174,10 +174,10 @@ config CAN_SLCAN

config CAN_SUN4I tristate "Allwinner A10 CAN controller" - depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST + depends on MACH_SUN4I || MACH_SUN7I || RISCV || COMPILE_TEST help Say Y here if you want to use CAN controller found on Allwinner - A10/A20 SoCs. + A10/A20/D1 SoCs.

To compile this driver as a module, choose M here: the module will be called sun4i_can. diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index dd0c6cd76c5f5..c3a6b028ea4d6 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -91,6 +91,8 @@ #define SUN4I_REG_BUF12_ADDR 0x0070 /* CAN Tx/Rx Buffer 12 */ #define SUN4I_REG_ACPC_ADDR 0x0040 /* CAN Acceptance Code 0 */ #define SUN4I_REG_ACPM_ADDR 0x0044 /* CAN Acceptance Mask 0 */ +#define SUN4I_REG_ACPC_ADDR_D1 0x0028 /* CAN Acceptance Code 0 on the D1 */ +#define SUN4I_REG_ACPM_ADDR_D1 0x002C /* CAN Acceptance Mask 0 on the D1 */ #define SUN4I_REG_RBUF_RBACK_START_ADDR 0x0180 /* CAN transmit buffer start */ #define SUN4I_REG_RBUF_RBACK_END_ADDR 0x01b0 /* CAN transmit buffer end */

@@ -779,6 +781,11 @@ static const struct sun4ican_quirks sun4ican_quirks_r40 = { .acp_offset = 0, };

+static const struct sun4ican_quirks sun4ican_quirks_d1 = { + .has_reset = true, + .acp_offset = (SUN4I_REG_ACPC_ADDR_D1 - SUN4I_REG_ACPC_ADDR), +}; + static const struct of_device_id sun4ican_of_match[] = { { .compatible = "allwinner,sun4i-a10-can", @@ -789,6 +796,9 @@ static const struct of_device_id sun4ican_of_match[] = { }, { .compatible = "allwinner,sun8i-r40-can", .data = &sun4ican_quirks_r40 + }, { + .compatible = "allwinner,sun20i-d1-can", + .data = &sun4ican_quirks_d1 }, { /* sentinel */ }, @@ -915,4 +925,4 @@ module_platform_driver(sun4i_can_driver); MODULE_AUTHOR("Peter Chen xingkongcp@gmail.com"); MODULE_AUTHOR("Gerhard Bertelsmann info@gerhard-bertelsmann.de"); MODULE_LICENSE("Dual BSD/GPL"); -MODULE_DESCRIPTION("CAN driver for Allwinner SoCs (A10/A20)"); +MODULE_DESCRIPTION("CAN driver for Allwinner SoCs (A10/A20/D1)");

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: xu xin xu.xin16@zte.com.cn

[ Upstream commit c67180efc507e04a87f22aa68bd7dd832db006b7 ]

For now, No matter what error pointer ip_neigh_for_gw() returns, ip_finish_output2() always return -EINVAL, which may mislead the upper users.

For exemple, an application uses sendto to send an UDP packet, but when the neighbor table overflows, sendto() will get a value of -EINVAL, and it will cause users to waste a lot of time checking parameters for errors.

Return the real errno instead of -EINVAL.

Signed-off-by: xu xin xu.xin16@zte.com.cn Reviewed-by: Yang Yang yang.yang29@zte.com.cn Cc: Si Hao si.hao@zte.com.cn Reviewed-by: Kuniyuki Iwashima kuniyu@amazon.com Reviewed-by: Vadim Fedorenko vadim.fedorenko@linux.dev Link: https://lore.kernel.org/r/20230807015408.248237-1-xu.xin16@zte.com.cn Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv4/ip_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index ebd2cea5b7d7a..66908ce2dd116 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -234,7 +234,7 @@ static int ip_finish_output2(struct net *net, struct sock *sk, struct sk_buff *s net_dbg_ratelimited("%s: No header cache and no neighbour!\n", __func__); kfree_skb_reason(skb, SKB_DROP_REASON_NEIGH_CREATEFAIL); - return -EINVAL; + return PTR_ERR(neigh); }

static int ip_finish_output_gso(struct net *net, struct sock *sk,

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Ying Hsu yinghsu@chromium.org

[ Upstream commit 573ebae162111063eedc6c838a659ba628f66a0f ]

If hci_unregister_dev() frees the hci_dev object but hci_suspend_notifier may still be accessing it, it can cause the program to crash. Here's the call trace: <4>[102152.653246] Call Trace: <4>[102152.653254] hci_suspend_sync+0x109/0x301 [bluetooth] <4>[102152.653259] hci_suspend_dev+0x78/0xcd [bluetooth] <4>[102152.653263] hci_suspend_notifier+0x42/0x7a [bluetooth] <4>[102152.653268] notifier_call_chain+0x43/0x6b <4>[102152.653271] __blocking_notifier_call_chain+0x48/0x69 <4>[102152.653273] __pm_notifier_call_chain+0x22/0x39 <4>[102152.653276] pm_suspend+0x287/0x57c <4>[102152.653278] state_store+0xae/0xe5 <4>[102152.653281] kernfs_fop_write+0x109/0x173 <4>[102152.653284] __vfs_write+0x16f/0x1a2 <4>[102152.653287] ? selinux_file_permission+0xca/0x16f <4>[102152.653289] ? security_file_permission+0x36/0x109 <4>[102152.653291] vfs_write+0x114/0x21d <4>[102152.653293] __x64_sys_write+0x7b/0xdb <4>[102152.653296] do_syscall_64+0x59/0x194 <4>[102152.653299] entry_SYSCALL_64_after_hwframe+0x5c/0xc1

This patch holds the reference count of the hci_dev object while processing it in hci_suspend_notifier to avoid potential crash caused by the race condition.

Signed-off-by: Ying Hsu yinghsu@chromium.org Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/hci_core.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 146553c0054f6..fa4dd5fab0d44 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -2436,6 +2436,9 @@ static int hci_suspend_notifier(struct notifier_block *nb, unsigned long action, if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL)) return NOTIFY_DONE;

+ /* To avoid a potential race with hci_unregister_dev. */ + hci_dev_hold(hdev); + if (action == PM_SUSPEND_PREPARE) ret = hci_suspend_dev(hdev); else if (action == PM_POST_SUSPEND) @@ -2445,6 +2448,7 @@ static int hci_suspend_notifier(struct notifier_block *nb, unsigned long action, bt_dev_err(hdev, "Suspend notifier action (%lu) failed: %d", action, ret);

+ hci_dev_put(hdev); return NOTIFY_DONE; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Alexander Steffen Alexander.Steffen@infineon.com

[ Upstream commit 280db21e153d8810ce3b93640c63ae922bcb9e8e ]

Similar to the transmission of TPM responses, also the transmission of TPM commands may become corrupted. Instead of aborting when detecting such issues, try resending the command again.

Signed-off-by: Alexander Steffen Alexander.Steffen@infineon.com Reviewed-by: Jarkko Sakkinen jarkko@kernel.org Signed-off-by: Jarkko Sakkinen jarkko@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/char/tpm/tpm_tis_core.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c index 44f71f2c8cfa0..5889d9edaf940 100644 --- a/drivers/char/tpm/tpm_tis_core.c +++ b/drivers/char/tpm/tpm_tis_core.c @@ -498,10 +498,17 @@ static int tpm_tis_send_main(struct tpm_chip *chip, const u8 *buf, size_t len) int rc; u32 ordinal; unsigned long dur; + unsigned int try;

- rc = tpm_tis_send_data(chip, buf, len); - if (rc < 0) - return rc; + for (try = 0; try < TPM_RETRY; try++) { + rc = tpm_tis_send_data(chip, buf, len); + if (rc >= 0) + /* Data transfer done successfully */ + break; + else if (rc != -EIO) + /* Data transfer failed, not recoverable */ + return rc; + }

rc = tpm_tis_verify_crc(priv, len, buf); if (rc < 0) {

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: GONG, Ruiqi gongruiqi1@huawei.com

[ Upstream commit 3a198c95c95da10ad844cbeade2fe40bdf14c411 ]

The following message shows up when compiling with W=1:

In function ‘fortify_memcpy_chk’, inlined from ‘alx_get_ethtool_stats’ at drivers/net/ethernet/atheros/alx/ethtool.c:297:2: ./include/linux/fortify-string.h:592:4: error: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror=attribute-warning] 592 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In order to get alx stats altogether, alx_get_ethtool_stats() reads beyond hw->stats.rx_ok. Fix this warning by directly copying hw->stats, and refactor the unnecessarily complicated BUILD_BUG_ON btw.

Signed-off-by: GONG, Ruiqi gongruiqi1@huawei.com Reviewed-by: Simon Horman horms@kernel.org Link: https://lore.kernel.org/r/20230821013218.1614265-1-gongruiqi@huaweicloud.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/atheros/alx/ethtool.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/atheros/alx/ethtool.c b/drivers/net/ethernet/atheros/alx/ethtool.c index b716adacd8159..7f6b69a523676 100644 --- a/drivers/net/ethernet/atheros/alx/ethtool.c +++ b/drivers/net/ethernet/atheros/alx/ethtool.c @@ -292,9 +292,8 @@ static void alx_get_ethtool_stats(struct net_device *netdev, spin_lock(&alx->stats_lock);

alx_update_hw_stats(hw); - BUILD_BUG_ON(sizeof(hw->stats) - offsetof(struct alx_hw_stats, rx_ok) < - ALX_NUM_STATS * sizeof(u64)); - memcpy(data, &hw->stats.rx_ok, ALX_NUM_STATS * sizeof(u64)); + BUILD_BUG_ON(sizeof(hw->stats) != ALX_NUM_STATS * sizeof(u64)); + memcpy(data, &hw->stats, sizeof(hw->stats));

spin_unlock(&alx->stats_lock); }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: GONG, Ruiqi gongruiqi1@huawei.com

[ Upstream commit a7ed3465daa240bdf01a5420f64336fee879c09d ]

When compiling with gcc 13 and CONFIG_FORTIFY_SOURCE=y, the following warning appears:

In function ‘fortify_memcpy_chk’, inlined from ‘size_entry_mwt’ at net/bridge/netfilter/ebtables.c:2118:2: ./include/linux/fortify-string.h:592:25: error: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror=attribute-warning] 592 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The compiler is complaining:

memcpy(&offsets[1], &entry->watchers_offset, sizeof(offsets) - sizeof(offsets[0]));

where memcpy reads beyong &entry->watchers_offset to copy {watchers,target,next}_offset altogether into offsets[]. Silence the warning by wrapping these three up via struct_group().

Signed-off-by: GONG, Ruiqi gongruiqi1@huawei.com Reviewed-by: Gustavo A. R. Silva gustavoars@kernel.org Reviewed-by: Kees Cook keescook@chromium.org Signed-off-by: Florian Westphal fw@strlen.de Signed-off-by: Sasha Levin sashal@kernel.org --- include/uapi/linux/netfilter_bridge/ebtables.h | 14 ++++++++------ net/bridge/netfilter/ebtables.c | 3 +-- 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/include/uapi/linux/netfilter_bridge/ebtables.h b/include/uapi/linux/netfilter_bridge/ebtables.h index a494cf43a7552..b0caad82b6937 100644 --- a/include/uapi/linux/netfilter_bridge/ebtables.h +++ b/include/uapi/linux/netfilter_bridge/ebtables.h @@ -182,12 +182,14 @@ struct ebt_entry { unsigned char sourcemsk[ETH_ALEN]; unsigned char destmac[ETH_ALEN]; unsigned char destmsk[ETH_ALEN]; - /* sizeof ebt_entry + matches */ - unsigned int watchers_offset; - /* sizeof ebt_entry + matches + watchers */ - unsigned int target_offset; - /* sizeof ebt_entry + matches + watchers + target */ - unsigned int next_offset; + __struct_group(/* no tag */, offsets, /* no attrs */, + /* sizeof ebt_entry + matches */ + unsigned int watchers_offset; + /* sizeof ebt_entry + matches + watchers */ + unsigned int target_offset; + /* sizeof ebt_entry + matches + watchers + target */ + unsigned int next_offset; + ); unsigned char elems[0] __attribute__ ((aligned (__alignof__(struct ebt_replace)))); };

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 757ec46fc45a0..aa23479b20b2a 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -2115,8 +2115,7 @@ static int size_entry_mwt(const struct ebt_entry *entry, const unsigned char *ba return ret;

offsets[0] = sizeof(struct ebt_entry); /* matches come first */ - memcpy(&offsets[1], &entry->watchers_offset, - sizeof(offsets) - sizeof(offsets[0])); + memcpy(&offsets[1], &entry->offsets, sizeof(entry->offsets));

if (state->buf_kern_start) { buf_start = state->buf_kern_start + state->buf_kern_offset;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Johannes Berg johannes.berg@intel.com

[ Upstream commit abc76cf552e13cfa88a204b362a86b0e08e95228 ]

If there's no OCB state, don't ask the driver/mac80211 to leave, since that's just confusing. Since set/clear the chandef state, that's a simple check.

Reported-by: syzbot+09d1cd2f71e6dd3bfd2c@syzkaller.appspotmail.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/wireless/ocb.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/net/wireless/ocb.c b/net/wireless/ocb.c index 27a1732264f95..29afaf3da54f3 100644 --- a/net/wireless/ocb.c +++ b/net/wireless/ocb.c @@ -68,6 +68,9 @@ int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev, if (!rdev->ops->leave_ocb) return -EOPNOTSUPP;

+ if (!wdev->u.ocb.chandef.chan) + return -ENOTCONN; + err = rdev_leave_ocb(rdev, dev); if (!err) memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef));

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Johannes Berg johannes.berg@intel.com

[ Upstream commit fba360a047d5eeeb9d4b7c3a9b1c8308980ce9a6 ]

While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address header to avoid accessing invalid memory if shorter frames are passed in.

Reported-by: syzbot+b2645b5bf1512b81fa22@syzkaller.appspotmail.com Reviewed-by: Jeff Johnson quic_jjohnson@quicinc.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mac80211_hwsim.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index da5c355405f68..db70cef854bc4 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -4906,14 +4906,15 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]); frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);

+ if (frame_data_len < sizeof(struct ieee80211_hdr_3addr) || + frame_data_len > IEEE80211_MAX_DATA_LEN) + goto err; + /* Allocate new skb here */ skb = alloc_skb(frame_data_len, GFP_KERNEL); if (skb == NULL) goto err;

- if (frame_data_len > IEEE80211_MAX_DATA_LEN) - goto err; - /* Copy the data */ skb_put_data(skb, frame_data, frame_data_len);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Marek Vasut marex@denx.de

[ Upstream commit 362fa8f6e6a05089872809f4465bab9d011d05b3 ]

This bridge seems to need the HSE packet, otherwise the image is shifted up and corrupted at the bottom. This makes the bridge work with Samsung DSIM on i.MX8MM and i.MX8MP.

Signed-off-by: Marek Vasut marex@denx.de Reviewed-by: Sam Ravnborg sam@ravnborg.org Signed-off-by: Robert Foss rfoss@kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20230615201902.566182-3-marex@... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/tc358762.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/tc358762.c b/drivers/gpu/drm/bridge/tc358762.c index 7f4fce1aa9988..8db981e7759b9 100644 --- a/drivers/gpu/drm/bridge/tc358762.c +++ b/drivers/gpu/drm/bridge/tc358762.c @@ -216,7 +216,7 @@ static int tc358762_probe(struct mipi_dsi_device *dsi) dsi->lanes = 1; dsi->format = MIPI_DSI_FMT_RGB888; dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | - MIPI_DSI_MODE_LPM; + MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_VIDEO_HSE;

ret = tc358762_parse_dt(ctx); if (ret < 0)

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org

[ Upstream commit c42f5452de6ad2599c6e5e2a64c180a4ac835d27 ]

There is no 'msg-size' property in ramoops, so assume intention was for 'pmsg-size':

sm6125-sony-xperia-seine-pdx201.dtb: ramoops@ffc00000: Unevaluated properties are not allowed ('msg-size' was unexpected)

Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Reviewed-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20230618114442.140185-3-krzysztof.kozlowski@linaro... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts b/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts index e1ab5b5189949..4a77b650c0d8d 100644 --- a/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts +++ b/arch/arm64/boot/dts/qcom/sm6125-sony-xperia-seine-pdx201.dts @@ -73,7 +73,7 @@ pstore_mem: ramoops@ffc00000 { reg = <0x0 0xffc40000 0x0 0xc0000>; record-size = <0x1000>; console-size = <0x40000>; - msg-size = <0x20000 0x20000>; + pmsg-size = <0x20000>; };

cmdline_mem: memory@ffd00000 {

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org

[ Upstream commit 4e6b942f092653ebcdbbc0819b2d1f08ab415bdc ]

There is no 'msg-size' property in ramoops, so assume intention was for 'pmsg-size':

sm8150-sony-xperia-kumano-griffin.dtb: ramoops@ffc00000: Unevaluated properties are not allowed ('msg-size' was unexpected)

Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Reviewed-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20230618114442.140185-6-krzysztof.kozlowski@linaro... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi b/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi index 04c71f74ab72d..c9aa7764fc59a 100644 --- a/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi @@ -127,7 +127,7 @@ ramoops@ffc00000 { reg = <0x0 0xffc00000 0x0 0x100000>; record-size = <0x1000>; console-size = <0x40000>; - msg-size = <0x20000 0x20000>; + pmsg-size = <0x20000>; ecc-size = <16>; no-map; };

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Rong Tao rongtao@cestc.cn

[ Upstream commit 910e230d5f1bb72c54532e94fbb1705095c7bab6 ]

Macro symbol_put() is defined as __symbol_put(__stringify(x))

ksym_name = "jiffies" symbol_put(ksym_name)

will be resolved as

__symbol_put("ksym_name")

which is clearly wrong. So symbol_put must be replaced with __symbol_put.

When we uninstall hw_breakpoint.ko (rmmod), a kernel bug occurs with the following error:

[11381.854152] kernel BUG at kernel/module/main.c:779! [11381.854159] invalid opcode: 0000 [#2] PREEMPT SMP PTI [11381.854163] CPU: 8 PID: 59623 Comm: rmmod Tainted: G D OE 6.2.9-200.fc37.x86_64 #1 [11381.854167] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B360M-HDV, BIOS P3.20 10/23/2018 [11381.854169] RIP: 0010:__symbol_put+0xa2/0xb0 [11381.854175] Code: 00 e8 92 d2 f7 ff 65 8b 05 c3 2f e6 78 85 c0 74 1b 48 8b 44 24 30 65 48 2b 04 25 28 00 00 00 75 12 48 83 c4 38 c3 cc cc cc cc <0f> 0b 0f 1f 44 00 00 eb de e8 c0 df d8 00 90 90 90 90 90 90 90 90 [11381.854178] RSP: 0018:ffffad8ec6ae7dd0 EFLAGS: 00010246 [11381.854181] RAX: 0000000000000000 RBX: ffffffffc1fd1240 RCX: 000000000000000c [11381.854184] RDX: 000000000000006b RSI: ffffffffc02bf7c7 RDI: ffffffffc1fd001c [11381.854186] RBP: 000055a38b76e7c8 R08: ffffffff871ccfe0 R09: 0000000000000000 [11381.854188] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [11381.854190] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [11381.854192] FS: 00007fbf7c62c740(0000) GS:ffff8c5badc00000(0000) knlGS:0000000000000000 [11381.854195] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [11381.854197] CR2: 000055a38b7793f8 CR3: 0000000363e1e001 CR4: 00000000003726e0 [11381.854200] DR0: ffffffffb3407980 DR1: 0000000000000000 DR2: 0000000000000000 [11381.854202] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [11381.854204] Call Trace: [11381.854207] <TASK> [11381.854212] s_module_exit+0xc/0xff0 [symbol_getput] [11381.854219] __do_sys_delete_module.constprop.0+0x198/0x2f0 [11381.854225] do_syscall_64+0x58/0x80 [11381.854231] ? exit_to_user_mode_prepare+0x180/0x1f0 [11381.854237] ? syscall_exit_to_user_mode+0x17/0x40 [11381.854241] ? do_syscall_64+0x67/0x80 [11381.854245] ? syscall_exit_to_user_mode+0x17/0x40 [11381.854248] ? do_syscall_64+0x67/0x80 [11381.854252] ? exc_page_fault+0x70/0x170 [11381.854256] entry_SYSCALL_64_after_hwframe+0x72/0xdc

Signed-off-by: Rong Tao rongtao@cestc.cn Reviewed-by: Petr Mladek pmladek@suse.com Signed-off-by: Luis Chamberlain mcgrof@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- samples/hw_breakpoint/data_breakpoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/hw_breakpoint/data_breakpoint.c b/samples/hw_breakpoint/data_breakpoint.c index 418c46fe5ffc3..9debd128b2ab8 100644 --- a/samples/hw_breakpoint/data_breakpoint.c +++ b/samples/hw_breakpoint/data_breakpoint.c @@ -70,7 +70,7 @@ static int __init hw_break_module_init(void) static void __exit hw_break_module_exit(void) { unregister_wide_hw_breakpoint(sample_hbp); - symbol_put(ksym_name); + __symbol_put(ksym_name); printk(KERN_INFO "HW Breakpoint for %s write uninstalled\n", ksym_name); }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com

[ Upstream commit 55cb3dc271d81f1982c949a2ac483a6daf613b92 ]

make KCFLAGS='-fanalyzer' sound/soc/sof/intel/ reports a possible NULL pointer dereference.

sound/soc/sof/topology.c:1136:21: error: dereference of NULL ‘w’ [CWE-476] [-Werror=analyzer-null-dereference]

1136 | strcmp(w->sname, rtd->dai_link->stream_name))

The code is rather confusing and can be simplified to make static analysis happy. No functionality change.

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Reviewed-by: Daniel Baluta daniel.baluta@nxp.com Reviewed-by: Yaochun Hung yc.hung@mediatek.com Link: https://lore.kernel.org/r/20230731213748.440285-4-pierre-louis.bossart@linux... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/sof/topology.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 872e44408298f..e7305ce57ea1f 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -1086,16 +1086,17 @@ static void sof_disconnect_dai_widget(struct snd_soc_component *scomp, { struct snd_soc_card *card = scomp->card; struct snd_soc_pcm_runtime *rtd; + const char *sname = w->sname; struct snd_soc_dai *cpu_dai; int i;

- if (!w->sname) + if (!sname) return;

list_for_each_entry(rtd, &card->rtd_list, list) { /* does stream match DAI link ? */ if (!rtd->dai_link->stream_name || - strcmp(w->sname, rtd->dai_link->stream_name)) + strcmp(sname, rtd->dai_link->stream_name)) continue;

switch (w->id) {

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com

[ Upstream commit d2852b8c045ebd31d753b06f2810df5be30ed56a ]

One more PCI ID for the road.

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Link: https://lore.kernel.org/r/20230802150105.24604-5-pierre-louis.bossart@linux.... Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/hda/intel-dsp-config.c | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c index 317bdf6dcbef4..2873420c9aca8 100644 --- a/sound/hda/intel-dsp-config.c +++ b/sound/hda/intel-dsp-config.c @@ -481,6 +481,14 @@ static const struct config_entry config_table[] = { }, #endif

+/* Lunar Lake */ +#if IS_ENABLED(CONFIG_SND_SOC_SOF_LUNARLAKE) + /* Lunarlake-P */ + { + .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE, + .device = PCI_DEVICE_ID_INTEL_HDA_LNL_P, + }, +#endif };

static const struct config_entry *snd_intel_dsp_find_config

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Leo Chen sancchen@amd.com

[ Upstream commit 026a71babf48efb6b9884a3a66fa31aec9e1ea54 ]

[Why & How] HDMI TMDS does not have ODM support. Filtering 420 modes that exceed the 4096 FMT limitation on DCN31 will resolve intermittent corruptions issues.

Reviewed-by: Nicholas Kazlauskas nicholas.kazlauskas@amd.com Acked-by: Tom Chung chiahsuan.chung@amd.com Signed-off-by: Leo Chen sancchen@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c index ebc04b72b284b..9c84561ff3bc4 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c @@ -4133,7 +4133,9 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l } if (v->OutputFormat[k] == dm_420 && v->HActive[k] > DCN31_MAX_FMT_420_BUFFER_WIDTH && v->ODMCombineEnablePerState[i][k] != dm_odm_combine_mode_4to1) { - if (v->HActive[k] / 2 > DCN31_MAX_FMT_420_BUFFER_WIDTH) { + if (v->Output[k] == dm_hdmi) { + FMTBufferExceeded = true; + } else if (v->HActive[k] / 2 > DCN31_MAX_FMT_420_BUFFER_WIDTH) { v->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_4to1; v->PlaneRequiredDISPCLK = v->PlaneRequiredDISPCLKWithODMCombine4To1;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Tuo Li islituo@gmail.com

[ Upstream commit 2e63972a2de14482d0eae1a03a73e379f1c3f44c ]

The variable crtc->state->event is often protected by the lock crtc->dev->event_lock when is accessed. However, it is accessed as a condition of an if statement in exynos_drm_crtc_atomic_disable() without holding the lock:

if (crtc->state->event && !crtc->state->active)

However, if crtc->state->event is changed to NULL by another thread right after the conditions of the if statement is checked to be true, a null-pointer dereference can occur in drm_crtc_send_vblank_event():

e->pipe = pipe;

To fix this possible null-pointer dereference caused by data race, the spin lock coverage is extended to protect the if statement as well as the function call to drm_crtc_send_vblank_event().

Reported-by: BassCheck bass@buaa.edu.cn Link: https://sites.google.com/view/basscheck/home Signed-off-by: Tuo Li islituo@gmail.com Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Added relevant link. Signed-off-by: Inki Dae inki.dae@samsung.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/exynos/exynos_drm_crtc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index 4153f302de7c4..d19e796c20613 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -39,13 +39,12 @@ static void exynos_drm_crtc_atomic_disable(struct drm_crtc *crtc, if (exynos_crtc->ops->atomic_disable) exynos_crtc->ops->atomic_disable(exynos_crtc);

+ spin_lock_irq(&crtc->dev->event_lock); if (crtc->state->event && !crtc->state->active) { - spin_lock_irq(&crtc->dev->event_lock); drm_crtc_send_vblank_event(crtc, crtc->state->event); - spin_unlock_irq(&crtc->dev->event_lock); - crtc->state->event = NULL; } + spin_unlock_irq(&crtc->dev->event_lock); }

static int exynos_crtc_atomic_check(struct drm_crtc *crtc,

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Tony Lindgren tony@atomide.com

[ Upstream commit 03a711d3cb83692733f865312f49e665c49de6de ]

Enable the uart quirks similar to the earlier SoCs. Let's assume we are likely going to need a k3 specific quirk mask separate from the earlier SoCs, so let's not start changing the revision register mask at this point.

Note that SYSC_QUIRK_LEGACY_IDLE will be needed until we can remove the need for pm_runtime_irq_safe() from 8250_omap driver.

Reviewed-by: Nishanth Menon nm@ti.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bus/ti-sysc.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index ac36b01cf6d5d..ddde1427c90c7 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1548,6 +1548,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x47422e03, 0xffffffff, SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE), + SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x47424e03, 0xffffffff, + SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE),

/* Quirks that need to be set based on the module address */ SYSC_QUIRK("mcpdm", 0x40132000, 0, 0x10, -ENODEV, 0x50000800, 0xffffffff,

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Georg Ottinger g.ottinger@gmx.at

[ Upstream commit e88076348425b7d0491c8c98d8732a7df8de7aa3 ]

I run a small server that uses external hard drives for backups. The backup software I use uses ext2 filesystems with 4KiB block size and the server is running SELinux and therefore relies on xattr. I recently upgraded the hard drives from 4TB to 12TB models. I noticed that after transferring some TBs I got a filesystem error "Freeing blocks not in datazone - block = 18446744071529317386, count = 1" and the backup process stopped. Trying to fix the fs with e2fsck resulted in a completely corrupted fs. The error probably came from ext2_free_blocks(), and because of the large number 18e19 this problem immediately looked like some kind of integer overflow. Whereas the 4TB fs was about 1e9 blocks, the new 12TB is about 3e9 blocks. So, searching the ext2 code, I came across the line in fs/ext2/xattr.c:745 where ext2_new_block() is called and the resulting block number is stored in the variable block as an int datatype. If a block with a block number greater than INT32_MAX is returned, this variable overflows and the call to sb_getblk() at line fs/ext2/xattr.c:750 fails, then the call to ext2_free_blocks() produces the error.

Signed-off-by: Georg Ottinger g.ottinger@gmx.at Signed-off-by: Jan Kara jack@suse.cz Message-Id: 20230815100340.22121-1-g.ottinger@gmx.at Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ext2/xattr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c index 641abfa4b718a..2f89b1073307b 100644 --- a/fs/ext2/xattr.c +++ b/fs/ext2/xattr.c @@ -744,10 +744,10 @@ ext2_xattr_set2(struct inode *inode, struct buffer_head *old_bh, /* We need to allocate a new block */ ext2_fsblk_t goal = ext2_group_first_block_no(sb, EXT2_I(inode)->i_block_group); - int block = ext2_new_block(inode, goal, &error); + ext2_fsblk_t block = ext2_new_block(inode, goal, &error); if (error) goto cleanup; - ea_idebug(inode, "creating block %d", block); + ea_idebug(inode, "creating block %lu", block);

new_bh = sb_getblk(sb, block); if (unlikely(!new_bh)) {

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Liu Shixin via Jfs-discussion jfs-discussion@lists.sourceforge.net

[ Upstream commit 6e2bda2c192d0244b5a78b787ef20aa10cb319b7 ]

syzbot found an invalid-free in diUnmount:

BUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline] BUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674 Free of addr ffff88806f410000 by task syz-executor131/3632

CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460 ____kasan_slab_free+0xfb/0x120 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750 slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x71/0x110 mm/slub.c:3674 diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195 jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63 jfs_put_super+0x86/0x190 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1428 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1186 task_work_run+0x243/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x664/0x2070 kernel/exit.c:820 do_group_exit+0x1fd/0x2b0 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd [...]

JFS_IP(ipimap)->i_imap is not setting to NULL after free in diUnmount. If jfs_remount() free JFS_IP(ipimap)->i_imap but then failed at diMount(). JFS_IP(ipimap)->i_imap will be freed once again. Fix this problem by setting JFS_IP(ipimap)->i_imap to NULL after free.

Reported-by: syzbot+90a11e6b1e810785c6ff@syzkaller.appspotmail.com Signed-off-by: Liu Shixin liushixin2@huawei.com Signed-off-by: Dave Kleikamp dave.kleikamp@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/jfs/jfs_imap.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c index 799d3837e7c2b..4899663996d81 100644 --- a/fs/jfs/jfs_imap.c +++ b/fs/jfs/jfs_imap.c @@ -193,6 +193,7 @@ int diUnmount(struct inode *ipimap, int mounterror) * free in-memory control structure */ kfree(imap); + JFS_IP(ipimap)->i_imap = NULL;

return (0); }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Mårten Lindahl marten.lindahl@axis.com

[ Upstream commit 8922ba71c969d2a0c01a94372a71477d879470de ]

If a panic is triggered by a hrtimer interrupt all online cpus will be notified and set offline. But as highlighted by commit 19dbdcb8039c ("smp: Warn on function calls from softirq context") this call should not be made synchronous with disabled interrupts:

softdog: Initiating panic Kernel panic - not syncing: Software Watchdog Timer expired WARNING: CPU: 1 PID: 0 at kernel/smp.c:753 smp_call_function_many_cond unwind_backtrace: show_stack dump_stack_lvl __warn warn_slowpath_fmt smp_call_function_many_cond smp_call_function crash_smp_send_stop.part.0 machine_crash_shutdown __crash_kexec panic softdog_fire __hrtimer_run_queues hrtimer_interrupt

Make the smp call for machine_crash_nonpanic_core() asynchronous.

Signed-off-by: Mårten Lindahl marten.lindahl@axis.com Signed-off-by: Russell King (Oracle) rmk+kernel@armlinux.org.uk Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/kernel/machine_kexec.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index f567032a09c0b..6d1938d1b4df7 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -92,16 +92,28 @@ void machine_crash_nonpanic_core(void *unused) } }

+static DEFINE_PER_CPU(call_single_data_t, cpu_stop_csd) = + CSD_INIT(machine_crash_nonpanic_core, NULL); + void crash_smp_send_stop(void) { static int cpus_stopped; unsigned long msecs; + call_single_data_t *csd; + int cpu, this_cpu = raw_smp_processor_id();

if (cpus_stopped) return;

atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); - smp_call_function(machine_crash_nonpanic_core, NULL, false); + for_each_online_cpu(cpu) { + if (cpu == this_cpu) + continue; + + csd = &per_cpu(cpu_stop_csd, cpu); + smp_call_function_single_async(cpu, csd); + } + msecs = 1000; /* Wait at most a second for the other cpus to stop */ while ((atomic_read(&waiting_for_crash_ipi) > 0) && msecs) { mdelay(1);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Nirmal Patel nirmal.patel@linux.intel.com

[ Upstream commit f73eedc90bf73d48e8368e6b0b4ad76a7fffaef7 ]

During domain reset process vmd_domain_reset() clears PCI configuration space of VMD root ports. But certain platform has observed following errors and failed to boot. ... DMAR: VT-d detected Invalidation Queue Error: Reason f DMAR: VT-d detected Invalidation Time-out Error: SID ffff DMAR: VT-d detected Invalidation Completion Error: SID ffff DMAR: QI HEAD: UNKNOWN qw0 = 0x0, qw1 = 0x0 DMAR: QI PRIOR: UNKNOWN qw0 = 0x0, qw1 = 0x0 DMAR: Invalidation Time-out Error (ITE) cleared

The root cause is that memset_io() clears prefetchable memory base/limit registers and prefetchable base/limit 32 bits registers sequentially. This seems to be enabling prefetchable memory if the device disabled prefetchable memory originally.

Here is an example (before memset_io()):

PCI configuration space for 10000:00:00.0: 86 80 30 20 06 00 10 00 04 00 04 06 00 00 01 00 00 00 00 00 00 00 00 00 00 01 01 00 00 00 00 20 00 00 00 00 01 00 01 00 ff ff ff ff 75 05 00 00 ...

So, prefetchable memory is ffffffff00000000-575000fffff, which is disabled. When memset_io() clears prefetchable base 32 bits register, the prefetchable memory becomes 0000000000000000-575000fffff, which is enabled and incorrect.

Here is the quote from section 7.5.1.3.9 of PCI Express Base 6.0 spec:

The Prefetchable Memory Limit register must be programmed to a smaller value than the Prefetchable Memory Base register if there is no prefetchable memory on the secondary side of the bridge.

This is believed to be the reason for the failure and in addition the sequence of operation in vmd_domain_reset() is not following the PCIe specs.

Disable the bridge window by executing a sequence of operations borrowed from pci_disable_bridge_window() and pci_setup_bridge_io(), that comply with the PCI specifications.

Link: https://lore.kernel.org/r/20230810215029.1177379-1-nirmal.patel@linux.intel.... Signed-off-by: Nirmal Patel nirmal.patel@linux.intel.com Signed-off-by: Lorenzo Pieralisi lpieralisi@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/vmd.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c index d1eb17e3f1474..d4c9b888a79d7 100644 --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -526,8 +526,23 @@ static void vmd_domain_reset(struct vmd_dev *vmd) PCI_CLASS_BRIDGE_PCI)) continue;

- memset_io(base + PCI_IO_BASE, 0, - PCI_ROM_ADDRESS1 - PCI_IO_BASE); + /* + * Temporarily disable the I/O range before updating + * PCI_IO_BASE. + */ + writel(0x0000ffff, base + PCI_IO_BASE_UPPER16); + /* Update lower 16 bits of I/O base/limit */ + writew(0x00f0, base + PCI_IO_BASE); + /* Update upper 16 bits of I/O base/limit */ + writel(0, base + PCI_IO_BASE_UPPER16); + + /* MMIO Base/Limit */ + writel(0x0000fff0, base + PCI_MEMORY_BASE); + + /* Prefetchable MMIO Base/Limit */ + writel(0, base + PCI_PREF_LIMIT_UPPER32); + writel(0x0000fff0, base + PCI_PREF_MEMORY_BASE); + writel(0xffffffff, base + PCI_PREF_BASE_UPPER32); } } }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Lu Hongfei luhongfei@vivo.com

[ Upstream commit 35ca8ce495366909b4c2e701d1356570dd40c4e2 ]

Use put_device to release the object get through of_find_device_by_node, avoiding resource leaks.

Signed-off-by: Lu Hongfei luhongfei@vivo.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c index 7bc05f42a23c1..9a3f46c1f6ba3 100644 --- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c @@ -775,11 +775,13 @@ static int mdp_get_subsys_id(struct device *dev, struct device_node *node, ret = cmdq_dev_get_client_reg(&comp_pdev->dev, &cmdq_reg, index); if (ret != 0) { dev_err(&comp_pdev->dev, "cmdq_dev_get_subsys fail!\n"); + put_device(&comp_pdev->dev); return -EINVAL; }

comp->subsys_id = cmdq_reg.subsys; dev_dbg(&comp_pdev->dev, "subsys id=%d\n", cmdq_reg.subsys); + put_device(&comp_pdev->dev);

return 0; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Zhang Shurong zhang_shurong@foxmail.com

[ Upstream commit 5ae544d94abc8ff77b1b9bf8774def3fa5689b5b ]

In dw2102_i2c_transfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach dw2102_i2c_transfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash.

Similar commit: commit 950e252cb469 ("[media] dw2102: limit messages to buffer size")

Signed-off-by: Zhang Shurong zhang_shurong@foxmail.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/usb/dvb-usb/dw2102.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)

diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c index 8747960e61461..356fc728d59a8 100644 --- a/drivers/media/usb/dvb-usb/dw2102.c +++ b/drivers/media/usb/dvb-usb/dw2102.c @@ -128,6 +128,10 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],

switch (num) { case 2: + if (msg[0].len < 1) { + num = -EOPNOTSUPP; + break; + } /* read stv0299 register */ value = msg[0].buf[0];/* register */ for (i = 0; i < msg[1].len; i++) { @@ -139,6 +143,10 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], case 1: switch (msg[0].addr) { case 0x68: + if (msg[0].len < 2) { + num = -EOPNOTSUPP; + break; + } /* write to stv0299 register */ buf6[0] = 0x2a; buf6[1] = msg[0].buf[0]; @@ -148,6 +156,10 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], break; case 0x60: if (msg[0].flags == 0) { + if (msg[0].len < 4) { + num = -EOPNOTSUPP; + break; + } /* write to tuner pll */ buf6[0] = 0x2c; buf6[1] = 5; @@ -159,6 +171,10 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], dw210x_op_rw(d->udev, 0xb2, 0, 0, buf6, 7, DW210X_WRITE_MSG); } else { + if (msg[0].len < 1) { + num = -EOPNOTSUPP; + break; + } /* read from tuner */ dw210x_op_rw(d->udev, 0xb5, 0, 0, buf6, 1, DW210X_READ_MSG); @@ -166,12 +182,20 @@ static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], } break; case (DW2102_RC_QUERY): + if (msg[0].len < 2) { + num = -EOPNOTSUPP; + break; + } dw210x_op_rw(d->udev, 0xb8, 0, 0, buf6, 2, DW210X_READ_MSG); msg[0].buf[0] = buf6[0]; msg[0].buf[1] = buf6[1]; break; case (DW2102_VOLTAGE_CTRL): + if (msg[0].len < 1) { + num = -EOPNOTSUPP; + break; + } buf6[0] = 0x30; buf6[1] = msg[0].buf[0]; dw210x_op_rw(d->udev, 0xb2, 0, 0,

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Zhang Shurong zhang_shurong@foxmail.com

[ Upstream commit c30411266fd67ea3c02a05c157231654d5a3bdc9 ]

In anysee_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach anysee_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash.

Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

Signed-off-by: Zhang Shurong zhang_shurong@foxmail.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl [hverkuil: add spaces around +] Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/usb/dvb-usb-v2/anysee.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb-v2/anysee.c b/drivers/media/usb/dvb-usb-v2/anysee.c index aa45b5d263f6b..a1235d0cce92f 100644 --- a/drivers/media/usb/dvb-usb-v2/anysee.c +++ b/drivers/media/usb/dvb-usb-v2/anysee.c @@ -202,7 +202,7 @@ static int anysee_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,

while (i < num) { if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) { - if (msg[i].len > 2 || msg[i+1].len > 60) { + if (msg[i].len != 2 || msg[i + 1].len > 60) { ret = -EOPNOTSUPP; break; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Zhang Shurong zhang_shurong@foxmail.com

[ Upstream commit b97719a66970601cd3151a3e2020f4454a1c4ff6 ]

In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash.

Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

Signed-off-by: Zhang Shurong zhang_shurong@foxmail.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/usb/dvb-usb-v2/gl861.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb-v2/gl861.c b/drivers/media/usb/dvb-usb-v2/gl861.c index 0c434259c36f1..c71e7b93476de 100644 --- a/drivers/media/usb/dvb-usb-v2/gl861.c +++ b/drivers/media/usb/dvb-usb-v2/gl861.c @@ -120,7 +120,7 @@ static int gl861_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], } else if (num == 2 && !(msg[0].flags & I2C_M_RD) && (msg[1].flags & I2C_M_RD)) { /* I2C write + read */ - if (msg[0].len > 1 || msg[1].len > sizeof(ctx->buf)) { + if (msg[0].len != 1 || msg[1].len > sizeof(ctx->buf)) { ret = -EOPNOTSUPP; goto err; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Hans Verkuil hverkuil-cisco@xs4all.nl

[ Upstream commit ee630b29ea44d1851bb6c903f400956604834463 ]

BUG_ON is unnecessary here, and in addition it confuses smatch. Replacing this with an error return help resolve this smatch warning:

drivers/media/tuners/qt1010.c:350 qt1010_init() error: buffer overflow 'i2c_data' 34 <= 34

Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/tuners/qt1010.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/media/tuners/qt1010.c b/drivers/media/tuners/qt1010.c index 60931367b82ca..48fc79cd40273 100644 --- a/drivers/media/tuners/qt1010.c +++ b/drivers/media/tuners/qt1010.c @@ -345,11 +345,12 @@ static int qt1010_init(struct dvb_frontend *fe) else valptr = &tmpval;

- BUG_ON(i >= ARRAY_SIZE(i2c_data) - 1); - - err = qt1010_init_meas1(priv, i2c_data[i+1].reg, - i2c_data[i].reg, - i2c_data[i].val, valptr); + if (i >= ARRAY_SIZE(i2c_data) - 1) + err = -EIO; + else + err = qt1010_init_meas1(priv, i2c_data[i + 1].reg, + i2c_data[i].reg, + i2c_data[i].val, valptr); i++; break; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Xiaolei Wang xiaolei.wang@windriver.com

[ Upstream commit 2319b9c87fe243327285f2fefd7374ffd75a65fc ]

The device may be scheduled during the resume process, so this cannot appear in atomic operations. Since pm_runtime_set_active will resume suppliers, put set active outside the spin lock, which is only used to protect the struct cdns data structure, otherwise the kernel will report the following warning:

BUG: sleeping function called from invalid context at drivers/base/power/runtime.c:1163 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 651, name: sh preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 CPU: 0 PID: 651 Comm: sh Tainted: G WC 6.1.20 #1 Hardware name: Freescale i.MX8QM MEK (DT) Call trace: dump_backtrace.part.0+0xe0/0xf0 show_stack+0x18/0x30 dump_stack_lvl+0x64/0x80 dump_stack+0x1c/0x38 __might_resched+0x1fc/0x240 __might_sleep+0x68/0xc0 __pm_runtime_resume+0x9c/0xe0 rpm_get_suppliers+0x68/0x1b0 __pm_runtime_set_status+0x298/0x560 cdns_resume+0xb0/0x1c0 cdns3_controller_resume.isra.0+0x1e0/0x250 cdns3_plat_resume+0x28/0x40

Signed-off-by: Xiaolei Wang xiaolei.wang@windriver.com Acked-by: Peter Chen peter.chen@kernel.org Link: https://lore.kernel.org/r/20230616021952.1025854-1-xiaolei.wang@windriver.co... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/cdns3/cdns3-plat.c | 3 ++- drivers/usb/cdns3/cdnsp-pci.c | 3 ++- drivers/usb/cdns3/core.c | 15 +++++++++++---- drivers/usb/cdns3/core.h | 7 +++++-- 4 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/cdns3/cdns3-plat.c b/drivers/usb/cdns3/cdns3-plat.c index 2bc5d094548b6..726b2e4f67e4d 100644 --- a/drivers/usb/cdns3/cdns3-plat.c +++ b/drivers/usb/cdns3/cdns3-plat.c @@ -256,9 +256,10 @@ static int cdns3_controller_resume(struct device *dev, pm_message_t msg) cdns3_set_platform_suspend(cdns->dev, false, false);

spin_lock_irqsave(&cdns->lock, flags); - cdns_resume(cdns, !PMSG_IS_AUTO(msg)); + cdns_resume(cdns); cdns->in_lpm = false; spin_unlock_irqrestore(&cdns->lock, flags); + cdns_set_active(cdns, !PMSG_IS_AUTO(msg)); if (cdns->wakeup_pending) { cdns->wakeup_pending = false; enable_irq(cdns->wakeup_irq); diff --git a/drivers/usb/cdns3/cdnsp-pci.c b/drivers/usb/cdns3/cdnsp-pci.c index 29f433c5a6f3f..a85db23fa19f2 100644 --- a/drivers/usb/cdns3/cdnsp-pci.c +++ b/drivers/usb/cdns3/cdnsp-pci.c @@ -210,8 +210,9 @@ static int __maybe_unused cdnsp_pci_resume(struct device *dev) int ret;

spin_lock_irqsave(&cdns->lock, flags); - ret = cdns_resume(cdns, 1); + ret = cdns_resume(cdns); spin_unlock_irqrestore(&cdns->lock, flags); + cdns_set_active(cdns, 1);

return ret; } diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c index dbcdf3b24b477..7b20d2d5c262e 100644 --- a/drivers/usb/cdns3/core.c +++ b/drivers/usb/cdns3/core.c @@ -522,9 +522,8 @@ int cdns_suspend(struct cdns *cdns) } EXPORT_SYMBOL_GPL(cdns_suspend);

-int cdns_resume(struct cdns *cdns, u8 set_active) +int cdns_resume(struct cdns *cdns) { - struct device *dev = cdns->dev; enum usb_role real_role; bool role_changed = false; int ret = 0; @@ -556,15 +555,23 @@ int cdns_resume(struct cdns *cdns, u8 set_active) if (cdns->roles[cdns->role]->resume) cdns->roles[cdns->role]->resume(cdns, cdns_power_is_lost(cdns));

+ return 0; +} +EXPORT_SYMBOL_GPL(cdns_resume); + +void cdns_set_active(struct cdns *cdns, u8 set_active) +{ + struct device *dev = cdns->dev; + if (set_active) { pm_runtime_disable(dev); pm_runtime_set_active(dev); pm_runtime_enable(dev); }

- return 0; + return; } -EXPORT_SYMBOL_GPL(cdns_resume); +EXPORT_SYMBOL_GPL(cdns_set_active); #endif /* CONFIG_PM_SLEEP */

MODULE_AUTHOR("Peter Chen peter.chen@nxp.com"); diff --git a/drivers/usb/cdns3/core.h b/drivers/usb/cdns3/core.h index 2d332a788871e..4a4dbc2c15615 100644 --- a/drivers/usb/cdns3/core.h +++ b/drivers/usb/cdns3/core.h @@ -125,10 +125,13 @@ int cdns_init(struct cdns *cdns); int cdns_remove(struct cdns *cdns);

#ifdef CONFIG_PM_SLEEP -int cdns_resume(struct cdns *cdns, u8 set_active); +int cdns_resume(struct cdns *cdns); int cdns_suspend(struct cdns *cdns); +void cdns_set_active(struct cdns *cdns, u8 set_active); #else /* CONFIG_PM_SLEEP */ -static inline int cdns_resume(struct cdns *cdns, u8 set_active) +static inline int cdns_resume(struct cdns *cdns) +{ return 0; } +static inline int cdns_set_active(struct cdns *cdns, u8 set_active) { return 0; } static inline int cdns_suspend(struct cdns *cdns) { return 0; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Chenyuan Mi michenyuan@huawei.com

[ Upstream commit 49d736313d0975ddeb156f4f59801da833f78b30 ]

In function size_from_channelarray(), the return value 'bytes' is defined as int type. However, the calcution of 'bytes' in this function is designed to use the unsigned int type. So it is necessary to change 'bytes' type to unsigned int to avoid integer overflow.

The size_from_channelarray() is called in main() function, its return value is directly multipled by 'buf_len' and then used as the malloc() parameter. The 'buf_len' is completely controllable by user, thus a multiplication overflow may occur here. This could allocate an unexpected small area.

Signed-off-by: Chenyuan Mi michenyuan@huawei.com Link: https://lore.kernel.org/r/20230725092407.62545-1-michenyuan@huawei.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/iio/iio_generic_buffer.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/tools/iio/iio_generic_buffer.c b/tools/iio/iio_generic_buffer.c index f8deae4e26a15..44bbf80f0cfdd 100644 --- a/tools/iio/iio_generic_buffer.c +++ b/tools/iio/iio_generic_buffer.c @@ -51,9 +51,9 @@ enum autochan { * Has the side effect of filling the channels[i].location values used * in processing the buffer output. **/ -static int size_from_channelarray(struct iio_channel_info *channels, int num_channels) +static unsigned int size_from_channelarray(struct iio_channel_info *channels, int num_channels) { - int bytes = 0; + unsigned int bytes = 0; int i = 0;

while (i < num_channels) { @@ -348,7 +348,7 @@ int main(int argc, char **argv) ssize_t read_size; int dev_num = -1, trig_num = -1; char *buffer_access = NULL; - int scan_size; + unsigned int scan_size; int noevents = 0; int notrigger = 0; char *dummy; @@ -674,7 +674,16 @@ int main(int argc, char **argv) }

scan_size = size_from_channelarray(channels, num_channels); - data = malloc(scan_size * buf_len); + + size_t total_buf_len = scan_size * buf_len; + + if (scan_size > 0 && total_buf_len / scan_size != buf_len) { + ret = -EFAULT; + perror("Integer overflow happened when calculate scan_size * buf_len"); + goto error; + } + + data = malloc(total_buf_len); if (!data) { ret = -ENOMEM; goto error;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Christophe Leroy christophe.leroy@csgroup.eu

[ Upstream commit 36ef11d311f405e55ad8e848c19b212ff71ef536 ]

CHECK drivers/tty/serial/cpm_uart/cpm_uart_core.c drivers/tty/serial/cpm_uart/cpm_uart_core.c:1271:39: warning: context imbalance in 'cpm_uart_console_write' - unexpected unlock

Allthough 'nolock' is not expected to change, sparse find the following form suspicious:

if (unlikely(nolock)) { local_irq_save(flags); } else { spin_lock_irqsave(&pinfo->port.lock, flags); }

cpm_uart_early_write(pinfo, s, count, true);

if (unlikely(nolock)) { local_irq_restore(flags); } else { spin_unlock_irqrestore(&pinfo->port.lock, flags); }

Rewrite it a more obvious form:

if (unlikely(oops_in_progress)) { local_irq_save(flags); cpm_uart_early_write(pinfo, s, count, true); local_irq_restore(flags); } else { spin_lock_irqsave(&pinfo->port.lock, flags); cpm_uart_early_write(pinfo, s, count, true); spin_unlock_irqrestore(&pinfo->port.lock, flags); }

Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Link: https://lore.kernel.org/r/f7da5cdc9287960185829cfef681a7d8614efa1f.169106870... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/cpm_uart/cpm_uart_core.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c index b4369ed45ae2d..bb25691f50007 100644 --- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c +++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c @@ -1257,19 +1257,14 @@ static void cpm_uart_console_write(struct console *co, const char *s, { struct uart_cpm_port *pinfo = &cpm_uart_ports[co->index]; unsigned long flags; - int nolock = oops_in_progress;

- if (unlikely(nolock)) { + if (unlikely(oops_in_progress)) { local_irq_save(flags); - } else { - spin_lock_irqsave(&pinfo->port.lock, flags); - } - - cpm_uart_early_write(pinfo, s, count, true); - - if (unlikely(nolock)) { + cpm_uart_early_write(pinfo, s, count, true); local_irq_restore(flags); } else { + spin_lock_irqsave(&pinfo->port.lock, flags); + cpm_uart_early_write(pinfo, s, count, true); spin_unlock_irqrestore(&pinfo->port.lock, flags); } }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Xu Yang xu.yang_2@nxp.com

[ Upstream commit dda4b60ed70bd670eefda081f70c0cb20bbeb1fa ]

Some NXP processor using chipidea IP has a bug when frame babble is detected.

As per 4.15.1.1.1 Serial Bus Babble: A babble condition also exists if IN transaction is in progress at High-speed SOF2 point. This is called frame babble. The host controller must disable the port to which the frame babble is detected.

The USB controller has disabled the port (PE cleared) and has asserted USBERRINT when frame babble is detected, but PEC is not asserted. Therefore, the SW isn't aware that port has been disabled. Then the SW keeps sending packets to this port, but all of the transfers will fail.

This workaround will firstly assert PCD by SW when USBERRINT is detected and then judge whether port change has really occurred or not by polling roothub status. Because the PEC doesn't get asserted in our case, this patch will also assert it by SW when specific conditions are satisfied.

Signed-off-by: Xu Yang xu.yang_2@nxp.com Acked-by: Peter Chen peter.chen@kernel.org Link: https://lore.kernel.org/r/20230809024432.535160-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/host/ehci-hcd.c | 8 ++++++-- drivers/usb/host/ehci-hub.c | 10 +++++++++- drivers/usb/host/ehci.h | 10 ++++++++++ 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index a1930db0da1c3..802bfafb1012b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -755,10 +755,14 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)

/* normal [4.15.1.2] or error [4.15.1.1] completion */ if (likely ((status & (STS_INT|STS_ERR)) != 0)) { - if (likely ((status & STS_ERR) == 0)) + if (likely ((status & STS_ERR) == 0)) { INCR(ehci->stats.normal); - else + } else { + /* Force to check port status */ + if (ehci->has_ci_pec_bug) + status |= STS_PCD; INCR(ehci->stats.error); + } bh = 1; }

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index efe30e3be22f7..1aee392e84927 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -674,7 +674,8 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf)

if ((temp & mask) != 0 || test_bit(i, &ehci->port_c_suspend) || (ehci->reset_done[i] && time_after_eq( - jiffies, ehci->reset_done[i]))) { + jiffies, ehci->reset_done[i])) + || ehci_has_ci_pec_bug(ehci, temp)) { if (i < 7) buf [0] |= 1 << (i + 1); else @@ -875,6 +876,13 @@ int ehci_hub_control( if (temp & PORT_PEC) status |= USB_PORT_STAT_C_ENABLE << 16;

+ if (ehci_has_ci_pec_bug(ehci, temp)) { + status |= USB_PORT_STAT_C_ENABLE << 16; + ehci_info(ehci, + "PE is cleared by HW port:%d PORTSC:%08x\n", + wIndex + 1, temp); + } + if ((temp & PORT_OCC) && (!ignore_oc && !ehci->spurious_oc)){ status |= USB_PORT_STAT_C_OVERCURRENT << 16;

diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index ad3f13a3eaf1b..5c0e25742e179 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -207,6 +207,7 @@ struct ehci_hcd { /* one per controller */ unsigned has_fsl_port_bug:1; /* FreeScale */ unsigned has_fsl_hs_errata:1; /* Freescale HS quirk */ unsigned has_fsl_susp_errata:1; /* NXP SUSP quirk */ + unsigned has_ci_pec_bug:1; /* ChipIdea PEC bug */ unsigned big_endian_mmio:1; unsigned big_endian_desc:1; unsigned big_endian_capbase:1; @@ -707,6 +708,15 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc) */ #define ehci_has_fsl_susp_errata(e) ((e)->has_fsl_susp_errata)

+/* + * Some Freescale/NXP processors using ChipIdea IP have a bug in which + * disabling the port (PE is cleared) does not cause PEC to be asserted + * when frame babble is detected. + */ +#define ehci_has_ci_pec_bug(e, portsc) \ + ((e)->has_ci_pec_bug && ((e)->command & CMD_PSE) \ + && !(portsc & PORT_PEC) && !(portsc & PORT_PE)) + /* * While most USB host controllers implement their registers in * little-endian format, a minority (celleb companion chip) implement

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Sakari Ailus sakari.ailus@linux.intel.com

[ Upstream commit 9d7531be3085a8f013cf173ccc4e72e3cf493538 ]

Initialise timing struct in cio2_hw_init() to zero in order to avoid a compiler warning. The warning was a false positive.

Reported-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c index 3b76a9d0383a8..1bbe58b24d99d 100644 --- a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c +++ b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c @@ -354,7 +354,7 @@ static int cio2_hw_init(struct cio2_device *cio2, struct cio2_queue *q) void __iomem *const base = cio2->base; u8 lanes, csi2bus = q->csi2.port; u8 sensor_vc = SENSOR_VIR_CH_DFLT; - struct cio2_csi2_timing timing; + struct cio2_csi2_timing timing = { 0 }; int i, r;

fmt = cio2_find_format(NULL, &q->subdev_fmt.code);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Rob Clark robdclark@chromium.org

[ Upstream commit af42269c3523492d71ebbe11fefae2653e9cdc78 ]

For cases where icc_bw_set() can be called in callbaths that could deadlock against shrinker/reclaim, such as runpm resume, we need to decouple the icc locking. Introduce a new icc_bw_lock for cases where we need to serialize bw aggregation and update to decouple that from paths that require memory allocation such as node/link creation/ destruction.

Fixes this lockdep splat:

====================================================== WARNING: possible circular locking dependency detected 6.2.0-rc8-debug+ #554 Not tainted ------------------------------------------------------ ring0/132 is trying to acquire lock: ffffff80871916d0 (&gmu->lock){+.+.}-{3:3}, at: a6xx_pm_resume+0xf0/0x234

but task is already holding lock: ffffffdb5aee57e8 (dma_fence_map){++++}-{0:0}, at: msm_job_run+0x68/0x150

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #4 (dma_fence_map){++++}-{0:0}: __dma_fence_might_wait+0x74/0xc0 dma_resv_lockdep+0x1f4/0x2f4 do_one_initcall+0x104/0x2bc kernel_init_freeable+0x344/0x34c kernel_init+0x30/0x134 ret_from_fork+0x10/0x20

-> #3 (mmu_notifier_invalidate_range_start){+.+.}-{0:0}: fs_reclaim_acquire+0x80/0xa8 slab_pre_alloc_hook.constprop.0+0x40/0x25c __kmem_cache_alloc_node+0x60/0x1cc __kmalloc+0xd8/0x100 topology_parse_cpu_capacity+0x8c/0x178 get_cpu_for_node+0x88/0xc4 parse_cluster+0x1b0/0x28c parse_cluster+0x8c/0x28c init_cpu_topology+0x168/0x188 smp_prepare_cpus+0x24/0xf8 kernel_init_freeable+0x18c/0x34c kernel_init+0x30/0x134 ret_from_fork+0x10/0x20

-> #2 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire+0x3c/0x48 fs_reclaim_acquire+0x54/0xa8 slab_pre_alloc_hook.constprop.0+0x40/0x25c __kmem_cache_alloc_node+0x60/0x1cc __kmalloc+0xd8/0x100 kzalloc.constprop.0+0x14/0x20 icc_node_create_nolock+0x4c/0xc4 icc_node_create+0x38/0x58 qcom_icc_rpmh_probe+0x1b8/0x248 platform_probe+0x70/0xc4 really_probe+0x158/0x290 __driver_probe_device+0xc8/0xe0 driver_probe_device+0x44/0x100 __driver_attach+0xf8/0x108 bus_for_each_dev+0x78/0xc4 driver_attach+0x2c/0x38 bus_add_driver+0xd0/0x1d8 driver_register+0xbc/0xf8 __platform_driver_register+0x30/0x3c qnoc_driver_init+0x24/0x30 do_one_initcall+0x104/0x2bc kernel_init_freeable+0x344/0x34c kernel_init+0x30/0x134 ret_from_fork+0x10/0x20

-> #1 (icc_lock){+.+.}-{3:3}: __mutex_lock+0xcc/0x3c8 mutex_lock_nested+0x30/0x44 icc_set_bw+0x88/0x2b4 _set_opp_bw+0x8c/0xd8 _set_opp+0x19c/0x300 dev_pm_opp_set_opp+0x84/0x94 a6xx_gmu_resume+0x18c/0x804 a6xx_pm_resume+0xf8/0x234 adreno_runtime_resume+0x2c/0x38 pm_generic_runtime_resume+0x30/0x44 __rpm_callback+0x15c/0x174 rpm_callback+0x78/0x7c rpm_resume+0x318/0x524 __pm_runtime_resume+0x78/0xbc adreno_load_gpu+0xc4/0x17c msm_open+0x50/0x120 drm_file_alloc+0x17c/0x228 drm_open_helper+0x74/0x118 drm_open+0xa0/0x144 drm_stub_open+0xd4/0xe4 chrdev_open+0x1b8/0x1e4 do_dentry_open+0x2f8/0x38c vfs_open+0x34/0x40 path_openat+0x64c/0x7b4 do_filp_open+0x54/0xc4 do_sys_openat2+0x9c/0x100 do_sys_open+0x50/0x7c __arm64_sys_openat+0x28/0x34 invoke_syscall+0x8c/0x128 el0_svc_common.constprop.0+0xa0/0x11c do_el0_svc+0xac/0xbc el0_svc+0x48/0xa0 el0t_64_sync_handler+0xac/0x13c el0t_64_sync+0x190/0x194

-> #0 (&gmu->lock){+.+.}-{3:3}: __lock_acquire+0xe00/0x1060 lock_acquire+0x1e0/0x2f8 __mutex_lock+0xcc/0x3c8 mutex_lock_nested+0x30/0x44 a6xx_pm_resume+0xf0/0x234 adreno_runtime_resume+0x2c/0x38 pm_generic_runtime_resume+0x30/0x44 __rpm_callback+0x15c/0x174 rpm_callback+0x78/0x7c rpm_resume+0x318/0x524 __pm_runtime_resume+0x78/0xbc pm_runtime_get_sync.isra.0+0x14/0x20 msm_gpu_submit+0x58/0x178 msm_job_run+0x78/0x150 drm_sched_main+0x290/0x370 kthread+0xf0/0x100 ret_from_fork+0x10/0x20

other info that might help us debug this:

Chain exists of: &gmu->lock --> mmu_notifier_invalidate_range_start --> dma_fence_map

Possible unsafe locking scenario:

CPU0 CPU1 ---- ---- lock(dma_fence_map); lock(mmu_notifier_invalidate_range_start); lock(dma_fence_map); lock(&gmu->lock);

*** DEADLOCK ***

2 locks held by ring0/132: #0: ffffff8087191170 (&gpu->lock){+.+.}-{3:3}, at: msm_job_run+0x64/0x150 #1: ffffffdb5aee57e8 (dma_fence_map){++++}-{0:0}, at: msm_job_run+0x68/0x150

stack backtrace: CPU: 7 PID: 132 Comm: ring0 Not tainted 6.2.0-rc8-debug+ #554 Hardware name: Google Lazor (rev1 - 2) with LTE (DT) Call trace: dump_backtrace.part.0+0xb4/0xf8 show_stack+0x20/0x38 dump_stack_lvl+0x9c/0xd0 dump_stack+0x18/0x34 print_circular_bug+0x1b4/0x1f0 check_noncircular+0x78/0xac __lock_acquire+0xe00/0x1060 lock_acquire+0x1e0/0x2f8 __mutex_lock+0xcc/0x3c8 mutex_lock_nested+0x30/0x44 a6xx_pm_resume+0xf0/0x234 adreno_runtime_resume+0x2c/0x38 pm_generic_runtime_resume+0x30/0x44 __rpm_callback+0x15c/0x174 rpm_callback+0x78/0x7c rpm_resume+0x318/0x524 __pm_runtime_resume+0x78/0xbc pm_runtime_get_sync.isra.0+0x14/0x20 msm_gpu_submit+0x58/0x178 msm_job_run+0x78/0x150 drm_sched_main+0x290/0x370 kthread+0xf0/0x100 ret_from_fork+0x10/0x20

Signed-off-by: Rob Clark robdclark@chromium.org Link: https://lore.kernel.org/r/20230807171148.210181-7-robdclark@gmail.com Signed-off-by: Georgi Djakov djakov@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/interconnect/core.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index cfa52c6369d05..f4a493d78ee9a 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -29,6 +29,7 @@ static LIST_HEAD(icc_providers); static int providers_count; static bool synced_state; static DEFINE_MUTEX(icc_lock); +static DEFINE_MUTEX(icc_bw_lock); static struct dentry *icc_debugfs_dir;

static void icc_summary_show_one(struct seq_file *s, struct icc_node *n) @@ -632,7 +633,7 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw) if (WARN_ON(IS_ERR(path) || !path->num_nodes)) return -EINVAL;

- mutex_lock(&icc_lock); + mutex_lock(&icc_bw_lock);

old_avg = path->reqs[0].avg_bw; old_peak = path->reqs[0].peak_bw; @@ -664,7 +665,7 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw) apply_constraints(path); }

- mutex_unlock(&icc_lock); + mutex_unlock(&icc_bw_lock);

trace_icc_set_bw_end(path, ret);

@@ -967,6 +968,7 @@ void icc_node_add(struct icc_node *node, struct icc_provider *provider) return;

mutex_lock(&icc_lock); + mutex_lock(&icc_bw_lock);

node->provider = provider; list_add_tail(&node->node_list, &provider->nodes); @@ -992,6 +994,7 @@ void icc_node_add(struct icc_node *node, struct icc_provider *provider) node->avg_bw = 0; node->peak_bw = 0;

+ mutex_unlock(&icc_bw_lock); mutex_unlock(&icc_lock); } EXPORT_SYMBOL_GPL(icc_node_add); @@ -1129,6 +1132,7 @@ void icc_sync_state(struct device *dev) return;

mutex_lock(&icc_lock); + mutex_lock(&icc_bw_lock); synced_state = true; list_for_each_entry(p, &icc_providers, provider_list) { dev_dbg(p->dev, "interconnect provider is in synced state\n");

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: John Ogness john.ogness@linutronix.de

[ Upstream commit 696ffaf50e1f8dbc66223ff614473f945f5fb8d8 ]

Printing to consoles can be deferred for several reasons:

- explicitly with printk_deferred() - printk() in NMI context - recursive printk() calls

The current implementation is not consistent. For printk_deferred(), irq work is scheduled twice. For NMI und recursive, panic CPU suppression and caller delays are not properly enforced.

Correct these inconsistencies by consolidating the deferred printing code so that vprintk_deferred() is the top-level function for deferred printing and vprintk_emit() will perform whichever irq_work queueing is appropriate.

Also add kerneldoc for wake_up_klogd() and defer_console_output() to clarify their differences and appropriate usage.

Signed-off-by: John Ogness john.ogness@linutronix.de Reviewed-by: Sergey Senozhatsky senozhatsky@chromium.org Reviewed-by: Petr Mladek pmladek@suse.com Signed-off-by: Petr Mladek pmladek@suse.com Link: https://lore.kernel.org/r/20230717194607.145135-6-john.ogness@linutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/printk/printk.c | 35 ++++++++++++++++++++++++++++------- kernel/printk/printk_safe.c | 9 ++------- 2 files changed, 30 insertions(+), 14 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 4b9429f3fd6d8..cc53fb77f77cc 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -2269,7 +2269,11 @@ asmlinkage int vprintk_emit(int facility, int level, preempt_enable(); }

- wake_up_klogd(); + if (in_sched) + defer_console_output(); + else + wake_up_klogd(); + return printed_len; } EXPORT_SYMBOL(vprintk_emit); @@ -3490,11 +3494,33 @@ static void __wake_up_klogd(int val) preempt_enable(); }

+/** + * wake_up_klogd - Wake kernel logging daemon + * + * Use this function when new records have been added to the ringbuffer + * and the console printing of those records has already occurred or is + * known to be handled by some other context. This function will only + * wake the logging daemon. + * + * Context: Any context. + */ void wake_up_klogd(void) { __wake_up_klogd(PRINTK_PENDING_WAKEUP); }

+/** + * defer_console_output - Wake kernel logging daemon and trigger + * console printing in a deferred context + * + * Use this function when new records have been added to the ringbuffer, + * this context is responsible for console printing those records, but + * the current context is not allowed to perform the console printing. + * Trigger an irq_work context to perform the console printing. This + * function also wakes the logging daemon. + * + * Context: Any context. + */ void defer_console_output(void) { /* @@ -3511,12 +3537,7 @@ void printk_trigger_flush(void)

int vprintk_deferred(const char *fmt, va_list args) { - int r; - - r = vprintk_emit(0, LOGLEVEL_SCHED, NULL, fmt, args); - defer_console_output(); - - return r; + return vprintk_emit(0, LOGLEVEL_SCHED, NULL, fmt, args); }

int _printk_deferred(const char *fmt, ...) diff --git a/kernel/printk/printk_safe.c b/kernel/printk/printk_safe.c index ef0f9a2044da1..6d10927a07d83 100644 --- a/kernel/printk/printk_safe.c +++ b/kernel/printk/printk_safe.c @@ -38,13 +38,8 @@ asmlinkage int vprintk(const char *fmt, va_list args) * Use the main logbuf even in NMI. But avoid calling console * drivers that might have their own locks. */ - if (this_cpu_read(printk_context) || in_nmi()) { - int len; - - len = vprintk_store(0, LOGLEVEL_DEFAULT, NULL, fmt, args); - defer_console_output(); - return len; - } + if (this_cpu_read(printk_context) || in_nmi()) + return vprintk_deferred(fmt, args);

/* No obstacles. */ return vprintk_default(fmt, args);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Dmitry Osipenko dmitry.osipenko@collabora.com

[ Upstream commit 791da5c7fedbc1d662445ec030d8f86872f6184c ]

Prepare fastrpc to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions.

Acked-by: Christian König christian.koenig@amd.com Acked-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Signed-off-by: Dmitry Osipenko dmitry.osipenko@collabora.com Link: https://patchwork.freedesktop.org/patch/msgid/20221017172229.42269-12-dmitry... Stable-dep-of: a2cb9cd6a394 ("misc: fastrpc: Fix incorrect DMA mapping unmap request") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/fastrpc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 13518cac076c7..e9291694922bc 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -310,8 +310,8 @@ static void fastrpc_free_map(struct kref *ref) return; } } - dma_buf_unmap_attachment(map->attach, map->table, - DMA_BIDIRECTIONAL); + dma_buf_unmap_attachment_unlocked(map->attach, map->table, + DMA_BIDIRECTIONAL); dma_buf_detach(map->buf, map->attach); dma_buf_put(map->buf); } @@ -736,7 +736,7 @@ static int fastrpc_map_create(struct fastrpc_user *fl, int fd, goto attach_err; }

- map->table = dma_buf_map_attachment(map->attach, DMA_BIDIRECTIONAL); + map->table = dma_buf_map_attachment_unlocked(map->attach, DMA_BIDIRECTIONAL); if (IS_ERR(map->table)) { err = PTR_ERR(map->table); goto map_err;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Tiezhu Yang yangtiezhu@loongson.cn

[ Upstream commit d42f0c6ad502c9f612410e125ebdf290cce8bdc3 ]

The latest version of grep claims the egrep is now obsolete so the build now contains warnings that look like: egrep: warning: egrep is obsolescent; using grep -E fix this up by moving the related file to use "grep -E" instead.

Here are the steps to install the latest grep:

wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz tar xf grep-3.8.tar.gz cd grep-3.8 && ./configure && make sudo make install export PATH=/usr/local/bin:$PATH

Signed-off-by: Tiezhu Yang yangtiezhu@loongson.cn Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Stable-dep-of: 4fe4a6374c4d ("MIPS: Only fiddle with CHECKFLAGS if `need-compiler'") Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/Makefile | 2 +- arch/mips/vdso/Makefile | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/Makefile b/arch/mips/Makefile index ee8f47aef98b3..dd6486097e1dc 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -352,7 +352,7 @@ KBUILD_LDFLAGS += -m $(ld-emul)

ifdef need-compiler CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ - egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \ + grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \ sed -e "s/^#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/$$/&&/g') endif

diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index f72658b3a53f7..1f7d5c6c10b08 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -71,7 +71,7 @@ KCOV_INSTRUMENT := n

# Check that we don't have PIC 'jalr t9' calls left quiet_cmd_vdso_mips_check = VDSOCHK $@ - cmd_vdso_mips_check = if $(OBJDUMP) --disassemble $@ | egrep -h "jalr.*t9" > /dev/null; \ + cmd_vdso_mips_check = if $(OBJDUMP) --disassemble $@ | grep -E -h "jalr.*t9" > /dev/null; \ then (echo >&2 "$@: PIC 'jalr t9' calls are not supported"; \ rm -f $@; /bin/false); fi

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Anand Jain anand.jain@oracle.com

[ Upstream commit 6bfe3959b0e7a526f5c64747801a8613f002f05a ]

The function btrfs_validate_super() should verify the metadata_uuid in the provided superblock argument. Because, all its callers expect it to do that.

Such as in the following stacks:

write_all_supers() sb = fs_info->super_for_commit; btrfs_validate_write_super(.., sb) btrfs_validate_super(.., sb, ..)

scrub_one_super() btrfs_validate_super(.., sb, ..)

And check_dev_super() btrfs_validate_super(.., sb, ..)

However, it currently verifies the fs_info::super_copy::metadata_uuid instead. Fix this using the correct metadata_uuid in the superblock argument.

CC: stable@vger.kernel.org # 5.4+ Reviewed-by: Johannes Thumshirn johannes.thumshirn@wdc.com Tested-by: Guilherme G. Piccoli gpiccoli@igalia.com Signed-off-by: Anand Jain anand.jain@oracle.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/btrfs/disk-io.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 64daae693afd1..c44f1fcc19097 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2728,13 +2728,11 @@ int btrfs_validate_super(struct btrfs_fs_info *fs_info, ret = -EINVAL; }

- if (btrfs_fs_incompat(fs_info, METADATA_UUID) && - memcmp(fs_info->fs_devices->metadata_uuid, - fs_info->super_copy->metadata_uuid, BTRFS_FSID_SIZE)) { + if (memcmp(fs_info->fs_devices->metadata_uuid, btrfs_sb_fsid_ptr(sb), + BTRFS_FSID_SIZE) != 0) { btrfs_err(fs_info, "superblock metadata_uuid doesn't match metadata uuid of fs_devices: %pU != %pU", - fs_info->super_copy->metadata_uuid, - fs_info->fs_devices->metadata_uuid); + btrfs_sb_fsid_ptr(sb), fs_info->fs_devices->metadata_uuid); ret = -EINVAL; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Christoph Hellwig hch@lst.de

[ Upstream commit fc41c97a3a7b08131e6998bc7692f95729f9d359 ]

Use the bvec_set_page helper to initialize bvecs.

Signed-off-by: Christoph Hellwig hch@lst.de Reviewed-by: Chaitanya Kulkarni kch@nvidia.com Reviewed-by: Johannes Thumshirn johannes.thumshirn@wdc.com Link: https://lore.kernel.org/r/20230203150634.3199647-7-hch@lst.de Signed-off-by: Jens Axboe axboe@kernel.dk Stable-dep-of: 1f0bbf28940c ("nvmet-tcp: pass iov_len instead of sg->length to bvec_set_page()") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/target/io-cmd-file.c | 10 ++-------- drivers/nvme/target/tcp.c | 5 ++--- 2 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/nvme/target/io-cmd-file.c b/drivers/nvme/target/io-cmd-file.c index 871c4f32f443f..2d068439b129c 100644 --- a/drivers/nvme/target/io-cmd-file.c +++ b/drivers/nvme/target/io-cmd-file.c @@ -73,13 +73,6 @@ int nvmet_file_ns_enable(struct nvmet_ns *ns) return ret; }

-static void nvmet_file_init_bvec(struct bio_vec *bv, struct scatterlist *sg) -{ - bv->bv_page = sg_page(sg); - bv->bv_offset = sg->offset; - bv->bv_len = sg->length; -} - static ssize_t nvmet_file_submit_bvec(struct nvmet_req *req, loff_t pos, unsigned long nr_segs, size_t count, int ki_flags) { @@ -146,7 +139,8 @@ static bool nvmet_file_execute_io(struct nvmet_req *req, int ki_flags)

memset(&req->f.iocb, 0, sizeof(struct kiocb)); for_each_sg(req->sg, sg, req->sg_cnt, i) { - nvmet_file_init_bvec(&req->f.bvec[bv_cnt], sg); + bvec_set_page(&req->f.bvec[bv_cnt], sg_page(sg), sg->length, + sg->offset); len += req->f.bvec[bv_cnt].bv_len; total_len += req->f.bvec[bv_cnt].bv_len; bv_cnt++; diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index cc05c094de221..c5759eb503d00 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -321,9 +321,8 @@ static void nvmet_tcp_build_pdu_iovec(struct nvmet_tcp_cmd *cmd) while (length) { u32 iov_len = min_t(u32, length, sg->length - sg_offset);

- iov->bv_page = sg_page(sg); - iov->bv_len = sg->length; - iov->bv_offset = sg->offset + sg_offset; + bvec_set_page(iov, sg_page(sg), sg->length, + sg->offset + sg_offset);

length -= iov_len; sg = sg_next(sg);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jinjie Ruan ruanjinjie@huawei.com

[ Upstream commit 7583028d359db3cd0072badcc576b4f9455fd27a ]

The timeout arg of usb_bulk_msg() is ms already, which has been converted to jiffies by msecs_to_jiffies() in usb_start_wait_urb(). So fix the usage by removing the redundant msecs_to_jiffies() in the macros.

And as Hans suggested, also remove msecs_to_jiffies() for the IDLE_TIMEOUT macro to make it consistent here and so change IDLE_TIMEOUT to msecs_to_jiffies(IDLE_TIMEOUT) where it is used.

Fixes: e4f86e437164 ("drm: Add Grain Media GM12U320 driver v2") Signed-off-by: Jinjie Ruan ruanjinjie@huawei.com Suggested-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Link: https://patchwork.freedesktop.org/patch/msgid/20230904021421.1663892-1-ruanj... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/tiny/gm12u320.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c index 7441d992a5d7a..8b0a9059d3fdd 100644 --- a/drivers/gpu/drm/tiny/gm12u320.c +++ b/drivers/gpu/drm/tiny/gm12u320.c @@ -69,10 +69,10 @@ MODULE_PARM_DESC(eco_mode, "Turn on Eco mode (less bright, more silent)"); #define READ_STATUS_SIZE 13 #define MISC_VALUE_SIZE 4

-#define CMD_TIMEOUT msecs_to_jiffies(200) -#define DATA_TIMEOUT msecs_to_jiffies(1000) -#define IDLE_TIMEOUT msecs_to_jiffies(2000) -#define FIRST_FRAME_TIMEOUT msecs_to_jiffies(2000) +#define CMD_TIMEOUT 200 +#define DATA_TIMEOUT 1000 +#define IDLE_TIMEOUT 2000 +#define FIRST_FRAME_TIMEOUT 2000

#define MISC_REQ_GET_SET_ECO_A 0xff #define MISC_REQ_GET_SET_ECO_B 0x35 @@ -388,7 +388,7 @@ static void gm12u320_fb_update_work(struct work_struct *work) * switches back to showing its logo. */ queue_delayed_work(system_long_wq, &gm12u320->fb_update.work, - IDLE_TIMEOUT); + msecs_to_jiffies(IDLE_TIMEOUT));

return; err:

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Masami Hiramatsu (Google) mhiramat@kernel.org

[ Upstream commit 7e021da80f48582171029714f8a487347f29dddb ]

Fix to unmount the tracefs if the ftracetest mounted it for recovering system environment. If the tracefs is already mounted, this does nothing.

Suggested-by: Mark Brown broonie@kernel.org Link: https://lore.kernel.org/all/29fce076-746c-4650-8358-b4e0fa215cf7@sirena.org.... Fixes: cbd965bde74c ("ftrace/selftests: Return the skip code when tracing directory not configured in kernel") Signed-off-by: Masami Hiramatsu (Google) mhiramat@kernel.org Reviewed-by: Steven Rostedt (Google) rostedt@goodmis.org Reviewed-by: Mark Brown broonie@kernel.org Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/ftrace/ftracetest | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index c3311c8c40890..ef0edb7a71e37 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -30,6 +30,9 @@ err_ret=1 # kselftest skip code is 4 err_skip=4

+# umount required +UMOUNT_DIR="" + # cgroup RT scheduling prevents chrt commands from succeeding, which # induces failures in test wakeup tests. Disable for the duration of # the tests. @@ -44,6 +47,9 @@ setup() {

cleanup() { echo $sched_rt_runtime_orig > $sched_rt_runtime + if [ -n "${UMOUNT_DIR}" ]; then + umount ${UMOUNT_DIR} ||: + fi }

errexit() { # message @@ -155,11 +161,13 @@ if [ -z "$TRACING_DIR" ]; then mount -t tracefs nodev /sys/kernel/tracing || errexit "Failed to mount /sys/kernel/tracing" TRACING_DIR="/sys/kernel/tracing" + UMOUNT_DIR=${TRACING_DIR} # If debugfs exists, then so does /sys/kernel/debug elif [ -d "/sys/kernel/debug" ]; then mount -t debugfs nodev /sys/kernel/debug || errexit "Failed to mount /sys/kernel/debug" TRACING_DIR="/sys/kernel/debug/tracing" + UMOUNT_DIR=${TRACING_DIR} else err_ret=$err_skip errexit "debugfs and tracefs are not configured in this kernel"

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Song Shuai songshuaishuai@tinylab.org

[ Upstream commit 1bfb2b618d52e59a4ef1896b46c4698ad2be66b7 ]

The current riscv boot protocol requires 2MB alignment for RV64 and 4MB alignment for RV32.

In KEXEC_FILE path, the elf_find_pbase() function should align the kexeced kernel entry according to the requirement, otherwise the kexeced kernel would silently BUG at the setup_vm().

Fixes: 8acea455fafa ("RISC-V: Support for kexec_file on panic") Signed-off-by: Song Shuai songshuaishuai@tinylab.org Link: https://lore.kernel.org/r/20230906095817.364390-1-songshuaishuai@tinylab.org Signed-off-by: Palmer Dabbelt palmer@rivosinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/kernel/elf_kexec.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/kernel/elf_kexec.c b/arch/riscv/kernel/elf_kexec.c index c08bb5c3b3857..b3b96ff46d193 100644 --- a/arch/riscv/kernel/elf_kexec.c +++ b/arch/riscv/kernel/elf_kexec.c @@ -98,7 +98,13 @@ static int elf_find_pbase(struct kimage *image, unsigned long kernel_len, kbuf.image = image; kbuf.buf_min = lowest_paddr; kbuf.buf_max = ULONG_MAX; - kbuf.buf_align = PAGE_SIZE; + + /* + * Current riscv boot protocol requires 2MB alignment for + * RV64 and 4MB alignment for RV32 + * + */ + kbuf.buf_align = PMD_SIZE; kbuf.mem = KEXEC_BUF_MEM_UNKNOWN; kbuf.memsz = ALIGN(kernel_len, PAGE_SIZE); kbuf.top_down = false;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jinjie Ruan ruanjinjie@huawei.com

[ Upstream commit 7dcc683db3639eadd11bf0d59a09088a43de5e22 ]

Since debugfs_create_file() returns ERR_PTR and never NULL, use IS_ERR() to check the return value.

Fixes: 2fcbc569b9f5 ("scsi: lpfc: Make debugfs ktime stats generic for NVME and SCSI") Fixes: 4c47efc140fa ("scsi: lpfc: Move SCSI and NVME Stats to hardware queue structures") Fixes: 6a828b0f6192 ("scsi: lpfc: Support non-uniform allocation of MSIX vectors to hardware queues") Fixes: 95bfc6d8ad86 ("scsi: lpfc: Make FW logging dynamically configurable") Fixes: 9f77870870d8 ("scsi: lpfc: Add debugfs support for cm framework buffers") Fixes: c490850a0947 ("scsi: lpfc: Adapt partitioned XRI lists to efficient sharing") Signed-off-by: Jinjie Ruan ruanjinjie@huawei.com Link: https://lore.kernel.org/r/20230906030809.2847970-1-ruanjinjie@huawei.com Reviewed-by: Justin Tee justin.tee@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/lpfc/lpfc_debugfs.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 3e365e5e194a2..250d423710ca4 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -6069,7 +6069,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) phba->hba_debugfs_root, phba, &lpfc_debugfs_op_multixripools); - if (!phba->debug_multixri_pools) { + if (IS_ERR(phba->debug_multixri_pools)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0527 Cannot create debugfs multixripools\n"); goto debug_failed; @@ -6081,7 +6081,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_file(name, S_IFREG | 0644, phba->hba_debugfs_root, phba, &lpfc_cgn_buffer_op); - if (!phba->debug_cgn_buffer) { + if (IS_ERR(phba->debug_cgn_buffer)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "6527 Cannot create debugfs " "cgn_buffer\n"); @@ -6094,7 +6094,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_file(name, S_IFREG | 0644, phba->hba_debugfs_root, phba, &lpfc_rx_monitor_op); - if (!phba->debug_rx_monitor) { + if (IS_ERR(phba->debug_rx_monitor)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "6528 Cannot create debugfs " "rx_monitor\n"); @@ -6107,7 +6107,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_file(name, 0644, phba->hba_debugfs_root, phba, &lpfc_debugfs_ras_log); - if (!phba->debug_ras_log) { + if (IS_ERR(phba->debug_ras_log)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "6148 Cannot create debugfs" " ras_log\n"); @@ -6128,7 +6128,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_file(name, S_IFREG | 0644, phba->hba_debugfs_root, phba, &lpfc_debugfs_op_lockstat); - if (!phba->debug_lockstat) { + if (IS_ERR(phba->debug_lockstat)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "4610 Can't create debugfs lockstat\n"); goto debug_failed; @@ -6354,7 +6354,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_file(name, 0644, vport->vport_debugfs_root, vport, &lpfc_debugfs_op_scsistat); - if (!vport->debug_scsistat) { + if (IS_ERR(vport->debug_scsistat)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "4611 Cannot create debugfs scsistat\n"); goto debug_failed; @@ -6365,7 +6365,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) debugfs_create_file(name, 0644, vport->vport_debugfs_root, vport, &lpfc_debugfs_op_ioktime); - if (!vport->debug_ioktime) { + if (IS_ERR(vport->debug_ioktime)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0815 Cannot create debugfs ioktime\n"); goto debug_failed;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Kirill A. Shutemov kirill.shutemov@linux.intel.com

[ Upstream commit f530ee95b72e77b09c141c4b1a4b94d1199ffbd9 ]

The decompressor has a hard limit on the number of page tables it can allocate. This limit is defined at compile-time and will cause boot failure if it is reached.

The kernel is very strict and calculates the limit precisely for the worst-case scenario based on the current configuration. However, it is easy to forget to adjust the limit when a new use-case arises. The worst-case scenario is rarely encountered during sanity checks.

In the case of enabling 5-level paging, a use-case was overlooked. The limit needs to be increased by one to accommodate the additional level. This oversight went unnoticed until Aaron attempted to run the kernel via kexec with 5-level paging and unaccepted memory enabled.

Update wost-case calculations to include 5-level paging.

To address this issue, let's allocate some extra space for page tables. 128K should be sufficient for any use-case. The logic can be simplified by using a single value for all kernel configurations.

[ Also add a warning, should this memory run low - by Dave Hansen. ]

Fixes: 34bbb0009f3b ("x86/boot/compressed: Enable 5-level paging during decompression stage") Reported-by: Aaron Lu aaron.lu@intel.com Signed-off-by: Kirill A. Shutemov kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar mingo@kernel.org Link: https://lore.kernel.org/r/20230915070221.10266-1-kirill.shutemov@linux.intel... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/boot/compressed/ident_map_64.c | 8 +++++ arch/x86/include/asm/boot.h | 45 +++++++++++++++++-------- 2 files changed, 39 insertions(+), 14 deletions(-)

diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c index 321a5011042d4..b4155273df891 100644 --- a/arch/x86/boot/compressed/ident_map_64.c +++ b/arch/x86/boot/compressed/ident_map_64.c @@ -67,6 +67,14 @@ static void *alloc_pgt_page(void *context) return NULL; }

+ /* Consumed more tables than expected? */ + if (pages->pgt_buf_offset == BOOT_PGT_SIZE_WARN) { + debug_putstr("pgt_buf running low in " __FILE__ "\n"); + debug_putstr("Need to raise BOOT_PGT_SIZE?\n"); + debug_putaddr(pages->pgt_buf_offset); + debug_putaddr(pages->pgt_buf_size); + } + entry = pages->pgt_buf + pages->pgt_buf_offset; pages->pgt_buf_offset += PAGE_SIZE;

diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h index 9191280d9ea31..215d37f7dde8a 100644 --- a/arch/x86/include/asm/boot.h +++ b/arch/x86/include/asm/boot.h @@ -40,23 +40,40 @@ #ifdef CONFIG_X86_64 # define BOOT_STACK_SIZE 0x4000

+/* + * Used by decompressor's startup_32() to allocate page tables for identity + * mapping of the 4G of RAM in 4-level paging mode: + * - 1 level4 table; + * - 1 level3 table; + * - 4 level2 table that maps everything with 2M pages; + * + * The additional level5 table needed for 5-level paging is allocated from + * trampoline_32bit memory. + */ # define BOOT_INIT_PGT_SIZE (6*4096) -# ifdef CONFIG_RANDOMIZE_BASE + /* - * Assuming all cross the 512GB boundary: - * 1 page for level4 - * (2+2)*4 pages for kernel, param, cmd_line, and randomized kernel - * 2 pages for first 2M (video RAM: CONFIG_X86_VERBOSE_BOOTUP). - * Total is 19 pages. + * Total number of page tables kernel_add_identity_map() can allocate, + * including page tables consumed by startup_32(). + * + * Worst-case scenario: + * - 5-level paging needs 1 level5 table; + * - KASLR needs to map kernel, boot_params, cmdline and randomized kernel, + * assuming all of them cross 256T boundary: + * + 4*2 level4 table; + * + 4*2 level3 table; + * + 4*2 level2 table; + * - X86_VERBOSE_BOOTUP needs to map the first 2M (video RAM): + * + 1 level4 table; + * + 1 level3 table; + * + 1 level2 table; + * Total: 28 tables + * + * Add 4 spare table in case decompressor touches anything beyond what is + * accounted above. Warn if it happens. */ -# ifdef CONFIG_X86_VERBOSE_BOOTUP -# define BOOT_PGT_SIZE (19*4096) -# else /* !CONFIG_X86_VERBOSE_BOOTUP */ -# define BOOT_PGT_SIZE (17*4096) -# endif -# else /* !CONFIG_RANDOMIZE_BASE */ -# define BOOT_PGT_SIZE BOOT_INIT_PGT_SIZE -# endif +# define BOOT_PGT_SIZE_WARN (28*4096) +# define BOOT_PGT_SIZE (32*4096)

#else /* !CONFIG_X86_64 */ # define BOOT_STACK_SIZE 0x1000

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann arnd@arndb.de

[ Upstream commit b9080468caeddc58a91edd1c3a7d212ea82b0d1d ]

__symbol_put() is really meant as an internal helper and is not available when module unloading is disabled, unlike the previously used symbol_put():

samples/hw_breakpoint/data_breakpoint.c: In function 'hw_break_module_exit': samples/hw_breakpoint/data_breakpoint.c:73:9: error: implicit declaration of function '__symbol_put'; did you mean '__symbol_get'? [-Werror=implicit-function-declaration]

The hw_break_module_exit() function is not actually used when module unloading is disabled, but it still causes the build failure for an undefined identifier. Enclose this one call in an appropriate #ifdef to clarify what the requirement is. Leaving out the entire exit function would also work but feels less clar in this case.

Fixes: 910e230d5f1bb ("samples/hw_breakpoint: Fix kernel BUG 'invalid opcode: 0000'") Fixes: d8a84d33a4954 ("samples/hw_breakpoint: drop use of kallsyms_lookup_name()") Signed-off-by: Arnd Bergmann arnd@arndb.de Reviewed-by: Petr Mladek pmladek@suse.com Signed-off-by: Luis Chamberlain mcgrof@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- samples/hw_breakpoint/data_breakpoint.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/samples/hw_breakpoint/data_breakpoint.c b/samples/hw_breakpoint/data_breakpoint.c index 9debd128b2ab8..b99322f188e59 100644 --- a/samples/hw_breakpoint/data_breakpoint.c +++ b/samples/hw_breakpoint/data_breakpoint.c @@ -70,7 +70,9 @@ static int __init hw_break_module_init(void) static void __exit hw_break_module_exit(void) { unregister_wide_hw_breakpoint(sample_hbp); +#ifdef CONFIG_MODULE_UNLOAD __symbol_put(ksym_name); +#endif printk(KERN_INFO "HW Breakpoint for %s write uninstalled\n", ksym_name); }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Trond Myklebust trond.myklebust@hammerspace.com

commit e86fcf0820d914389b46658a5a7e8969c3af2d53 upstream.

This reverts commit 0701214cd6e66585a999b132eb72ae0489beb724.

The premise of this commit was incorrect. There are exactly 2 cases where rpcauth_checkverf() will return an error:

1) If there was an XDR decode problem (i.e. garbage data). 2) If gss_validate() had a problem verifying the RPCSEC_GSS MIC.

In the second case, there are again 2 subcases:

a) The GSS context expires, in which case gss_validate() will force a new context negotiation on retry by invalidating the cred. b) The sequence number check failed because an RPC call timed out, and the client retransmitted the request using a new sequence number, as required by RFC2203.

In neither subcase is this a fatal error.

Reported-by: Russell Cattelan cattelan@thebarn.com Fixes: 0701214cd6e6 ("SUNRPC: Fail faster on bad verifier") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sunrpc/clnt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -2710,7 +2710,7 @@ out_unparsable:

out_verifier: trace_rpc_bad_verifier(task); - goto out_err; + goto out_garbage;

out_msg_denied: error = -EACCES;

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Amir Goldstein amir73il@gmail.com

commit ab048302026d7701e7fbd718917e0dbcff0c4223 upstream.

Some local filesystems support setting persistent fileattr flags (e.g. FS_NOATIME_FL) on directories and regular files via ioctl. Some of those persistent fileattr flags are reflected to vfs as in-memory inode flags (e.g. S_NOATIME).

Overlayfs uses the in-memory inode flags (e.g. S_NOATIME) on a lower file as an indication that a the lower file may have persistent inode fileattr flags (e.g. FS_NOATIME_FL) that need to be copied to upper file.

However, in some cases, the S_NOATIME in-memory flag could be a false indication for persistent FS_NOATIME_FL fileattr. For example, with NFS and FUSE lower fs, as was the case in the two bug reports, the S_NOATIME flag is set unconditionally for all inodes.

Users cannot set persistent fileattr flags on symlinks and special files, but in some local fs, such as ext4/btrfs/tmpfs, the FS_NOATIME_FL fileattr flag are inheritted to symlinks and special files from parent directory.

In both cases described above, when lower symlink has the S_NOATIME flag, overlayfs will try to copy the symlink's fileattrs and fail with error ENOXIO, because it could not open the symlink for the ioctl security hook.

To solve this failure, do not attempt to copyup fileattrs for anything other than directories and regular files.

Reported-by: Ruiwen Zhao ruiwen@google.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217850 Fixes: 72db82115d2b ("ovl: copy up sync/noatime fileattr flags") Cc: stable@vger.kernel.org # v5.15 Reviewed-by: Miklos Szeredi miklos@szeredi.hu Signed-off-by: Amir Goldstein amir73il@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/overlayfs/copy_up.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -580,7 +580,8 @@ static int ovl_copy_up_metadata(struct o if (err) return err;

- if (inode->i_flags & OVL_COPY_I_FLAGS_MASK) { + if (inode->i_flags & OVL_COPY_I_FLAGS_MASK && + (S_ISREG(c->stat.mode) || S_ISDIR(c->stat.mode))) { /* * Copy the fileattr inode flags that are the source of already * copied i_flags

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Pavel Begunkov asml.silence@gmail.com

commit c21a8027ad8a68c340d0d58bf1cc61dcb0bc4d2f upstream.

When using selected buffer feature, io_uring delays data iter setup until later. If io_setup_async_msg() is called before that it might see not correctly setup iterator. Pre-init nr_segs and judge from its state whether we repointing.

Cc: stable@vger.kernel.org Reported-by: syzbot+a4c6e5ef999b68b26ed1@syzkaller.appspotmail.com Fixes: 0455d4ccec548 ("io_uring: add POLL_FIRST support for send/sendmsg and recv/recvmsg") Signed-off-by: Pavel Begunkov asml.silence@gmail.com Link: https://lore.kernel.org/r/0000000000002770be06053c7757@google.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- io_uring/net.c | 5 +++++ 1 file changed, 5 insertions(+)

--- a/io_uring/net.c +++ b/io_uring/net.c @@ -170,6 +170,10 @@ static int io_setup_async_msg(struct io_ memcpy(async_msg, kmsg, sizeof(*kmsg)); if (async_msg->msg.msg_name) async_msg->msg.msg_name = &async_msg->addr; + + if ((req->flags & REQ_F_BUFFER_SELECT) && !async_msg->msg.msg_iter.nr_segs) + return -EAGAIN; + /* if were using fast_iov, set it to the new one */ if (!kmsg->free_iov) { size_t fast_idx = kmsg->msg.msg_iter.iov - kmsg->fast_iov; @@ -529,6 +533,7 @@ static int io_recvmsg_copy_hdr(struct io struct io_async_msghdr *iomsg) { iomsg->msg.msg_name = &iomsg->addr; + iomsg->msg.msg_iter.nr_segs = 0;

#ifdef CONFIG_COMPAT if (req->ctx->compat)

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Mariusz Tkaczyk mariusz.tkaczyk@linux.intel.com

commit c8870379a21fbd9ad14ca36204ccfbe9d25def43 upstream.

If there are multiple arrays in system and one mddevice is marked with MD_DELETED and md_seq_next() is called in the middle of removal then it _get()s proper device but it may _put() deleted one. As a result, active counter may never be zeroed for mddevice and it cannot be removed.

Put the device which has been _get with previous md_seq_next() call.

Cc: stable@vger.kernel.org Fixes: 12a6caf27324 ("md: only delete entries from all_mddevs when the disk is freed") Reported-by: AceLan Kao acelan@gmail.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217798 Cc: Yu Kuai yukuai3@huawei.com Signed-off-by: Mariusz Tkaczyk mariusz.tkaczyk@linux.intel.com Signed-off-by: Song Liu song@kernel.org Link: https://lore.kernel.org/r/20230914152416.10819-1-mariusz.tkaczyk@linux.intel... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/md.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8228,7 +8228,7 @@ static void *md_seq_next(struct seq_file spin_unlock(&all_mddevs_lock);

if (to_put) - mddev_put(mddev); + mddev_put(to_put); return next_mddev;

}

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jens Axboe axboe@kernel.dk

commit a9ce385344f916cd1c36a33905e564f5581beae9 upstream.

dm looks up the table for IO based on the request type, with an assumption that if the request is marked REQ_NOWAIT, it's fine to attempt to submit that IO while under RCU read lock protection. This is not OK, as REQ_NOWAIT just means that we should not be sleeping waiting on other IO, it does not mean that we can't potentially schedule.

A simple test case demonstrates this quite nicely:

int main(int argc, char *argv[]) { struct iovec iov; int fd;

fd = open("/dev/dm-0", O_RDONLY | O_DIRECT); posix_memalign(&iov.iov_base, 4096, 4096); iov.iov_len = 4096; preadv2(fd, &iov, 1, 0, RWF_NOWAIT); return 0; }

which will instantly spew:

BUG: sleeping function called from invalid context at include/linux/sched/mm.h:306 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5580, name: dm-nowait preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 INFO: lockdep is turned off. CPU: 7 PID: 5580 Comm: dm-nowait Not tainted 6.6.0-rc1-g39956d2dcd81 #132 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x11d/0x1b0 __might_resched+0x3c3/0x5e0 ? preempt_count_sub+0x150/0x150 mempool_alloc+0x1e2/0x390 ? mempool_resize+0x7d0/0x7d0 ? lock_sync+0x190/0x190 ? lock_release+0x4b7/0x670 ? internal_get_user_pages_fast+0x868/0x2d40 bio_alloc_bioset+0x417/0x8c0 ? bvec_alloc+0x200/0x200 ? internal_get_user_pages_fast+0xb8c/0x2d40 bio_alloc_clone+0x53/0x100 dm_submit_bio+0x27f/0x1a20 ? lock_release+0x4b7/0x670 ? blk_try_enter_queue+0x1a0/0x4d0 ? dm_dax_direct_access+0x260/0x260 ? rcu_is_watching+0x12/0xb0 ? blk_try_enter_queue+0x1cc/0x4d0 __submit_bio+0x239/0x310 ? __bio_queue_enter+0x700/0x700 ? kvm_clock_get_cycles+0x40/0x60 ? ktime_get+0x285/0x470 submit_bio_noacct_nocheck+0x4d9/0xb80 ? should_fail_request+0x80/0x80 ? preempt_count_sub+0x150/0x150 ? lock_release+0x4b7/0x670 ? __bio_add_page+0x143/0x2d0 ? iov_iter_revert+0x27/0x360 submit_bio_noacct+0x53e/0x1b30 submit_bio_wait+0x10a/0x230 ? submit_bio_wait_endio+0x40/0x40 __blkdev_direct_IO_simple+0x4f8/0x780 ? blkdev_bio_end_io+0x4c0/0x4c0 ? stack_trace_save+0x90/0xc0 ? __bio_clone+0x3c0/0x3c0 ? lock_release+0x4b7/0x670 ? lock_sync+0x190/0x190 ? atime_needs_update+0x3bf/0x7e0 ? timestamp_truncate+0x21b/0x2d0 ? inode_owner_or_capable+0x240/0x240 blkdev_direct_IO.part.0+0x84a/0x1810 ? rcu_is_watching+0x12/0xb0 ? lock_release+0x4b7/0x670 ? blkdev_read_iter+0x40d/0x530 ? reacquire_held_locks+0x4e0/0x4e0 ? __blkdev_direct_IO_simple+0x780/0x780 ? rcu_is_watching+0x12/0xb0 ? __mark_inode_dirty+0x297/0xd50 ? preempt_count_add+0x72/0x140 blkdev_read_iter+0x2a4/0x530 do_iter_readv_writev+0x2f2/0x3c0 ? generic_copy_file_range+0x1d0/0x1d0 ? fsnotify_perm.part.0+0x25d/0x630 ? security_file_permission+0xd8/0x100 do_iter_read+0x31b/0x880 ? import_iovec+0x10b/0x140 vfs_readv+0x12d/0x1a0 ? vfs_iter_read+0xb0/0xb0 ? rcu_is_watching+0x12/0xb0 ? rcu_is_watching+0x12/0xb0 ? lock_release+0x4b7/0x670 do_preadv+0x1b3/0x260 ? do_readv+0x370/0x370 __x64_sys_preadv2+0xef/0x150 do_syscall_64+0x39/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5af41ad806 Code: 41 54 41 89 fc 55 44 89 c5 53 48 89 cb 48 83 ec 18 80 3d e4 dd 0d 00 00 74 7a 45 89 c1 49 89 ca 45 31 c0 b8 47 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 be 00 00 00 48 85 c0 79 4a 48 8b 0d da 55 RSP: 002b:00007ffd3145c7f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000147 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5af41ad806 RDX: 0000000000000001 RSI: 00007ffd3145c850 RDI: 0000000000000003 RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000008 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00007ffd3145c850 R14: 000055f5f0431dd8 R15: 0000000000000001 </TASK>

where in fact it is dm itself that attempts to allocate a bio clone with GFP_NOIO under the rcu read lock, regardless of the request type.

Fix this by getting rid of the special casing for REQ_NOWAIT, and just use the normal SRCU protected table lookup. Get rid of the bio based table locking helpers at the same time, as they are now unused.

Cc: stable@vger.kernel.org Fixes: 563a225c9fd2 ("dm: introduce dm_{get,put}_live_table_bio called from dm_submit_bio") Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Mike Snitzer snitzer@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/dm.c | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-)

--- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -707,24 +707,6 @@ static void dm_put_live_table_fast(struc rcu_read_unlock(); }

-static inline struct dm_table *dm_get_live_table_bio(struct mapped_device *md, - int *srcu_idx, blk_opf_t bio_opf) -{ - if (bio_opf & REQ_NOWAIT) - return dm_get_live_table_fast(md); - else - return dm_get_live_table(md, srcu_idx); -} - -static inline void dm_put_live_table_bio(struct mapped_device *md, int srcu_idx, - blk_opf_t bio_opf) -{ - if (bio_opf & REQ_NOWAIT) - dm_put_live_table_fast(md); - else - dm_put_live_table(md, srcu_idx); -} - static char *_dm_claim_ptr = "I belong to device-mapper";

/* @@ -1805,9 +1787,8 @@ static void dm_submit_bio(struct bio *bi struct mapped_device *md = bio->bi_bdev->bd_disk->private_data; int srcu_idx; struct dm_table *map; - blk_opf_t bio_opf = bio->bi_opf;

- map = dm_get_live_table_bio(md, &srcu_idx, bio_opf); + map = dm_get_live_table(md, &srcu_idx);

/* If suspended, or map not yet available, queue this IO for later */ if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) || @@ -1823,7 +1804,7 @@ static void dm_submit_bio(struct bio *bi

dm_split_and_process_bio(md, map, bio); out: - dm_put_live_table_bio(md, srcu_idx, bio_opf); + dm_put_live_table(md, srcu_idx); }

static bool dm_poll_dm_io(struct dm_io *io, struct io_comp_batch *iob,

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Qu Wenruo wqu@suse.com

commit 5e0e879926c1ce7e1f5e0dfaacaf2d105f7d8a05 upstream.

[BUG] After commit 72a69cd03082 ("btrfs: subpage: pack all subpage bitmaps into a larger bitmap"), the DEBUG section of btree_dirty_folio() would no longer compile.

[CAUSE] If DEBUG is defined, we would do extra checks for btree_dirty_folio(), mostly to make sure the range we marked dirty has an extent buffer and that extent buffer is dirty.

For subpage, we need to iterate through all the extent buffers covered by that page range, and make sure they all matches the criteria.

However commit 72a69cd03082 ("btrfs: subpage: pack all subpage bitmaps into a larger bitmap") changes how we store the bitmap, we pack all the 16 bits bitmaps into a larger bitmap, which would save some space.

This means we no longer have btrfs_subpage::dirty_bitmap, instead the dirty bitmap is starting at btrfs_subpage_info::dirty_offset, and has a length of btrfs_subpage_info::bitmap_nr_bits.

[FIX] Although I'm not sure if it still makes sense to maintain such code, at least let it compile.

This patch would let us test the bits one by one through the bitmaps.

CC: stable@vger.kernel.org # 6.1+ Signed-off-by: Qu Wenruo wqu@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/disk-io.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)

--- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -859,6 +859,7 @@ static bool btree_dirty_folio(struct add struct folio *folio) { struct btrfs_fs_info *fs_info = btrfs_sb(mapping->host->i_sb); + struct btrfs_subpage_info *spi = fs_info->subpage_info; struct btrfs_subpage *subpage; struct extent_buffer *eb; int cur_bit = 0; @@ -872,18 +873,19 @@ static bool btree_dirty_folio(struct add btrfs_assert_tree_write_locked(eb); return filemap_dirty_folio(mapping, folio); } + + ASSERT(spi); subpage = folio_get_private(folio);

- ASSERT(subpage->dirty_bitmap); - while (cur_bit < BTRFS_SUBPAGE_BITMAP_SIZE) { + for (cur_bit = spi->dirty_offset; + cur_bit < spi->dirty_offset + spi->bitmap_nr_bits; + cur_bit++) { unsigned long flags; u64 cur; - u16 tmp = (1 << cur_bit);

spin_lock_irqsave(&subpage->lock, flags); - if (!(tmp & subpage->dirty_bitmap)) { + if (!test_bit(cur_bit, subpage->bitmaps)) { spin_unlock_irqrestore(&subpage->lock, flags); - cur_bit++; continue; } spin_unlock_irqrestore(&subpage->lock, flags); @@ -896,7 +898,7 @@ static bool btree_dirty_folio(struct add btrfs_assert_tree_write_locked(eb); free_extent_buffer(eb);

- cur_bit += (fs_info->nodesize >> fs_info->sectorsize_bits); + cur_bit += (fs_info->nodesize >> fs_info->sectorsize_bits) - 1; } return filemap_dirty_folio(mapping, folio); }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Josef Bacik josef@toxicpanda.com

commit 4ca8e03cf2bfaeef7c85939fa1ea0c749cd116ab upstream.

If we do fast tree logging we increment a counter on the current transaction for every ordered extent we need to wait for. This means we expect the transaction to still be there when we clear pending on the ordered extent. However if we happen to abort the transaction and clean it up, there could be no running transaction, and thus we'll trip the "ASSERT(trans)" check. This is obviously incorrect, and the code properly deals with the case that the transaction doesn't exist. Fix this ASSERT() to only fire if there's no trans and we don't have BTRFS_FS_ERROR() set on the file system.

CC: stable@vger.kernel.org # 4.14+ Reviewed-by: Filipe Manana fdmanana@suse.com Signed-off-by: Josef Bacik josef@toxicpanda.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/ordered-data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -580,7 +580,7 @@ void btrfs_remove_ordered_extent(struct refcount_inc(&trans->use_count); spin_unlock(&fs_info->trans_lock);

- ASSERT(trans); + ASSERT(trans || BTRFS_FS_ERROR(fs_info)); if (trans) { if (atomic_dec_and_test(&trans->pending_ordered)) wake_up(&trans->pending_wait);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Steven Rostedt (Google) rostedt@goodmis.org

commit e5c624f027ac74f97e97c8f36c69228ac9f1102d upstream.

The event inject files add events for a specific trace array. For an instance, if the file is opened and the instance is deleted, reading or writing to the file will cause a use after free.

Up the ref count of the trace_array when a event inject file is opened.

Link: https://lkml.kernel.org/r/20230907024804.292337868@goodmis.org Link: https://lore.kernel.org/all/1cb3aee2-19af-c472-e265-05176fe9bd84@huawei.com/

Cc: stable@vger.kernel.org Cc: Masami Hiramatsu mhiramat@kernel.org Cc: Mark Rutland mark.rutland@arm.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Zheng Yejian zhengyejian1@huawei.com Fixes: 6c3edaf9fd6a ("tracing: Introduce trace event injection") Tested-by: Linux Kernel Functional Testing lkft@linaro.org Tested-by: Naresh Kamboju naresh.kamboju@linaro.org Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/trace/trace_events_inject.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/kernel/trace/trace_events_inject.c +++ b/kernel/trace/trace_events_inject.c @@ -328,7 +328,8 @@ event_inject_read(struct file *file, cha }

const struct file_operations event_inject_fops = { - .open = tracing_open_generic, + .open = tracing_open_file_tr, .read = event_inject_read, .write = event_inject_write, + .release = tracing_release_file_tr, };

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Steven Rostedt (Google) rostedt@goodmis.org

commit 9b37febc578b2e1ad76a105aab11d00af5ec3d27 upstream.

The current_trace updates the trace array tracer. For an instance, if the file is opened and the instance is deleted, reading or writing to the file will cause a use after free.

Up the ref count of the trace array when current_trace is opened.

Link: https://lkml.kernel.org/r/20230907024803.877687227@goodmis.org Link: https://lore.kernel.org/all/1cb3aee2-19af-c472-e265-05176fe9bd84@huawei.com/

Cc: stable@vger.kernel.org Cc: Masami Hiramatsu mhiramat@kernel.org Cc: Mark Rutland mark.rutland@arm.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Zheng Yejian zhengyejian1@huawei.com Fixes: 8530dec63e7b4 ("tracing: Add tracing_check_open_get_tr()") Tested-by: Linux Kernel Functional Testing lkft@linaro.org Tested-by: Naresh Kamboju naresh.kamboju@linaro.org Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/trace/trace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -7708,10 +7708,11 @@ static const struct file_operations trac #endif

static const struct file_operations set_tracer_fops = { - .open = tracing_open_generic, + .open = tracing_open_generic_tr, .read = tracing_set_trace_read, .write = tracing_set_trace_write, .llseek = generic_file_llseek, + .release = tracing_release_generic_tr, };

static const struct file_operations tracing_pipe_fops = {

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Ondrej Mosnacek omosnace@redhat.com

commit ccf1dab96be4caed7c5235b1cfdb606ac161b996 upstream.

selinux_set_mnt_opts() relies on the fact that the mount options pointer is always NULL when all options are unset (specifically in its !selinux_initialized() branch. However, the new selinux_fs_context_submount() hook breaks this rule by allocating a new structure even if no options are set. That causes any submount created before a SELinux policy is loaded to be rejected in selinux_set_mnt_opts().

Fix this by making selinux_fs_context_submount() leave fc->security set to NULL when there are no options to be copied from the reference superblock.

Cc: stable@vger.kernel.org Reported-by: Adam Williamson awilliam@redhat.com Link: https://bugzilla.redhat.com/show_bug.cgi?id=2236345 Fixes: d80a8f1b58c2 ("vfs, security: Fix automount superblock LSM init problem, preventing NFS sb sharing") Signed-off-by: Ondrej Mosnacek omosnace@redhat.com Reviewed-by: Jeff Layton jlayton@kernel.org Signed-off-by: Paul Moore paul@paul-moore.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/selinux/hooks.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2769,14 +2769,20 @@ static int selinux_umount(struct vfsmoun static int selinux_fs_context_submount(struct fs_context *fc, struct super_block *reference) { - const struct superblock_security_struct *sbsec; + const struct superblock_security_struct *sbsec = selinux_superblock(reference); struct selinux_mnt_opts *opts;

+ /* + * Ensure that fc->security remains NULL when no options are set + * as expected by selinux_set_mnt_opts(). + */ + if (!(sbsec->flags & (FSCONTEXT_MNT|CONTEXT_MNT|DEFCONTEXT_MNT))) + return 0; + opts = kzalloc(sizeof(*opts), GFP_KERNEL); if (!opts) return -ENOMEM;

- sbsec = selinux_superblock(reference); if (sbsec->flags & FSCONTEXT_MNT) opts->fscontext_sid = sbsec->sid; if (sbsec->flags & CONTEXT_MNT)

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Steven Rostedt (Google) rostedt@goodmis.org

commit 51aab5ffceb43e05119eb059048fd75765d2bc21 upstream.

The function tracefs_create_dir() was missing a lockdown check and was called by the RV code. This gave an inconsistent behavior of this function returning success while other tracefs functions failed. This caused the inode being freed by the wrong kmem_cache.

Link: https://lkml.kernel.org/r/20230905182711.692687042@goodmis.org Link: https://lore.kernel.org/all/202309050916.58201dc6-oliver.sang@intel.com/

Cc: stable@vger.kernel.org Cc: Masami Hiramatsu mhiramat@kernel.org Cc: Mark Rutland mark.rutland@arm.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Ajay Kaher akaher@vmware.com Cc: Ching-lin Yu chinglinyu@google.com Fixes: bf8e602186ec4 ("tracing: Do not create tracefs files if tracefs lockdown is in effect") Reported-by: kernel test robot oliver.sang@intel.com Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/tracefs/inode.c | 3 +++ 1 file changed, 3 insertions(+)

--- a/fs/tracefs/inode.c +++ b/fs/tracefs/inode.c @@ -556,6 +556,9 @@ static struct dentry *__create_dir(const */ struct dentry *tracefs_create_dir(const char *name, struct dentry *parent) { + if (security_locked_down(LOCKDOWN_TRACEFS)) + return NULL; + return __create_dir(name, parent, &simple_dir_inode_operations); }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Niklas Cassel niklas.cassel@wdc.com

commit 24e0e61db3cb86a66824531989f1df80e0939f26 upstream.

In AHCI 1.3.1, the register description for CAP.SSC: "When cleared to ‘0’, software must not allow the HBA to initiate transitions to the Slumber state via agressive link power management nor the PxCMD.ICC field in each port, and the PxSCTL.IPM field in each port must be programmed to disallow device initiated Slumber requests."

In AHCI 1.3.1, the register description for CAP.PSC: "When cleared to ‘0’, software must not allow the HBA to initiate transitions to the Partial state via agressive link power management nor the PxCMD.ICC field in each port, and the PxSCTL.IPM field in each port must be programmed to disallow device initiated Partial requests."

Ensure that we always set the corresponding bits in PxSCTL.IPM, such that a device is not allowed to initiate transitions to power states which are unsupported by the HBA.

DevSleep is always initiated by the HBA, however, for completeness, set the corresponding bit in PxSCTL.IPM such that agressive link power management cannot transition to DevSleep if DevSleep is not supported.

sata_link_scr_lpm() is used by libahci, ata_piix and libata-pmp. However, only libahci has the ability to read the CAP/CAP2 register to see if these features are supported. Therefore, in order to not introduce any regressions on ata_piix or libata-pmp, create flags that indicate that the respective feature is NOT supported. This way, the behavior for ata_piix and libata-pmp should remain unchanged.

This change is based on a patch originally submitted by Runa Guo-oc.

Signed-off-by: Niklas Cassel niklas.cassel@wdc.com Fixes: 1152b2617a6e ("libata: implement sata_link_scr_lpm() and make ata_dev_set_feature() global") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal dlemoal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ata/ahci.c | 9 +++++++++ drivers/ata/libata-sata.c | 19 ++++++++++++++++--- include/linux/libata.h | 4 ++++ 3 files changed, 29 insertions(+), 3 deletions(-)

--- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1884,6 +1884,15 @@ static int ahci_init_one(struct pci_dev else dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");

+ if (!(hpriv->cap & HOST_CAP_PART)) + host->flags |= ATA_HOST_NO_PART; + + if (!(hpriv->cap & HOST_CAP_SSC)) + host->flags |= ATA_HOST_NO_SSC; + + if (!(hpriv->cap2 & HOST_CAP2_SDS)) + host->flags |= ATA_HOST_NO_DEVSLP; + if (pi.flags & ATA_FLAG_EM) ahci_reset_em(host);

--- a/drivers/ata/libata-sata.c +++ b/drivers/ata/libata-sata.c @@ -394,10 +394,23 @@ int sata_link_scr_lpm(struct ata_link *l case ATA_LPM_MED_POWER_WITH_DIPM: case ATA_LPM_MIN_POWER_WITH_PARTIAL: case ATA_LPM_MIN_POWER: - if (ata_link_nr_enabled(link) > 0) - /* no restrictions on LPM transitions */ + if (ata_link_nr_enabled(link) > 0) { + /* assume no restrictions on LPM transitions */ scontrol &= ~(0x7 << 8); - else { + + /* + * If the controller does not support partial, slumber, + * or devsleep, then disallow these transitions. + */ + if (link->ap->host->flags & ATA_HOST_NO_PART) + scontrol |= (0x1 << 8); + + if (link->ap->host->flags & ATA_HOST_NO_SSC) + scontrol |= (0x2 << 8); + + if (link->ap->host->flags & ATA_HOST_NO_DEVSLP) + scontrol |= (0x4 << 8); + } else { /* empty port, power off */ scontrol &= ~0xf; scontrol |= (0x1 << 2); --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -216,6 +216,10 @@ enum { ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */ ATA_HOST_IGNORE_ATA = (1 << 3), /* Ignore ATA devices on this host. */

+ ATA_HOST_NO_PART = (1 << 4), /* Host does not support partial */ + ATA_HOST_NO_SSC = (1 << 5), /* Host does not support slumber */ + ATA_HOST_NO_DEVSLP = (1 << 6), /* Host does not support devslp */ + /* bits 24:31 of host->flags are reserved for LLD specific flags */

/* various lengths of time */

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Junxiao Bi junxiao.bi@oracle.com

commit 0b0747d507bffb827e40fc0f9fb5883fffc23477 upstream.

The following processes run into a deadlock. CPU 41 was waiting for CPU 29 to handle a CSD request while holding spinlock "crashdump_lock", but CPU 29 was hung by that spinlock with IRQs disabled.

PID: 17360 TASK: ffff95c1090c5c40 CPU: 41 COMMAND: "mrdiagd" !# 0 [ffffb80edbf37b58] __read_once_size at ffffffff9b871a40 include/linux/compiler.h:185:0 !# 1 [ffffb80edbf37b58] atomic_read at ffffffff9b871a40 arch/x86/include/asm/atomic.h:27:0 !# 2 [ffffb80edbf37b58] dump_stack at ffffffff9b871a40 lib/dump_stack.c:54:0 # 3 [ffffb80edbf37b78] csd_lock_wait_toolong at ffffffff9b131ad5 kernel/smp.c:364:0 # 4 [ffffb80edbf37b78] __csd_lock_wait at ffffffff9b131ad5 kernel/smp.c:384:0 # 5 [ffffb80edbf37bf8] csd_lock_wait at ffffffff9b13267a kernel/smp.c:394:0 # 6 [ffffb80edbf37bf8] smp_call_function_many at ffffffff9b13267a kernel/smp.c:843:0 # 7 [ffffb80edbf37c50] smp_call_function at ffffffff9b13279d kernel/smp.c:867:0 # 8 [ffffb80edbf37c50] on_each_cpu at ffffffff9b13279d kernel/smp.c:976:0 # 9 [ffffb80edbf37c78] flush_tlb_kernel_range at ffffffff9b085c4b arch/x86/mm/tlb.c:742:0 #10 [ffffb80edbf37cb8] __purge_vmap_area_lazy at ffffffff9b23a1e0 mm/vmalloc.c:701:0 #11 [ffffb80edbf37ce0] try_purge_vmap_area_lazy at ffffffff9b23a2cc mm/vmalloc.c:722:0 #12 [ffffb80edbf37ce0] free_vmap_area_noflush at ffffffff9b23a2cc mm/vmalloc.c:754:0 #13 [ffffb80edbf37cf8] free_unmap_vmap_area at ffffffff9b23bb3b mm/vmalloc.c:764:0 #14 [ffffb80edbf37cf8] remove_vm_area at ffffffff9b23bb3b mm/vmalloc.c:1509:0 #15 [ffffb80edbf37d18] __vunmap at ffffffff9b23bb8a mm/vmalloc.c:1537:0 #16 [ffffb80edbf37d40] vfree at ffffffff9b23bc85 mm/vmalloc.c:1612:0 #17 [ffffb80edbf37d58] megasas_free_host_crash_buffer [megaraid_sas] at ffffffffc020b7f2 drivers/scsi/megaraid/megaraid_sas_fusion.c:3932:0 #18 [ffffb80edbf37d80] fw_crash_state_store [megaraid_sas] at ffffffffc01f804d drivers/scsi/megaraid/megaraid_sas_base.c:3291:0 #19 [ffffb80edbf37dc0] dev_attr_store at ffffffff9b56dd7b drivers/base/core.c:758:0 #20 [ffffb80edbf37dd0] sysfs_kf_write at ffffffff9b326acf fs/sysfs/file.c:144:0 #21 [ffffb80edbf37de0] kernfs_fop_write at ffffffff9b325fd4 fs/kernfs/file.c:316:0 #22 [ffffb80edbf37e20] __vfs_write at ffffffff9b29418a fs/read_write.c:480:0 #23 [ffffb80edbf37ea8] vfs_write at ffffffff9b294462 fs/read_write.c:544:0 #24 [ffffb80edbf37ee8] SYSC_write at ffffffff9b2946ec fs/read_write.c:590:0 #25 [ffffb80edbf37ee8] SyS_write at ffffffff9b2946ec fs/read_write.c:582:0 #26 [ffffb80edbf37f30] do_syscall_64 at ffffffff9b003ca9 arch/x86/entry/common.c:298:0 #27 [ffffb80edbf37f58] entry_SYSCALL_64 at ffffffff9ba001b1 arch/x86/entry/entry_64.S:238:0

PID: 17355 TASK: ffff95c1090c3d80 CPU: 29 COMMAND: "mrdiagd" !# 0 [ffffb80f2d3c7d30] __read_once_size at ffffffff9b0f2ab0 include/linux/compiler.h:185:0 !# 1 [ffffb80f2d3c7d30] native_queued_spin_lock_slowpath at ffffffff9b0f2ab0 kernel/locking/qspinlock.c:368:0 # 2 [ffffb80f2d3c7d58] pv_queued_spin_lock_slowpath at ffffffff9b0f244b arch/x86/include/asm/paravirt.h:674:0 # 3 [ffffb80f2d3c7d58] queued_spin_lock_slowpath at ffffffff9b0f244b arch/x86/include/asm/qspinlock.h:53:0 # 4 [ffffb80f2d3c7d68] queued_spin_lock at ffffffff9b8961a6 include/asm-generic/qspinlock.h:90:0 # 5 [ffffb80f2d3c7d68] do_raw_spin_lock_flags at ffffffff9b8961a6 include/linux/spinlock.h:173:0 # 6 [ffffb80f2d3c7d68] __raw_spin_lock_irqsave at ffffffff9b8961a6 include/linux/spinlock_api_smp.h:122:0 # 7 [ffffb80f2d3c7d68] _raw_spin_lock_irqsave at ffffffff9b8961a6 kernel/locking/spinlock.c:160:0 # 8 [ffffb80f2d3c7d88] fw_crash_buffer_store [megaraid_sas] at ffffffffc01f8129 drivers/scsi/megaraid/megaraid_sas_base.c:3205:0 # 9 [ffffb80f2d3c7dc0] dev_attr_store at ffffffff9b56dd7b drivers/base/core.c:758:0 #10 [ffffb80f2d3c7dd0] sysfs_kf_write at ffffffff9b326acf fs/sysfs/file.c:144:0 #11 [ffffb80f2d3c7de0] kernfs_fop_write at ffffffff9b325fd4 fs/kernfs/file.c:316:0 #12 [ffffb80f2d3c7e20] __vfs_write at ffffffff9b29418a fs/read_write.c:480:0 #13 [ffffb80f2d3c7ea8] vfs_write at ffffffff9b294462 fs/read_write.c:544:0 #14 [ffffb80f2d3c7ee8] SYSC_write at ffffffff9b2946ec fs/read_write.c:590:0 #15 [ffffb80f2d3c7ee8] SyS_write at ffffffff9b2946ec fs/read_write.c:582:0 #16 [ffffb80f2d3c7f30] do_syscall_64 at ffffffff9b003ca9 arch/x86/entry/common.c:298:0 #17 [ffffb80f2d3c7f58] entry_SYSCALL_64 at ffffffff9ba001b1 arch/x86/entry/entry_64.S:238:0

The lock is used to synchronize different sysfs operations, it doesn't protect any resource that will be touched by an interrupt. Consequently it's not required to disable IRQs. Replace the spinlock with a mutex to fix the deadlock.

Signed-off-by: Junxiao Bi junxiao.bi@oracle.com Link: https://lore.kernel.org/r/20230828221018.19471-1-junxiao.bi@oracle.com Reviewed-by: Mike Christie michael.christie@oracle.com Cc: stable@vger.kernel.org Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/megaraid/megaraid_sas.h | 2 +- drivers/scsi/megaraid/megaraid_sas_base.c | 21 +++++++++------------ 2 files changed, 10 insertions(+), 13 deletions(-)

--- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2332,7 +2332,7 @@ struct megasas_instance { u32 support_morethan256jbod; /* FW support for more than 256 PD/JBOD */ bool use_seqnum_jbod_fp; /* Added for PD sequence */ bool smp_affinity_enable; - spinlock_t crashdump_lock; + struct mutex crashdump_lock;

struct megasas_register_set __iomem *reg_set; u32 __iomem *reply_post_host_index_addr[MR_MAX_MSIX_REG_ARRAY]; --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -3272,14 +3272,13 @@ fw_crash_buffer_store(struct device *cde struct megasas_instance *instance = (struct megasas_instance *) shost->hostdata; int val = 0; - unsigned long flags;

if (kstrtoint(buf, 0, &val) != 0) return -EINVAL;

- spin_lock_irqsave(&instance->crashdump_lock, flags); + mutex_lock(&instance->crashdump_lock); instance->fw_crash_buffer_offset = val; - spin_unlock_irqrestore(&instance->crashdump_lock, flags); + mutex_unlock(&instance->crashdump_lock); return strlen(buf); }

@@ -3294,24 +3293,23 @@ fw_crash_buffer_show(struct device *cdev unsigned long dmachunk = CRASH_DMA_BUF_SIZE; unsigned long chunk_left_bytes; unsigned long src_addr; - unsigned long flags; u32 buff_offset;

- spin_lock_irqsave(&instance->crashdump_lock, flags); + mutex_lock(&instance->crashdump_lock); buff_offset = instance->fw_crash_buffer_offset; if (!instance->crash_dump_buf || !((instance->fw_crash_state == AVAILABLE) || (instance->fw_crash_state == COPYING))) { dev_err(&instance->pdev->dev, "Firmware crash dump is not available\n"); - spin_unlock_irqrestore(&instance->crashdump_lock, flags); + mutex_unlock(&instance->crashdump_lock); return -EINVAL; }

if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { dev_err(&instance->pdev->dev, "Firmware crash dump offset is out of range\n"); - spin_unlock_irqrestore(&instance->crashdump_lock, flags); + mutex_unlock(&instance->crashdump_lock); return 0; }

@@ -3323,7 +3321,7 @@ fw_crash_buffer_show(struct device *cdev src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + (buff_offset % dmachunk); memcpy(buf, (void *)src_addr, size); - spin_unlock_irqrestore(&instance->crashdump_lock, flags); + mutex_unlock(&instance->crashdump_lock);

return size; } @@ -3348,7 +3346,6 @@ fw_crash_state_store(struct device *cdev struct megasas_instance *instance = (struct megasas_instance *) shost->hostdata; int val = 0; - unsigned long flags;

if (kstrtoint(buf, 0, &val) != 0) return -EINVAL; @@ -3362,9 +3359,9 @@ fw_crash_state_store(struct device *cdev instance->fw_crash_state = val;

if ((val == COPIED) || (val == COPY_ERROR)) { - spin_lock_irqsave(&instance->crashdump_lock, flags); + mutex_lock(&instance->crashdump_lock); megasas_free_host_crash_buffer(instance); - spin_unlock_irqrestore(&instance->crashdump_lock, flags); + mutex_unlock(&instance->crashdump_lock); if (val == COPY_ERROR) dev_info(&instance->pdev->dev, "application failed to " "copy Firmware crash dump\n"); @@ -7423,7 +7420,7 @@ static inline void megasas_init_ctrl_par init_waitqueue_head(&instance->int_cmd_wait_q); init_waitqueue_head(&instance->abort_cmd_wait_q);

- spin_lock_init(&instance->crashdump_lock); + mutex_init(&instance->crashdump_lock); spin_lock_init(&instance->mfi_pool_lock); spin_lock_init(&instance->hba_lock); spin_lock_init(&instance->stream_lock);

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Shida Zhang zhangshida@kylinos.cn

commit 7fda67e8c3ab6069f75888f67958a6d30454a9f6 upstream.

With the configuration PAGE_SIZE 64k and filesystem blocksize 64k, a problem occurred when more than 13 million files were directly created under a directory:

EXT4-fs error (device xx): ext4_dx_csum_set:492: inode #xxxx: comm xxxxx: dir seems corrupt? Run e2fsck -D. EXT4-fs error (device xx): ext4_dx_csum_verify:463: inode #xxxx: comm xxxxx: dir seems corrupt? Run e2fsck -D. EXT4-fs error (device xx): dx_probe:856: inode #xxxx: block 8188: comm xxxxx: Directory index failed checksum

When enough files are created, the fake_dirent->reclen will be 0xffff. it doesn't equal to the blocksize 65536, i.e. 0x10000.

But it is not the same condition when blocksize equals to 4k. when enough files are created, the fake_dirent->reclen will be 0x1000. it equals to the blocksize 4k, i.e. 0x1000.

The problem seems to be related to the limitation of the 16-bit field when the blocksize is set to 64k. To address this, helpers like ext4_rec_len_{from,to}_disk has already been introduced to complete the conversion between the encoded and the plain form of rec_len.

So fix this one by using the helper, and all the other in this file too.

Cc: stable@kernel.org Fixes: dbe89444042a ("ext4: Calculate and verify checksums for htree nodes") Suggested-by: Andreas Dilger adilger@dilger.ca Suggested-by: Darrick J. Wong djwong@kernel.org Signed-off-by: Shida Zhang zhangshida@kylinos.cn Reviewed-by: Andreas Dilger adilger@dilger.ca Reviewed-by: Darrick J. Wong djwong@kernel.org Link: https://lore.kernel.org/r/20230803060938.1929759-1-zhangshida@kylinos.cn Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/namei.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-)

--- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -343,17 +343,17 @@ static struct ext4_dir_entry_tail *get_d struct buffer_head *bh) { struct ext4_dir_entry_tail *t; + int blocksize = EXT4_BLOCK_SIZE(inode->i_sb);

#ifdef PARANOID struct ext4_dir_entry *d, *top;

d = (struct ext4_dir_entry *)bh->b_data; top = (struct ext4_dir_entry *)(bh->b_data + - (EXT4_BLOCK_SIZE(inode->i_sb) - - sizeof(struct ext4_dir_entry_tail))); - while (d < top && d->rec_len) + (blocksize - sizeof(struct ext4_dir_entry_tail))); + while (d < top && ext4_rec_len_from_disk(d->rec_len, blocksize)) d = (struct ext4_dir_entry *)(((void *)d) + - le16_to_cpu(d->rec_len)); + ext4_rec_len_from_disk(d->rec_len, blocksize));

if (d != top) return NULL; @@ -364,7 +364,8 @@ static struct ext4_dir_entry_tail *get_d #endif

if (t->det_reserved_zero1 || - le16_to_cpu(t->det_rec_len) != sizeof(struct ext4_dir_entry_tail) || + (ext4_rec_len_from_disk(t->det_rec_len, blocksize) != + sizeof(struct ext4_dir_entry_tail)) || t->det_reserved_zero2 || t->det_reserved_ft != EXT4_FT_DIR_CSUM) return NULL; @@ -445,13 +446,14 @@ static struct dx_countlimit *get_dx_coun struct ext4_dir_entry *dp; struct dx_root_info *root; int count_offset; + int blocksize = EXT4_BLOCK_SIZE(inode->i_sb); + unsigned int rlen = ext4_rec_len_from_disk(dirent->rec_len, blocksize);

- if (le16_to_cpu(dirent->rec_len) == EXT4_BLOCK_SIZE(inode->i_sb)) + if (rlen == blocksize) count_offset = 8; - else if (le16_to_cpu(dirent->rec_len) == 12) { + else if (rlen == 12) { dp = (struct ext4_dir_entry *)(((void *)dirent) + 12); - if (le16_to_cpu(dp->rec_len) != - EXT4_BLOCK_SIZE(inode->i_sb) - 12) + if (ext4_rec_len_from_disk(dp->rec_len, blocksize) != blocksize - 12) return NULL; root = (struct dx_root_info *)(((void *)dp + 12)); if (root->reserved_zero || @@ -1315,6 +1317,7 @@ static int dx_make_map(struct inode *dir unsigned int buflen = bh->b_size; char *base = bh->b_data; struct dx_hash_info h = *hinfo; + int blocksize = EXT4_BLOCK_SIZE(dir->i_sb);

if (ext4_has_metadata_csum(dir->i_sb)) buflen -= sizeof(struct ext4_dir_entry_tail); @@ -1335,11 +1338,12 @@ static int dx_make_map(struct inode *dir map_tail--; map_tail->hash = h.hash; map_tail->offs = ((char *) de - base)>>2; - map_tail->size = le16_to_cpu(de->rec_len); + map_tail->size = ext4_rec_len_from_disk(de->rec_len, + blocksize); count++; cond_resched(); } - de = ext4_next_entry(de, dir->i_sb->s_blocksize); + de = ext4_next_entry(de, blocksize); } return count; }

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman gregkh@linuxfoundation.org

This reverts commit 21ef9e11205fca43785eecf7d4a99528d4de5701 which is commit 86327e8eb94c52eca4f93cfece2e29d1bf52acbf upstream.

It breaks existing runc systems, as the tool always thinks the file should be present.

Reported-by: Jeremi Piotrowski jpiotrowski@linux.microsoft.com Link: https://lore.kernel.org/r/20230920081101.GA12096@linuxonhyperv3.guj3yctzbm1e... Cc: Michal Hocko mhocko@suse.com Cc: Shakeel Butt shakeelb@google.com Cc: Johannes Weiner hannes@cmpxchg.org Cc: Roman Gushchin roman.gushchin@linux.dev Cc: Muchun Song muchun.song@linux.dev Cc: Tejun Heo tj@kernel.org Cc: Andrew Morton akpm@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/admin-guide/cgroup-v1/memory.rst | 2 ++ mm/memcontrol.c | 10 ++++++++++ 2 files changed, 12 insertions(+)

--- a/Documentation/admin-guide/cgroup-v1/memory.rst +++ b/Documentation/admin-guide/cgroup-v1/memory.rst @@ -91,6 +91,8 @@ Brief summary of control files. memory.oom_control set/show oom controls. memory.numa_stat show the number of memory usage per numa node + memory.kmem.limit_in_bytes This knob is deprecated and writing to + it will return -ENOTSUPP. memory.kmem.usage_in_bytes show current kernel memory allocation memory.kmem.failcnt show the number of kernel memory usage hits limits --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3841,6 +3841,10 @@ static ssize_t mem_cgroup_write(struct k case _MEMSWAP: ret = mem_cgroup_resize_max(memcg, nr_pages, true); break; + case _KMEM: + /* kmem.limit_in_bytes is deprecated. */ + ret = -EOPNOTSUPP; + break; case _TCP: ret = memcg_update_tcp_max(memcg, nr_pages); break; @@ -5052,6 +5056,12 @@ static struct cftype mem_cgroup_legacy_f }, #endif { + .name = "kmem.limit_in_bytes", + .private = MEMFILE_PRIVATE(_KMEM, RES_LIMIT), + .write = mem_cgroup_write, + .read_u64 = mem_cgroup_read_u64, + }, + { .name = "kmem.usage_in_bytes", .private = MEMFILE_PRIVATE(_KMEM, RES_USAGE), .read_u64 = mem_cgroup_read_u64,

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jamal Hadi Salim jhs@mojatatu.com

commit 265b4da82dbf5df04bee5a5d46b7474b1aaf326a upstream.

The rsvp classifier has served us well for about a quarter of a century but has has not been getting much maintenance attention due to lack of known users.

Signed-off-by: Jamal Hadi Salim jhs@mojatatu.com Acked-by: Jiri Pirko jiri@nvidia.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Kyle Zeng zengyhkyle@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- net/sched/Kconfig | 28 net/sched/Makefile | 2 net/sched/cls_rsvp.c | 24 net/sched/cls_rsvp.h | 764 ---------- net/sched/cls_rsvp6.c | 24 tools/testing/selftests/tc-testing/tc-tests/filters/rsvp.json | 203 -- 6 files changed, 1045 deletions(-)

--- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -548,34 +548,6 @@ config CLS_U32_MARK help Say Y here to be able to use netfilter marks as u32 key.

-config NET_CLS_RSVP - tristate "IPv4 Resource Reservation Protocol (RSVP)" - select NET_CLS - help - The Resource Reservation Protocol (RSVP) permits end systems to - request a minimum and maximum data flow rate for a connection; this - is important for real time data such as streaming sound or video. - - Say Y here if you want to be able to classify outgoing packets based - on their RSVP requests. - - To compile this code as a module, choose M here: the - module will be called cls_rsvp. - -config NET_CLS_RSVP6 - tristate "IPv6 Resource Reservation Protocol (RSVP6)" - select NET_CLS - help - The Resource Reservation Protocol (RSVP) permits end systems to - request a minimum and maximum data flow rate for a connection; this - is important for real time data such as streaming sound or video. - - Say Y here if you want to be able to classify outgoing packets based - on their RSVP requests and you are using the IPv6 protocol. - - To compile this code as a module, choose M here: the - module will be called cls_rsvp6. - config NET_CLS_FLOW tristate "Flow classifier" select NET_CLS --- a/net/sched/Makefile +++ b/net/sched/Makefile @@ -69,8 +69,6 @@ obj-$(CONFIG_NET_SCH_TAPRIO) += sch_tapr obj-$(CONFIG_NET_CLS_U32) += cls_u32.o obj-$(CONFIG_NET_CLS_ROUTE4) += cls_route.o obj-$(CONFIG_NET_CLS_FW) += cls_fw.o -obj-$(CONFIG_NET_CLS_RSVP) += cls_rsvp.o -obj-$(CONFIG_NET_CLS_RSVP6) += cls_rsvp6.o obj-$(CONFIG_NET_CLS_BASIC) += cls_basic.o obj-$(CONFIG_NET_CLS_FLOW) += cls_flow.o obj-$(CONFIG_NET_CLS_CGROUP) += cls_cgroup.o --- a/net/sched/cls_rsvp.c +++ /dev/null @@ -1,24 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * net/sched/cls_rsvp.c Special RSVP packet classifier for IPv4. - * - * Authors: Alexey Kuznetsov, kuznet@ms2.inr.ac.ru - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/skbuff.h> -#include <net/ip.h> -#include <net/netlink.h> -#include <net/act_api.h> -#include <net/pkt_cls.h> - -#define RSVP_DST_LEN 1 -#define RSVP_ID "rsvp" -#define RSVP_OPS cls_rsvp_ops - -#include "cls_rsvp.h" -MODULE_LICENSE("GPL"); --- a/net/sched/cls_rsvp.h +++ /dev/null @@ -1,764 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * net/sched/cls_rsvp.h Template file for RSVPv[46] classifiers. - * - * Authors: Alexey Kuznetsov, kuznet@ms2.inr.ac.ru - */ - -/* - Comparing to general packet classification problem, - RSVP needs only several relatively simple rules: - - * (dst, protocol) are always specified, - so that we are able to hash them. - * src may be exact, or may be wildcard, so that - we can keep a hash table plus one wildcard entry. - * source port (or flow label) is important only if src is given. - - IMPLEMENTATION. - - We use a two level hash table: The top level is keyed by - destination address and protocol ID, every bucket contains a list - of "rsvp sessions", identified by destination address, protocol and - DPI(="Destination Port ID"): triple (key, mask, offset). - - Every bucket has a smaller hash table keyed by source address - (cf. RSVP flowspec) and one wildcard entry for wildcard reservations. - Every bucket is again a list of "RSVP flows", selected by - source address and SPI(="Source Port ID" here rather than - "security parameter index"): triple (key, mask, offset). - - - NOTE 1. All the packets with IPv6 extension headers (but AH and ESP) - and all fragmented packets go to the best-effort traffic class. - - - NOTE 2. Two "port id"'s seems to be redundant, rfc2207 requires - only one "Generalized Port Identifier". So that for classic - ah, esp (and udp,tcp) both *pi should coincide or one of them - should be wildcard. - - At first sight, this redundancy is just a waste of CPU - resources. But DPI and SPI add the possibility to assign different - priorities to GPIs. Look also at note 4 about tunnels below. - - - NOTE 3. One complication is the case of tunneled packets. - We implement it as following: if the first lookup - matches a special session with "tunnelhdr" value not zero, - flowid doesn't contain the true flow ID, but the tunnel ID (1...255). - In this case, we pull tunnelhdr bytes and restart lookup - with tunnel ID added to the list of keys. Simple and stupid 8)8) - It's enough for PIMREG and IPIP. - - - NOTE 4. Two GPIs make it possible to parse even GRE packets. - F.e. DPI can select ETH_P_IP (and necessary flags to make - tunnelhdr correct) in GRE protocol field and SPI matches - GRE key. Is it not nice? 8)8) - - - Well, as result, despite its simplicity, we get a pretty - powerful classification engine. */ - - -struct rsvp_head { - u32 tmap[256/32]; - u32 hgenerator; - u8 tgenerator; - struct rsvp_session __rcu *ht[256]; - struct rcu_head rcu; -}; - -struct rsvp_session { - struct rsvp_session __rcu *next; - __be32 dst[RSVP_DST_LEN]; - struct tc_rsvp_gpi dpi; - u8 protocol; - u8 tunnelid; - /* 16 (src,sport) hash slots, and one wildcard source slot */ - struct rsvp_filter __rcu *ht[16 + 1]; - struct rcu_head rcu; -}; - - -struct rsvp_filter { - struct rsvp_filter __rcu *next; - __be32 src[RSVP_DST_LEN]; - struct tc_rsvp_gpi spi; - u8 tunnelhdr; - - struct tcf_result res; - struct tcf_exts exts; - - u32 handle; - struct rsvp_session *sess; - struct rcu_work rwork; -}; - -static inline unsigned int hash_dst(__be32 *dst, u8 protocol, u8 tunnelid) -{ - unsigned int h = (__force __u32)dst[RSVP_DST_LEN - 1]; - - h ^= h>>16; - h ^= h>>8; - return (h ^ protocol ^ tunnelid) & 0xFF; -} - -static inline unsigned int hash_src(__be32 *src) -{ - unsigned int h = (__force __u32)src[RSVP_DST_LEN-1]; - - h ^= h>>16; - h ^= h>>8; - h ^= h>>4; - return h & 0xF; -} - -#define RSVP_APPLY_RESULT() \ -{ \ - int r = tcf_exts_exec(skb, &f->exts, res); \ - if (r < 0) \ - continue; \ - else if (r > 0) \ - return r; \ -} - -static int rsvp_classify(struct sk_buff *skb, const struct tcf_proto *tp, - struct tcf_result *res) -{ - struct rsvp_head *head = rcu_dereference_bh(tp->root); - struct rsvp_session *s; - struct rsvp_filter *f; - unsigned int h1, h2; - __be32 *dst, *src; - u8 protocol; - u8 tunnelid = 0; - u8 *xprt; -#if RSVP_DST_LEN == 4 - struct ipv6hdr *nhptr; - - if (!pskb_network_may_pull(skb, sizeof(*nhptr))) - return -1; - nhptr = ipv6_hdr(skb); -#else - struct iphdr *nhptr; - - if (!pskb_network_may_pull(skb, sizeof(*nhptr))) - return -1; - nhptr = ip_hdr(skb); -#endif -restart: - -#if RSVP_DST_LEN == 4 - src = &nhptr->saddr.s6_addr32[0]; - dst = &nhptr->daddr.s6_addr32[0]; - protocol = nhptr->nexthdr; - xprt = ((u8 *)nhptr) + sizeof(struct ipv6hdr); -#else - src = &nhptr->saddr; - dst = &nhptr->daddr; - protocol = nhptr->protocol; - xprt = ((u8 *)nhptr) + (nhptr->ihl<<2); - if (ip_is_fragment(nhptr)) - return -1; -#endif - - h1 = hash_dst(dst, protocol, tunnelid); - h2 = hash_src(src); - - for (s = rcu_dereference_bh(head->ht[h1]); s; - s = rcu_dereference_bh(s->next)) { - if (dst[RSVP_DST_LEN-1] == s->dst[RSVP_DST_LEN - 1] && - protocol == s->protocol && - !(s->dpi.mask & - (*(u32 *)(xprt + s->dpi.offset) ^ s->dpi.key)) && -#if RSVP_DST_LEN == 4 - dst[0] == s->dst[0] && - dst[1] == s->dst[1] && - dst[2] == s->dst[2] && -#endif - tunnelid == s->tunnelid) { - - for (f = rcu_dereference_bh(s->ht[h2]); f; - f = rcu_dereference_bh(f->next)) { - if (src[RSVP_DST_LEN-1] == f->src[RSVP_DST_LEN - 1] && - !(f->spi.mask & (*(u32 *)(xprt + f->spi.offset) ^ f->spi.key)) -#if RSVP_DST_LEN == 4 - && - src[0] == f->src[0] && - src[1] == f->src[1] && - src[2] == f->src[2] -#endif - ) { - *res = f->res; - RSVP_APPLY_RESULT(); - -matched: - if (f->tunnelhdr == 0) - return 0; - - tunnelid = f->res.classid; - nhptr = (void *)(xprt + f->tunnelhdr - sizeof(*nhptr)); - goto restart; - } - } - - /* And wildcard bucket... */ - for (f = rcu_dereference_bh(s->ht[16]); f; - f = rcu_dereference_bh(f->next)) { - *res = f->res; - RSVP_APPLY_RESULT(); - goto matched; - } - return -1; - } - } - return -1; -} - -static void rsvp_replace(struct tcf_proto *tp, struct rsvp_filter *n, u32 h) -{ - struct rsvp_head *head = rtnl_dereference(tp->root); - struct rsvp_session *s; - struct rsvp_filter __rcu **ins; - struct rsvp_filter *pins; - unsigned int h1 = h & 0xFF; - unsigned int h2 = (h >> 8) & 0xFF; - - for (s = rtnl_dereference(head->ht[h1]); s; - s = rtnl_dereference(s->next)) { - for (ins = &s->ht[h2], pins = rtnl_dereference(*ins); ; - ins = &pins->next, pins = rtnl_dereference(*ins)) { - if (pins->handle == h) { - RCU_INIT_POINTER(n->next, pins->next); - rcu_assign_pointer(*ins, n); - return; - } - } - } - - /* Something went wrong if we are trying to replace a non-existent - * node. Mind as well halt instead of silently failing. - */ - BUG_ON(1); -} - -static void *rsvp_get(struct tcf_proto *tp, u32 handle) -{ - struct rsvp_head *head = rtnl_dereference(tp->root); - struct rsvp_session *s; - struct rsvp_filter *f; - unsigned int h1 = handle & 0xFF; - unsigned int h2 = (handle >> 8) & 0xFF; - - if (h2 > 16) - return NULL; - - for (s = rtnl_dereference(head->ht[h1]); s; - s = rtnl_dereference(s->next)) { - for (f = rtnl_dereference(s->ht[h2]); f; - f = rtnl_dereference(f->next)) { - if (f->handle == handle) - return f; - } - } - return NULL; -} - -static int rsvp_init(struct tcf_proto *tp) -{ - struct rsvp_head *data; - - data = kzalloc(sizeof(struct rsvp_head), GFP_KERNEL); - if (data) { - rcu_assign_pointer(tp->root, data); - return 0; - } - return -ENOBUFS; -} - -static void __rsvp_delete_filter(struct rsvp_filter *f) -{ - tcf_exts_destroy(&f->exts); - tcf_exts_put_net(&f->exts); - kfree(f); -} - -static void rsvp_delete_filter_work(struct work_struct *work) -{ - struct rsvp_filter *f = container_of(to_rcu_work(work), - struct rsvp_filter, - rwork); - rtnl_lock(); - __rsvp_delete_filter(f); - rtnl_unlock(); -} - -static void rsvp_delete_filter(struct tcf_proto *tp, struct rsvp_filter *f) -{ - tcf_unbind_filter(tp, &f->res); - /* all classifiers are required to call tcf_exts_destroy() after rcu - * grace period, since converted-to-rcu actions are relying on that - * in cleanup() callback - */ - if (tcf_exts_get_net(&f->exts)) - tcf_queue_work(&f->rwork, rsvp_delete_filter_work); - else - __rsvp_delete_filter(f); -} - -static void rsvp_destroy(struct tcf_proto *tp, bool rtnl_held, - struct netlink_ext_ack *extack) -{ - struct rsvp_head *data = rtnl_dereference(tp->root); - int h1, h2; - - if (data == NULL) - return; - - for (h1 = 0; h1 < 256; h1++) { - struct rsvp_session *s; - - while ((s = rtnl_dereference(data->ht[h1])) != NULL) { - RCU_INIT_POINTER(data->ht[h1], s->next); - - for (h2 = 0; h2 <= 16; h2++) { - struct rsvp_filter *f; - - while ((f = rtnl_dereference(s->ht[h2])) != NULL) { - rcu_assign_pointer(s->ht[h2], f->next); - rsvp_delete_filter(tp, f); - } - } - kfree_rcu(s, rcu); - } - } - kfree_rcu(data, rcu); -} - -static int rsvp_delete(struct tcf_proto *tp, void *arg, bool *last, - bool rtnl_held, struct netlink_ext_ack *extack) -{ - struct rsvp_head *head = rtnl_dereference(tp->root); - struct rsvp_filter *nfp, *f = arg; - struct rsvp_filter __rcu **fp; - unsigned int h = f->handle; - struct rsvp_session __rcu **sp; - struct rsvp_session *nsp, *s = f->sess; - int i, h1; - - fp = &s->ht[(h >> 8) & 0xFF]; - for (nfp = rtnl_dereference(*fp); nfp; - fp = &nfp->next, nfp = rtnl_dereference(*fp)) { - if (nfp == f) { - RCU_INIT_POINTER(*fp, f->next); - rsvp_delete_filter(tp, f); - - /* Strip tree */ - - for (i = 0; i <= 16; i++) - if (s->ht[i]) - goto out; - - /* OK, session has no flows */ - sp = &head->ht[h & 0xFF]; - for (nsp = rtnl_dereference(*sp); nsp; - sp = &nsp->next, nsp = rtnl_dereference(*sp)) { - if (nsp == s) { - RCU_INIT_POINTER(*sp, s->next); - kfree_rcu(s, rcu); - goto out; - } - } - - break; - } - } - -out: - *last = true; - for (h1 = 0; h1 < 256; h1++) { - if (rcu_access_pointer(head->ht[h1])) { - *last = false; - break; - } - } - - return 0; -} - -static unsigned int gen_handle(struct tcf_proto *tp, unsigned salt) -{ - struct rsvp_head *data = rtnl_dereference(tp->root); - int i = 0xFFFF; - - while (i-- > 0) { - u32 h; - - if ((data->hgenerator += 0x10000) == 0) - data->hgenerator = 0x10000; - h = data->hgenerator|salt; - if (!rsvp_get(tp, h)) - return h; - } - return 0; -} - -static int tunnel_bts(struct rsvp_head *data) -{ - int n = data->tgenerator >> 5; - u32 b = 1 << (data->tgenerator & 0x1F); - - if (data->tmap[n] & b) - return 0; - data->tmap[n] |= b; - return 1; -} - -static void tunnel_recycle(struct rsvp_head *data) -{ - struct rsvp_session __rcu **sht = data->ht; - u32 tmap[256/32]; - int h1, h2; - - memset(tmap, 0, sizeof(tmap)); - - for (h1 = 0; h1 < 256; h1++) { - struct rsvp_session *s; - for (s = rtnl_dereference(sht[h1]); s; - s = rtnl_dereference(s->next)) { - for (h2 = 0; h2 <= 16; h2++) { - struct rsvp_filter *f; - - for (f = rtnl_dereference(s->ht[h2]); f; - f = rtnl_dereference(f->next)) { - if (f->tunnelhdr == 0) - continue; - data->tgenerator = f->res.classid; - tunnel_bts(data); - } - } - } - } - - memcpy(data->tmap, tmap, sizeof(tmap)); -} - -static u32 gen_tunnel(struct rsvp_head *data) -{ - int i, k; - - for (k = 0; k < 2; k++) { - for (i = 255; i > 0; i--) { - if (++data->tgenerator == 0) - data->tgenerator = 1; - if (tunnel_bts(data)) - return data->tgenerator; - } - tunnel_recycle(data); - } - return 0; -} - -static const struct nla_policy rsvp_policy[TCA_RSVP_MAX + 1] = { - [TCA_RSVP_CLASSID] = { .type = NLA_U32 }, - [TCA_RSVP_DST] = { .len = RSVP_DST_LEN * sizeof(u32) }, - [TCA_RSVP_SRC] = { .len = RSVP_DST_LEN * sizeof(u32) }, - [TCA_RSVP_PINFO] = { .len = sizeof(struct tc_rsvp_pinfo) }, -}; - -static int rsvp_change(struct net *net, struct sk_buff *in_skb, - struct tcf_proto *tp, unsigned long base, - u32 handle, struct nlattr **tca, - void **arg, u32 flags, - struct netlink_ext_ack *extack) -{ - struct rsvp_head *data = rtnl_dereference(tp->root); - struct rsvp_filter *f, *nfp; - struct rsvp_filter __rcu **fp; - struct rsvp_session *nsp, *s; - struct rsvp_session __rcu **sp; - struct tc_rsvp_pinfo *pinfo = NULL; - struct nlattr *opt = tca[TCA_OPTIONS]; - struct nlattr *tb[TCA_RSVP_MAX + 1]; - struct tcf_exts e; - unsigned int h1, h2; - __be32 *dst; - int err; - - if (opt == NULL) - return handle ? -EINVAL : 0; - - err = nla_parse_nested_deprecated(tb, TCA_RSVP_MAX, opt, rsvp_policy, - NULL); - if (err < 0) - return err; - - err = tcf_exts_init(&e, net, TCA_RSVP_ACT, TCA_RSVP_POLICE); - if (err < 0) - return err; - err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &e, flags, - extack); - if (err < 0) - goto errout2; - - f = *arg; - if (f) { - /* Node exists: adjust only classid */ - struct rsvp_filter *n; - - if (f->handle != handle && handle) - goto errout2; - - n = kmemdup(f, sizeof(*f), GFP_KERNEL); - if (!n) { - err = -ENOMEM; - goto errout2; - } - - err = tcf_exts_init(&n->exts, net, TCA_RSVP_ACT, - TCA_RSVP_POLICE); - if (err < 0) { - kfree(n); - goto errout2; - } - - if (tb[TCA_RSVP_CLASSID]) { - n->res.classid = nla_get_u32(tb[TCA_RSVP_CLASSID]); - tcf_bind_filter(tp, &n->res, base); - } - - tcf_exts_change(&n->exts, &e); - rsvp_replace(tp, n, handle); - return 0; - } - - /* Now more serious part... */ - err = -EINVAL; - if (handle) - goto errout2; - if (tb[TCA_RSVP_DST] == NULL) - goto errout2; - - err = -ENOBUFS; - f = kzalloc(sizeof(struct rsvp_filter), GFP_KERNEL); - if (f == NULL) - goto errout2; - - err = tcf_exts_init(&f->exts, net, TCA_RSVP_ACT, TCA_RSVP_POLICE); - if (err < 0) - goto errout; - h2 = 16; - if (tb[TCA_RSVP_SRC]) { - memcpy(f->src, nla_data(tb[TCA_RSVP_SRC]), sizeof(f->src)); - h2 = hash_src(f->src); - } - if (tb[TCA_RSVP_PINFO]) { - pinfo = nla_data(tb[TCA_RSVP_PINFO]); - f->spi = pinfo->spi; - f->tunnelhdr = pinfo->tunnelhdr; - } - if (tb[TCA_RSVP_CLASSID]) - f->res.classid = nla_get_u32(tb[TCA_RSVP_CLASSID]); - - dst = nla_data(tb[TCA_RSVP_DST]); - h1 = hash_dst(dst, pinfo ? pinfo->protocol : 0, pinfo ? pinfo->tunnelid : 0); - - err = -ENOMEM; - if ((f->handle = gen_handle(tp, h1 | (h2<<8))) == 0) - goto errout; - - if (f->tunnelhdr) { - err = -EINVAL; - if (f->res.classid > 255) - goto errout; - - err = -ENOMEM; - if (f->res.classid == 0 && - (f->res.classid = gen_tunnel(data)) == 0) - goto errout; - } - - for (sp = &data->ht[h1]; - (s = rtnl_dereference(*sp)) != NULL; - sp = &s->next) { - if (dst[RSVP_DST_LEN-1] == s->dst[RSVP_DST_LEN-1] && - pinfo && pinfo->protocol == s->protocol && - memcmp(&pinfo->dpi, &s->dpi, sizeof(s->dpi)) == 0 && -#if RSVP_DST_LEN == 4 - dst[0] == s->dst[0] && - dst[1] == s->dst[1] && - dst[2] == s->dst[2] && -#endif - pinfo->tunnelid == s->tunnelid) { - -insert: - /* OK, we found appropriate session */ - - fp = &s->ht[h2]; - - f->sess = s; - if (f->tunnelhdr == 0) - tcf_bind_filter(tp, &f->res, base); - - tcf_exts_change(&f->exts, &e); - - fp = &s->ht[h2]; - for (nfp = rtnl_dereference(*fp); nfp; - fp = &nfp->next, nfp = rtnl_dereference(*fp)) { - __u32 mask = nfp->spi.mask & f->spi.mask; - - if (mask != f->spi.mask) - break; - } - RCU_INIT_POINTER(f->next, nfp); - rcu_assign_pointer(*fp, f); - - *arg = f; - return 0; - } - } - - /* No session found. Create new one. */ - - err = -ENOBUFS; - s = kzalloc(sizeof(struct rsvp_session), GFP_KERNEL); - if (s == NULL) - goto errout; - memcpy(s->dst, dst, sizeof(s->dst)); - - if (pinfo) { - s->dpi = pinfo->dpi; - s->protocol = pinfo->protocol; - s->tunnelid = pinfo->tunnelid; - } - sp = &data->ht[h1]; - for (nsp = rtnl_dereference(*sp); nsp; - sp = &nsp->next, nsp = rtnl_dereference(*sp)) { - if ((nsp->dpi.mask & s->dpi.mask) != s->dpi.mask) - break; - } - RCU_INIT_POINTER(s->next, nsp); - rcu_assign_pointer(*sp, s); - - goto insert; - -errout: - tcf_exts_destroy(&f->exts); - kfree(f); -errout2: - tcf_exts_destroy(&e); - return err; -} - -static void rsvp_walk(struct tcf_proto *tp, struct tcf_walker *arg, - bool rtnl_held) -{ - struct rsvp_head *head = rtnl_dereference(tp->root); - unsigned int h, h1; - - if (arg->stop) - return; - - for (h = 0; h < 256; h++) { - struct rsvp_session *s; - - for (s = rtnl_dereference(head->ht[h]); s; - s = rtnl_dereference(s->next)) { - for (h1 = 0; h1 <= 16; h1++) { - struct rsvp_filter *f; - - for (f = rtnl_dereference(s->ht[h1]); f; - f = rtnl_dereference(f->next)) { - if (!tc_cls_stats_dump(tp, arg, f)) - return; - } - } - } - } -} - -static int rsvp_dump(struct net *net, struct tcf_proto *tp, void *fh, - struct sk_buff *skb, struct tcmsg *t, bool rtnl_held) -{ - struct rsvp_filter *f = fh; - struct rsvp_session *s; - struct nlattr *nest; - struct tc_rsvp_pinfo pinfo; - - if (f == NULL) - return skb->len; - s = f->sess; - - t->tcm_handle = f->handle; - - nest = nla_nest_start_noflag(skb, TCA_OPTIONS); - if (nest == NULL) - goto nla_put_failure; - - if (nla_put(skb, TCA_RSVP_DST, sizeof(s->dst), &s->dst)) - goto nla_put_failure; - pinfo.dpi = s->dpi; - pinfo.spi = f->spi; - pinfo.protocol = s->protocol; - pinfo.tunnelid = s->tunnelid; - pinfo.tunnelhdr = f->tunnelhdr; - pinfo.pad = 0; - if (nla_put(skb, TCA_RSVP_PINFO, sizeof(pinfo), &pinfo)) - goto nla_put_failure; - if (f->res.classid && - nla_put_u32(skb, TCA_RSVP_CLASSID, f->res.classid)) - goto nla_put_failure; - if (((f->handle >> 8) & 0xFF) != 16 && - nla_put(skb, TCA_RSVP_SRC, sizeof(f->src), f->src)) - goto nla_put_failure; - - if (tcf_exts_dump(skb, &f->exts) < 0) - goto nla_put_failure; - - nla_nest_end(skb, nest); - - if (tcf_exts_dump_stats(skb, &f->exts) < 0) - goto nla_put_failure; - return skb->len; - -nla_put_failure: - nla_nest_cancel(skb, nest); - return -1; -} - -static void rsvp_bind_class(void *fh, u32 classid, unsigned long cl, void *q, - unsigned long base) -{ - struct rsvp_filter *f = fh; - - tc_cls_bind_class(classid, cl, q, &f->res, base); -} - -static struct tcf_proto_ops RSVP_OPS __read_mostly = { - .kind = RSVP_ID, - .classify = rsvp_classify, - .init = rsvp_init, - .destroy = rsvp_destroy, - .get = rsvp_get, - .change = rsvp_change, - .delete = rsvp_delete, - .walk = rsvp_walk, - .dump = rsvp_dump, - .bind_class = rsvp_bind_class, - .owner = THIS_MODULE, -}; - -static int __init init_rsvp(void) -{ - return register_tcf_proto_ops(&RSVP_OPS); -} - -static void __exit exit_rsvp(void) -{ - unregister_tcf_proto_ops(&RSVP_OPS); -} - -module_init(init_rsvp) -module_exit(exit_rsvp) --- a/net/sched/cls_rsvp6.c +++ /dev/null @@ -1,24 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * net/sched/cls_rsvp6.c Special RSVP packet classifier for IPv6. - * - * Authors: Alexey Kuznetsov, kuznet@ms2.inr.ac.ru - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ipv6.h> -#include <linux/skbuff.h> -#include <net/act_api.h> -#include <net/pkt_cls.h> -#include <net/netlink.h> - -#define RSVP_DST_LEN 4 -#define RSVP_ID "rsvp6" -#define RSVP_OPS cls_rsvp6_ops - -#include "cls_rsvp.h" -MODULE_LICENSE("GPL"); --- a/tools/testing/selftests/tc-testing/tc-tests/filters/rsvp.json +++ /dev/null @@ -1,203 +0,0 @@ -[ - { - "id": "2141", - "name": "Add rsvp filter with tcp proto and specific IP address", - "category": [ - "filter", - "rsvp" - ], - "plugins": { - "requires": "nsPlugin" - }, - "setup": [ - "$TC qdisc add dev $DEV1 ingress" - ], - "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: protocol ip prio 1 rsvp ipproto tcp session 198.168.10.64", - "expExitCode": "0", - "verifyCmd": "$TC filter show dev $DEV1 parent ffff:", - "matchPattern": "^filter protocol ip pref [0-9]+ rsvp chain [0-9]+ fh 0x.*session 198.168.10.64 ipproto tcp", - "matchCount": "1", - "teardown": [ - "$TC qdisc del dev $DEV1 ingress" - ] - }, - { - "id": "5267", - "name": "Add rsvp filter with udp proto and specific IP address", - "category": [ - "filter", - "rsvp" - ], - "plugins": { - "requires": "nsPlugin" - }, - "setup": [ - "$TC qdisc add dev $DEV1 ingress" - ], - "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: protocol ip prio 1 rsvp ipproto udp session 1.1.1.1", - "expExitCode": "0", - "verifyCmd": "$TC filter show dev $DEV1 parent ffff:", - "matchPattern": "^filter protocol ip pref [0-9]+ rsvp chain [0-9]+ fh 0x.*session 1.1.1.1 ipproto udp", - "matchCount": "1", - "teardown": [ - "$TC qdisc del dev $DEV1 ingress" - ] - }, - { - "id": "2819", - "name": "Add rsvp filter with src ip and src port", - "category": [ - "filter", - "rsvp" - ], - "plugins": { - "requires": "nsPlugin" - }, - "setup": [ - "$TC qdisc add dev $DEV1 ingress" - ], - "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: protocol ip prio 1 rsvp ipproto udp session 1.1.1.1 sender 2.2.2.2/5021 classid 1:1", - "expExitCode": "0", - "verifyCmd": "$TC filter show dev $DEV1 parent ffff:", - "matchPattern": "^filter protocol ip pref [0-9]+ rsvp chain [0-9]+ fh 0x.*flowid 1:1 session 1.1.1.1 ipproto udp sender 2.2.2.2/5021", - "matchCount": "1", - "teardown": [ - "$TC qdisc del dev $DEV1 ingress" - ] - }, - { - "id": "c967", - "name": "Add rsvp filter with tunnelid and continue action", - "category": [ - "filter", - "rsvp" - ], - "plugins": { - "requires": "nsPlugin" - }, - "setup": [ - "$TC qdisc add dev $DEV1 ingress" - ], - "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: protocol ip prio 1 rsvp ipproto udp session 1.1.1.1 tunnelid 2 classid 1:1 action continue", - 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