May 2022 - Linux-stable-mirror

[PATCH MANUALSEL 4.19 1/2] KVM: x86: Handle SRCU initialization failure during page track init

by Sasha Levin

From: Haimin Zhang <tcs_kernel(a)tencent.com> [ Upstream commit eb7511bf9182292ef1df1082d23039e856d1ddfb ] Check the return of init_srcu_struct(), which can fail due to OOM, when initializing the page track mechanism. Lack of checking leads to a NULL pointer deref found by a modified syzkaller. Reported-by: TCS Robot <tcs_robot(a)tencent.com> Signed-off-by: Haimin Zhang <tcs_kernel(a)tencent.com> Message-Id: <1630636626-12262-1-git-send-email-tcs_kernel(a)tencent.com> [Move the call towards the beginning of kvm_arch_init_vm. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- arch/x86/include/asm/kvm_page_track.h | 2 +- arch/x86/kvm/page_track.c | 4 ++-- arch/x86/kvm/x86.c | 7 ++++++- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/kvm_page_track.h b/arch/x86/include/asm/kvm_page_track.h index 172f9749dbb2..5986bd4aacd6 100644 --- a/arch/x86/include/asm/kvm_page_track.h +++ b/arch/x86/include/asm/kvm_page_track.h @@ -46,7 +46,7 @@ struct kvm_page_track_notifier_node { struct kvm_page_track_notifier_node *node); }; -void kvm_page_track_init(struct kvm *kvm); +int kvm_page_track_init(struct kvm *kvm); void kvm_page_track_cleanup(struct kvm *kvm); void kvm_page_track_free_memslot(struct kvm_memory_slot *free, diff --git a/arch/x86/kvm/page_track.c b/arch/x86/kvm/page_track.c index 3052a59a3065..1f6b0d9b0c85 100644 --- a/arch/x86/kvm/page_track.c +++ b/arch/x86/kvm/page_track.c @@ -169,13 +169,13 @@ void kvm_page_track_cleanup(struct kvm *kvm) cleanup_srcu_struct(&head->track_srcu); } -void kvm_page_track_init(struct kvm *kvm) +int kvm_page_track_init(struct kvm *kvm) { struct kvm_page_track_notifier_head *head; head = &kvm->arch.track_notifier_head; - init_srcu_struct(&head->track_srcu); INIT_HLIST_HEAD(&head->track_notifier_list); + return init_srcu_struct(&head->track_srcu); } /* diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 417abc9ba1ad..70cb18f89029 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9039,9 +9039,15 @@ void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) { + int ret; + if (type) return -EINVAL; + ret = kvm_page_track_init(kvm); + if (ret) + return ret; + INIT_HLIST_HEAD(&kvm->arch.mask_notifier_list); INIT_LIST_HEAD(&kvm->arch.active_mmu_pages); INIT_LIST_HEAD(&kvm->arch.zapped_obsolete_pages); @@ -9068,7 +9074,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn); kvm_hv_init_vm(kvm); - kvm_page_track_init(kvm); kvm_mmu_init_vm(kvm); if (kvm_x86_ops->vm_init) -- 2.33.0

11 months, 1 week

4
4
0 0

FAILED: patch "[PATCH] bpf: Fix out of bounds access for ringbuf helpers" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 64620e0a1e712a778095bd35cbb277dc2259281f Mon Sep 17 00:00:00 2001 From: Daniel Borkmann <daniel(a)iogearbox.net> Date: Tue, 11 Jan 2022 14:43:41 +0000 Subject: [PATCH] bpf: Fix out of bounds access for ringbuf helpers Both bpf_ringbuf_submit() and bpf_ringbuf_discard() have ARG_PTR_TO_ALLOC_MEM in their bpf_func_proto definition as their first argument. They both expect the result from a prior bpf_ringbuf_reserve() call which has a return type of RET_PTR_TO_ALLOC_MEM_OR_NULL. Meaning, after a NULL check in the code, the verifier will promote the register type in the non-NULL branch to a PTR_TO_MEM and in the NULL branch to a known zero scalar. Generally, pointer arithmetic on PTR_TO_MEM is allowed, so the latter could have an offset. The ARG_PTR_TO_ALLOC_MEM expects a PTR_TO_MEM register type. However, the non- zero result from bpf_ringbuf_reserve() must be fed into either bpf_ringbuf_submit() or bpf_ringbuf_discard() but with the original offset given it will then read out the struct bpf_ringbuf_hdr mapping. The verifier missed to enforce a zero offset, so that out of bounds access can be triggered which could be used to escalate privileges if unprivileged BPF was enabled (disabled by default in kernel). Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") Reported-by: <tr3e.wang(a)gmail.com> (SecCoder Security Lab) Signed-off-by: Daniel Borkmann <daniel(a)iogearbox.net> Acked-by: John Fastabend <john.fastabend(a)gmail.com> Acked-by: Alexei Starovoitov <ast(a)kernel.org> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index e0b3f4d683eb..c72c57a6684f 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -5318,9 +5318,15 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg, case PTR_TO_BUF: case PTR_TO_BUF | MEM_RDONLY: case PTR_TO_STACK: + /* Some of the argument types nevertheless require a + * zero register offset. + */ + if (arg_type == ARG_PTR_TO_ALLOC_MEM) + goto force_off_check; break; /* All the rest must be rejected: */ default: +force_off_check: err = __check_ptr_off_reg(env, reg, regno, type == PTR_TO_BTF_ID); if (err < 0)

1 year, 1 month

3
19
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[PATCH] iio: afe: rescale: Fix logic bug

by Linus Walleij

When introducing support for processed channels I needed to invert the expression: if (!iio_channel_has_info(schan, IIO_CHAN_INFO_RAW) || !iio_channel_has_info(schan, IIO_CHAN_INFO_SCALE)) dev_err(dev, "source channel does not support raw/scale\n"); To the inverse, meaning detect when we can usse raw+scale rather than when we can not. This was the result: if (iio_channel_has_info(schan, IIO_CHAN_INFO_RAW) || iio_channel_has_info(schan, IIO_CHAN_INFO_SCALE)) dev_info(dev, "using raw+scale source channel\n"); Ooops. Spot the error. Yep old George Boole came up and bit me. That should be an &&. The current code "mostly works" because we have not run into systems supporting only raw but not scale or only scale but not raw, and I doubt there are few using the rescaler on anything such, but let's fix the logic. Cc: Liam Beguin <liambeguin(a)gmail.com> Cc: stable(a)vger.kernel.org Fixes: 53ebee949980 ("iio: afe: iio-rescale: Support processed channels") Signed-off-by: Linus Walleij <linus.walleij(a)linaro.org> --- drivers/iio/afe/iio-rescale.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/afe/iio-rescale.c b/drivers/iio/afe/iio-rescale.c index 7e511293d6d1..dc426e1484f0 100644 --- a/drivers/iio/afe/iio-rescale.c +++ b/drivers/iio/afe/iio-rescale.c @@ -278,7 +278,7 @@ static int rescale_configure_channel(struct device *dev, chan->ext_info = rescale->ext_info; chan->type = rescale->cfg->type; - if (iio_channel_has_info(schan, IIO_CHAN_INFO_RAW) || + if (iio_channel_has_info(schan, IIO_CHAN_INFO_RAW) && iio_channel_has_info(schan, IIO_CHAN_INFO_SCALE)) { dev_info(dev, "using raw+scale source channel\n"); } else if (iio_channel_has_info(schan, IIO_CHAN_INFO_PROCESSED)) { -- 2.35.3

1 year, 8 months

6
17
0 0

[PATCH 1/1] net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero

by Lee Jones

Currently, due to the sequential use of min_t() and clamp_t() macros, in cdc_ncm_check_tx_max(), if dwNtbOutMaxSize is not set, the logic sets tx_max to 0. This is then used to allocate the data area of the SKB requested later in cdc_ncm_fill_tx_frame(). This does not cause an issue presently because when memory is allocated during initialisation phase of SKB creation, more memory (512b) is allocated than is required for the SKB headers alone (320b), leaving some space (512b - 320b = 192b) for CDC data (172b). However, if more elements (for example 3 x u64 = [24b]) were added to one of the SKB header structs, say 'struct skb_shared_info', increasing its original size (320b [320b aligned]) to something larger (344b [384b aligned]), then suddenly the CDC data (172b) no longer fits in the spare SKB data area (512b - 384b = 128b). Consequently the SKB bounds checking semantics fails and panics: skbuff: skb_over_panic: text:ffffffff830a5b5f len:184 put:172 \ head:ffff888119227c00 data:ffff888119227c00 tail:0xb8 end:0x80 dev:<NULL> ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:110! RIP: 0010:skb_panic+0x14f/0x160 net/core/skbuff.c:106 <snip> Call Trace: <IRQ> skb_over_panic+0x2c/0x30 net/core/skbuff.c:115 skb_put+0x205/0x210 net/core/skbuff.c:1877 skb_put_zero include/linux/skbuff.h:2270 [inline] cdc_ncm_ndp16 drivers/net/usb/cdc_ncm.c:1116 [inline] cdc_ncm_fill_tx_frame+0x127f/0x3d50 drivers/net/usb/cdc_ncm.c:1293 cdc_ncm_tx_fixup+0x98/0xf0 drivers/net/usb/cdc_ncm.c:1514 By overriding the max value with the default CDC_NCM_NTB_MAX_SIZE_TX when not offered through the system provided params, we ensure enough data space is allocated to handle the CDC data, meaning no crash will occur. Cc: stable(a)vger.kernel.org Cc: Oliver Neukum <oliver(a)neukum.org> Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Jakub Kicinski <kuba(a)kernel.org> Cc: linux-usb(a)vger.kernel.org Cc: netdev(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Fixes: 289507d3364f9 ("net: cdc_ncm: use sysfs for rx/tx aggregation tuning") Signed-off-by: Lee Jones <lee.jones(a)linaro.org> --- drivers/net/usb/cdc_ncm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 24753a4da7e60..e303b522efb50 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -181,6 +181,8 @@ static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx) min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth32); max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)); + if (max == 0) + max = CDC_NCM_NTB_MAX_SIZE_TX; /* dwNtbOutMaxSize not set */ /* some devices set dwNtbOutMaxSize too low for the above default */ min = min(min, max); -- 2.34.0.384.gca35af8252-goog

2 years

6
13
0 0

[v4 PATCH] fs/proc: task_mmu.c: don't read mapcount for migration entry

by Yang Shi

The syzbot reported the below BUG: kernel BUG at include/linux/page-flags.h:785! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4392 Comm: syz-executor560 Not tainted 5.16.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:PageDoubleMap include/linux/page-flags.h:785 [inline] RIP: 0010:__page_mapcount+0x2d2/0x350 mm/util.c:744 Code: e8 d3 16 d1 ff 48 c7 c6 c0 00 b6 89 48 89 ef e8 94 4e 04 00 0f 0b e8 bd 16 d1 ff 48 c7 c6 60 01 b6 89 48 89 ef e8 7e 4e 04 00 <0f> 0b e8 a7 16 d1 ff 48 c7 c6 a0 01 b6 89 4c 89 f7 e8 68 4e 04 00 RSP: 0018:ffffc90002b6f7b8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888019619d00 RSI: ffffffff81a68c12 RDI: 0000000000000003 RBP: ffffea0001bdc2c0 R08: 0000000000000029 R09: 00000000ffffffff R10: ffffffff8903e29f R11: 00000000ffffffff R12: 00000000ffffffff R13: 00000000ffffea00 R14: ffffc90002b6fb30 R15: ffffea0001bd8001 FS: 00007faa2aefd700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff7e663318 CR3: 0000000018c6e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> page_mapcount include/linux/mm.h:837 [inline] smaps_account+0x470/0xb10 fs/proc/task_mmu.c:466 smaps_pte_entry fs/proc/task_mmu.c:538 [inline] smaps_pte_range+0x611/0x1250 fs/proc/task_mmu.c:601 walk_pmd_range mm/pagewalk.c:128 [inline] walk_pud_range mm/pagewalk.c:205 [inline] walk_p4d_range mm/pagewalk.c:240 [inline] walk_pgd_range mm/pagewalk.c:277 [inline] __walk_page_range+0xe23/0x1ea0 mm/pagewalk.c:379 walk_page_vma+0x277/0x350 mm/pagewalk.c:530 smap_gather_stats.part.0+0x148/0x260 fs/proc/task_mmu.c:768 smap_gather_stats fs/proc/task_mmu.c:741 [inline] show_smap+0xc6/0x440 fs/proc/task_mmu.c:822 seq_read_iter+0xbb0/0x1240 fs/seq_file.c:272 seq_read+0x3e0/0x5b0 fs/seq_file.c:162 vfs_read+0x1b5/0x600 fs/read_write.c:479 ksys_read+0x12d/0x250 fs/read_write.c:619 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7faa2af6c969 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007faa2aefd288 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007faa2aff4418 RCX: 00007faa2af6c969 RDX: 0000000000002025 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 00007faa2aff4410 R08: 00007faa2aefd700 R09: 0000000000000000 R10: 00007faa2aefd700 R11: 0000000000000246 R12: 00007faa2afc20ac R13: 00007fff7e6632bf R14: 00007faa2aefd400 R15: 0000000000022000 </TASK> Modules linked in: ---[ end trace 24ec93ff95e4ac3d ]--- RIP: 0010:PageDoubleMap include/linux/page-flags.h:785 [inline] RIP: 0010:__page_mapcount+0x2d2/0x350 mm/util.c:744 Code: e8 d3 16 d1 ff 48 c7 c6 c0 00 b6 89 48 89 ef e8 94 4e 04 00 0f 0b e8 bd 16 d1 ff 48 c7 c6 60 01 b6 89 48 89 ef e8 7e 4e 04 00 <0f> 0b e8 a7 16 d1 ff 48 c7 c6 a0 01 b6 89 4c 89 f7 e8 68 4e 04 00 RSP: 0018:ffffc90002b6f7b8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888019619d00 RSI: ffffffff81a68c12 RDI: 0000000000000003 RBP: ffffea0001bdc2c0 R08: 0000000000000029 R09: 00000000ffffffff R10: ffffffff8903e29f R11: 00000000ffffffff R12: 00000000ffffffff R13: 00000000ffffea00 R14: ffffc90002b6fb30 R15: ffffea0001bd8001 FS: 00007faa2aefd700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff7e663318 CR3: 0000000018c6e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 The reproducer was trying to reading /proc/$PID/smaps when calling MADV_FREE at the mean time. MADV_FREE may split THPs if it is called for partial THP. It may trigger the below race: CPU A CPU B ----- ----- smaps walk: MADV_FREE: page_mapcount() PageCompound() split_huge_page() page = compound_head(page) PageDoubleMap(page) When calling PageDoubleMap() this page is not a tail page of THP anymore so the BUG is triggered. This could be fixed by elevated refcount of the page before calling mapcount, but it prevents from counting migration entries, and it seems overkilling because the race just could happen when PMD is split so all PTE entries of tail pages are actually migration entries, and smaps_account() does treat migration entries as mapcount == 1 as Kirill pointed out. Add a new parameter for smaps_account() to tell this entry is migration entry then skip calling page_mapcount(). Don't skip getting mapcount for device private entries since they do track references with mapcount. Pagemap also has the similar issue although it was not reported. Fixed it as well. Fixes: e9b61f19858a ("thp: reintroduce split_huge_page()") Reported-by: syzbot+1f52b3a18d5633fa7f82(a)syzkaller.appspotmail.com Acked-by: David Hildenbrand <david(a)redhat.com> Cc: "Kirill A. Shutemov" <kirill.shutemov(a)linux.intel.com> Cc: Jann Horn <jannh(a)google.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Yang Shi <shy828301(a)gmail.com> --- v4: * s/Treated/Treat per David * Collected acked-by tag from David v3: * Fixed the fix tag, the one used by v2 was not accurate * Added comment about the risk calling page_mapcount() per David * Fix pagemap v2: * Added proper fix tag per Jann Horn * Rebased to the latest linus's tree fs/proc/task_mmu.c | 38 ++++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 18f8c3acbb85..bc2f46033231 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -440,7 +440,8 @@ static void smaps_page_accumulate(struct mem_size_stats *mss, } static void smaps_account(struct mem_size_stats *mss, struct page *page, - bool compound, bool young, bool dirty, bool locked) + bool compound, bool young, bool dirty, bool locked, + bool migration) { int i, nr = compound ? compound_nr(page) : 1; unsigned long size = nr * PAGE_SIZE; @@ -467,8 +468,15 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page, * page_count(page) == 1 guarantees the page is mapped exactly once. * If any subpage of the compound page mapped with PTE it would elevate * page_count(). + * + * The page_mapcount() is called to get a snapshot of the mapcount. + * Without holding the page lock this snapshot can be slightly wrong as + * we cannot always read the mapcount atomically. It is not safe to + * call page_mapcount() even with PTL held if the page is not mapped, + * especially for migration entries. Treat regular migration entries + * as mapcount == 1. */ - if (page_count(page) == 1) { + if ((page_count(page) == 1) || migration) { smaps_page_accumulate(mss, page, size, size << PSS_SHIFT, dirty, locked, true); return; @@ -517,6 +525,7 @@ static void smaps_pte_entry(pte_t *pte, unsigned long addr, struct vm_area_struct *vma = walk->vma; bool locked = !!(vma->vm_flags & VM_LOCKED); struct page *page = NULL; + bool migration = false; if (pte_present(*pte)) { page = vm_normal_page(vma, addr, *pte); @@ -536,8 +545,11 @@ static void smaps_pte_entry(pte_t *pte, unsigned long addr, } else { mss->swap_pss += (u64)PAGE_SIZE << PSS_SHIFT; } - } else if (is_pfn_swap_entry(swpent)) + } else if (is_pfn_swap_entry(swpent)) { + if (is_migration_entry(swpent)) + migration = true; page = pfn_swap_entry_to_page(swpent); + } } else { smaps_pte_hole_lookup(addr, walk); return; @@ -546,7 +558,8 @@ static void smaps_pte_entry(pte_t *pte, unsigned long addr, if (!page) return; - smaps_account(mss, page, false, pte_young(*pte), pte_dirty(*pte), locked); + smaps_account(mss, page, false, pte_young(*pte), pte_dirty(*pte), + locked, migration); } #ifdef CONFIG_TRANSPARENT_HUGEPAGE @@ -557,6 +570,7 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr, struct vm_area_struct *vma = walk->vma; bool locked = !!(vma->vm_flags & VM_LOCKED); struct page *page = NULL; + bool migration = false; if (pmd_present(*pmd)) { /* FOLL_DUMP will return -EFAULT on huge zero page */ @@ -564,8 +578,10 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr, } else if (unlikely(thp_migration_supported() && is_swap_pmd(*pmd))) { swp_entry_t entry = pmd_to_swp_entry(*pmd); - if (is_migration_entry(entry)) + if (is_migration_entry(entry)) { + migration = true; page = pfn_swap_entry_to_page(entry); + } } if (IS_ERR_OR_NULL(page)) return; @@ -577,7 +593,9 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr, /* pass */; else mss->file_thp += HPAGE_PMD_SIZE; - smaps_account(mss, page, true, pmd_young(*pmd), pmd_dirty(*pmd), locked); + + smaps_account(mss, page, true, pmd_young(*pmd), pmd_dirty(*pmd), + locked, migration); } #else static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr, @@ -1378,6 +1396,7 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm, { u64 frame = 0, flags = 0; struct page *page = NULL; + bool migration = false; if (pte_present(pte)) { if (pm->show_pfn) @@ -1399,13 +1418,14 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm, frame = swp_type(entry) | (swp_offset(entry) << MAX_SWAPFILES_SHIFT); flags |= PM_SWAP; + migration = is_migration_entry(entry); if (is_pfn_swap_entry(entry)) page = pfn_swap_entry_to_page(entry); } if (page && !PageAnon(page)) flags |= PM_FILE; - if (page && page_mapcount(page) == 1) + if (page && !migration && page_mapcount(page) == 1) flags |= PM_MMAP_EXCLUSIVE; if (vma->vm_flags & VM_SOFTDIRTY) flags |= PM_SOFT_DIRTY; @@ -1421,6 +1441,7 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end, spinlock_t *ptl; pte_t *pte, *orig_pte; int err = 0; + bool migration = false; #ifdef CONFIG_TRANSPARENT_HUGEPAGE ptl = pmd_trans_huge_lock(pmdp, vma); @@ -1461,11 +1482,12 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end, if (pmd_swp_uffd_wp(pmd)) flags |= PM_UFFD_WP; VM_BUG_ON(!is_pmd_migration_entry(pmd)); + migration = is_migration_entry(entry); page = pfn_swap_entry_to_page(entry); } #endif - if (page && page_mapcount(page) == 1) + if (page && !migration && page_mapcount(page) == 1) flags |= PM_MMAP_EXCLUSIVE; for (; addr != end; addr += PAGE_SIZE) { -- 2.26.3

2 years, 1 month

5
12
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[PATCH] drm/panfrost: Fix the panfrost_mmu_map_fault_addr() error path

by Boris Brezillon

Make sure all bo->base.pages entries are either NULL or pointing to a valid page before calling drm_gem_shmem_put_pages(). Reported-by: Tomeu Vizoso <tomeu.vizoso(a)collabora.com> Cc: <stable(a)vger.kernel.org> Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations") Signed-off-by: Boris Brezillon <boris.brezillon(a)collabora.com> --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 569509c2ba27..d76dff201ea6 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -460,6 +460,7 @@ static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as, if (IS_ERR(pages[i])) { mutex_unlock(&bo->base.pages_lock); ret = PTR_ERR(pages[i]); + pages[i] = NULL; goto err_pages; } } -- 2.31.1

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[PATCH 4.19 000/338] 4.19.238-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.19.238 release. There are 338 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Sat, 16 Apr 2022 11:07:54 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.238-r… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.19.238-rc1 Felix Kuehling <Felix.Kuehling(a)amd.com> drm/amdkfd: Use drm_priv to pass VM from KFD to amdgpu Bas Nieuwenhuizen <bas(a)basnieuwenhuizen.nl> drm/amdgpu: Check if fd really is an amdgpu fd. Xin Long <lucien.xin(a)gmail.com> xfrm: policy: match with both mark and mask on user interfaces Tejun Heo <tj(a)kernel.org> selftests: cgroup: Test open-time cgroup namespace usage for migration checks Tejun Heo <tj(a)kernel.org> selftests: cgroup: Test open-time credential usage for migration checks Tejun Heo <tj(a)kernel.org> selftests: cgroup: Make cg_create() use 0755 for permission instead of 0644 Tejun Heo <tj(a)kernel.org> cgroup: Use open-time cgroup namespace for process migration perm checks Tejun Heo <tj(a)kernel.org> cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv Tejun Heo <tj(a)kernel.org> cgroup: Use open-time credentials for process migraton perm checks Waiman Long <longman(a)redhat.com> mm/sparsemem: fix 'mem_section' will never be NULL gcc 12 warning Fangrui Song <maskray(a)google.com> arm64: module: remove (NOLOAD) from linker script Peter Xu <peterx(a)redhat.com> mm: don't skip swap entry even if zap_details specified Vinod Koul <vkoul(a)kernel.org> dmaengine: Revert "dmaengine: shdma: Fix runtime PM imbalance on error" Arnaldo Carvalho de Melo <acme(a)redhat.com> tools build: Use $(shell ) instead of `` to get embedded libperl's ccopts Arnaldo Carvalho de Melo <acme(a)redhat.com> tools build: Filter out options and warnings not supported by clang Marc Zyngier <maz(a)kernel.org> irqchip/gic-v3: Fix GICR_CTLR.RWP polling Xiaomeng Tong <xiam0nd.tong(a)gmail.com> perf: qcom_l2_pmu: fix an incorrect NULL check on list iterator Christian Lamparter <chunkeey(a)gmail.com> ata: sata_dwc_460ex: Fix crash due to OOB write Guo Ren <guoren(a)linux.alibaba.com> arm64: patch_text: Fixup last cpu should be master Ethan Lien <ethanlien(a)synology.com> btrfs: fix qgroup reserve overflow the qgroup limit Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/speculation: Restore speculation related MSRs during S3 resume Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/pm: Save the MSR validity status at context setup Miaohe Lin <linmiaohe(a)huawei.com> mm/mempolicy: fix mpol_new leak in shared_policy_replace Paolo Bonzini <pbonzini(a)redhat.com> mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) Wolfram Sang <wsa+renesas(a)sang-engineering.com> mmc: renesas_sdhi: don't overwrite TAP settings when HS400 tuning is complete Pali Rohár <pali(a)kernel.org> Revert "mmc: sdhci-xenon: fix annoying 1.8V regulator warning" Lv Yunlong <lyl2019(a)mail.ustc.edu.cn> drbd: Fix five use after free bugs in get_initial_state Kamal Dasu <kdasu.kdev(a)gmail.com> spi: bcm-qspi: fix MSPI only access with bcm_qspi_exec_mem_op() Jamie Bainbridge <jamie.bainbridge(a)gmail.com> qede: confirm skb is allocated before using Eric Dumazet <edumazet(a)google.com> rxrpc: fix a race in rxrpc_exit_net() Ilya Maximets <i.maximets(a)ovn.org> net: openvswitch: don't send internal clone attribute to the userspace. José Expósito <jose.exposito89(a)gmail.com> drm/imx: Fix memory leak in imx_pd_connector_get_modes Chen-Yu Tsai <wens(a)csie.org> net: stmmac: Fix unset max_speed difference between DT and non-DT platforms Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one() Guilherme G. Piccoli <gpiccoli(a)igalia.com> Drivers: hv: vmbus: Fix potential crash on module unload Dan Carpenter <dan.carpenter(a)oracle.com> drm/amdgpu: fix off by one in amdgpu_gfx_kiq_acquire() James Morse <james.morse(a)arm.com> KVM: arm64: Check arm64_get_bp_hardening_data() didn't return NULL Mauricio Faria de Oliveira <mfo(a)canonical.com> mm: fix race between MADV_FREE reclaim and blkdev direct IO read Willem de Bruijn <willemb(a)google.com> net: add missing SOF_TIMESTAMPING_OPT_ID support Helge Deller <deller(a)gmx.de> parisc: Fix CPU affinity for Lasi, WAX and Dino chips Haimin Zhang <tcs_kernel(a)tencent.com> jfs: prevent NULL deref in diFree Randy Dunlap <rdunlap(a)infradead.org> virtio_console: eliminate anonymous module_init & module_exit Jiri Slaby <jslaby(a)suse.cz> serial: samsung_tty: do not unlock port->lock for uart_write_wakeup() NeilBrown <neilb(a)suse.de> NFS: swap-out must always use STABLE writes. NeilBrown <neilb(a)suse.de> NFS: swap IO handling is slightly different for O_DIRECT IO NeilBrown <neilb(a)suse.de> SUNRPC/call_alloc: async tasks mustn't block waiting for memory Maxime Ripard <maxime(a)cerno.tech> clk: Enforce that disjoints limits are invalid Dongli Zhang <dongli.zhang(a)oracle.com> xen: delay xen_hvm_init_time_ops() if kdump is boot on vcpu>=32 Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Protect the state recovery thread against direct reclaim Lucas Denefle <lucas.denefle(a)converge.io> w1: w1_therm: fixes w1_seq for ds28ea00 sensors Qinghua Jin <qhjin.dev(a)gmail.com> minix: fix bug when opening a file with O_DIRECT Randy Dunlap <rdunlap(a)infradead.org> init/main.c: return 1 from handled __setup() functions Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: Fix use after free in hci_send_acl Max Filippov <jcmvbkbc(a)gmail.com> xtensa: fix DTC warning unit_address_format H. Nikolaus Schaller <hns(a)goldelico.com> usb: dwc3: omap: fix "unbalanced disables for smps10_out1" on omap5evm Jianglei Nie <niejianglei2021(a)163.com> scsi: libfc: Fix use after free in fc_exch_abts_resp() Alexander Lobakin <alobakin(a)pm.me> MIPS: fix fortify panic when copying asm exception handlers Michael Chan <michael.chan(a)broadcom.com> bnxt_en: Eliminate unintended link toggle during FW reset Sven Eckelmann <sven(a)narfation.org> macvtap: advertise link netns via netlink Dust Li <dust.li(a)linux.alibaba.com> net/smc: correct settings of RMB window update limit Randy Dunlap <rdunlap(a)infradead.org> scsi: aha152x: Fix aha152x_setup() __setup handler return value Damien Le Moal <damien.lemoal(a)opensource.wdc.com> scsi: pm8001: Fix pm8001_mpi_task_abort_resp() Alex Deucher <alexander.deucher(a)amd.com> drm/amdkfd: make CRAT table missing message informational only Jordy Zomer <jordy(a)jordyzomer.github.io> dm ioctl: prevent potential spectre v1 gadget Ido Schimmel <idosch(a)nvidia.com> ipv4: Invalidate neighbour for broadcast address upon address addition Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> PCI: pciehp: Add Qualcomm quirk for Command Completed erratum Neal Liu <neal_liu(a)aspeedtech.com> usb: ehci: add pci device support for Aspeed platforms Zhou Guanghui <zhouguanghui1(a)huawei.com> iommu/arm-smmu-v3: fix event handling soft lockup Pali Rohár <pali(a)kernel.org> PCI: aardvark: Fix support for MSI interrupts Sourabh Jain <sourabhjain(a)linux.ibm.com> powerpc: Set crashkernel offset to mid of RMA region Evgeny Boger <boger(a)wirenboard.com> power: supply: axp20x_battery: properly report current when discharging Yang Guang <yang.guang5(a)zte.com.cn> scsi: bfa: Replace snprintf() with sysfs_emit() Yang Guang <yang.guang5(a)zte.com.cn> scsi: mvsas: Replace snprintf() with sysfs_emit() Maxim Kiselev <bigunclemax(a)gmail.com> powerpc: dts: t104xrdb: fix phy type for FMAN 4/5 Yang Guang <yang.guang5(a)zte.com.cn> ptp: replace snprintf with sysfs_emit Xin Xiong <xiongx18(a)fudan.edu.cn> drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj Zekun Shen <bruceshenzk(a)gmail.com> ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 Anisse Astier <anisse(a)astier.eu> drm: Add orientation quirk for GPD Win Max Jim Mattson <jmattson(a)google.com> KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs Randy Dunlap <rdunlap(a)infradead.org> ARM: 9187/1: JIVE: fix return value of __setup handler Fangrui Song <maskray(a)google.com> riscv module: remove (NOLOAD) Jiasheng Jiang <jiasheng(a)iscas.ac.cn> rtc: wm8350: Handle error for wm8350_register_irq Zhihao Cheng <chengzhihao1(a)huawei.com> ubifs: Rectify space amount budget for mkdir/tmpfile operations Vitaly Kuznetsov <vkuznets(a)redhat.com> KVM: x86: Forbid VMM to set SYNIC/STIMER MSRs when SynIC wasn't activated Martin Varghese <martin.varghese(a)nokia.com> openvswitch: Fixed nd target mask field in the flow dump. Anton Ivanov <anton.ivanov(a)cambridgegreys.com> um: Fix uml_mconsole stop/go Kuldeep Singh <singh.kuldeep87k(a)gmail.com> ARM: dts: spear13xx: Update SPI dma properties Kuldeep Singh <singh.kuldeep87k(a)gmail.com> ARM: dts: spear1340: Update serial node properties Amadeusz Sławiński <amadeuszx.slawinski(a)linux.intel.com> ASoC: topology: Allow TLV control to be either read or write Zhihao Cheng <chengzhihao1(a)huawei.com> ubi: fastmap: Return error code if memory allocation fails in add_aeb() Hengqi Chen <hengqi.chen(a)gmail.com> bpf: Fix comment for helper bpf_current_task_under_cgroup() Randy Dunlap <rdunlap(a)infradead.org> mm/usercopy: return 1 from hardened_usercopy __setup() handler Randy Dunlap <rdunlap(a)infradead.org> mm/memcontrol: return 1 from cgroup.memory __setup() handler Randy Dunlap <rdunlap(a)infradead.org> mm/mmap: return 1 from stack_guard_gap __setup() handler Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> ACPI: CPPC: Avoid out of bounds access when parsing _CPC data Baokun Li <libaokun1(a)huawei.com> ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl Chen-Yu Tsai <wenst(a)chromium.org> pinctrl: pinconf-generic: Print arguments for bias-pull-* Andrew Price <anprice(a)redhat.com> gfs2: Make sure FITRIM minlen is rounded up to fs block size Pavel Skripkin <paskripkin(a)gmail.com> can: mcba_usb: properly check endpoint type Hangyu Hua <hbh25y(a)gmail.com> can: mcba_usb: mcba_usb_start_xmit(): fix double dev_kfree_skb in error path Baokun Li <libaokun1(a)huawei.com> ubifs: rename_whiteout: correct old_dir size computing Zhihao Cheng <chengzhihao1(a)huawei.com> ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock() Zhihao Cheng <chengzhihao1(a)huawei.com> ubifs: setflags: Make dirtied_ino_d 8 bytes aligned Zhihao Cheng <chengzhihao1(a)huawei.com> ubifs: Add missing iput if do_tmpfile() failed in rename whiteout Zhihao Cheng <chengzhihao1(a)huawei.com> ubifs: Fix deadlock in concurrent rename whiteout and inode writeback Zhihao Cheng <chengzhihao1(a)huawei.com> ubifs: rename_whiteout: Fix double free for whiteout_ui->data Li RongQing <lirongqing(a)baidu.com> KVM: x86: fix sending PV IPI David Matlack <dmatlack(a)google.com> KVM: Prevent module exit until all VMs are freed Manish Rangankar <mrangankar(a)marvell.com> scsi: qla2xxx: Use correct feature type field during RFF_ID processing Quinn Tran <qutran(a)marvell.com> scsi: qla2xxx: Reduce false trigger to login Quinn Tran <qutran(a)marvell.com> scsi: qla2xxx: Fix hang due to session stuck Quinn Tran <qutran(a)marvell.com> scsi: qla2xxx: Fix incorrect reporting of task management failure Saurav Kashyap <skashyap(a)marvell.com> scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair() Joe Carnuccio <joe.carnuccio(a)cavium.com> scsi: qla2xxx: Check for firmware dump already collected Nilesh Javali <njavali(a)marvell.com> scsi: qla2xxx: Fix warning for missing error code Quinn Tran <qutran(a)marvell.com> scsi: qla2xxx: Fix stuck session in gpdb Anders Roxell <anders.roxell(a)linaro.org> powerpc: Fix build errors with newer binutils Anders Roxell <anders.roxell(a)linaro.org> powerpc/lib/sstep: Fix build errors with newer binutils Anders Roxell <anders.roxell(a)linaro.org> powerpc/lib/sstep: Fix 'sthcx' instruction Ulf Hansson <ulf.hansson(a)linaro.org> mmc: host: Return an error when ->enable_sdio_irq() ops is missing Dongliang Mu <mudongliangabcd(a)gmail.com> media: hdpvr: initialize dev->worker at hdpvr_register_videodev Pavel Skripkin <paskripkin(a)gmail.com> media: Revert "media: em28xx: add missing em28xx_close_extension" Zheyu Ma <zheyuma97(a)gmail.com> video: fbdev: sm712fb: Fix crash in smtcfb_write() Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> ARM: mmp: Fix failure to remove sram device Richard Leitner <richard.leitner(a)skidata.com> ARM: tegra: tamonten: Fix I2C3 pad setting Daniel González Cabanelas <dgcbueu(a)gmail.com> media: cx88-mpeg: clear interrupt status register before streaming video Shengjiu Wang <shengjiu.wang(a)nxp.com> ASoC: soc-core: skip zero num_dai component in searching dai name Jing Yao <yao.jing2(a)zte.com.cn> video: fbdev: udlfb: replace snprintf in show functions with sysfs_emit Jing Yao <yao.jing2(a)zte.com.cn> video: fbdev: omapfb: panel-tpo-td043mtea1: Use sysfs_emit() instead of snprintf() Jing Yao <yao.jing2(a)zte.com.cn> video: fbdev: omapfb: panel-dsi-cm: Use sysfs_emit() instead of snprintf() Ard Biesheuvel <ardb(a)kernel.org> ARM: ftrace: avoid redundant loads or clobbering IP Richard Schleich <rs(a)noreya.tech> ARM: dts: bcm2837: Add the missing L1/L2 cache information David Heidelberg <david(a)ixit.cz> ARM: dts: qcom: fix gic_irq_domain_translate warnings for msm8960 Yang Guang <yang.guang5(a)zte.com.cn> video: fbdev: omapfb: acx565akm: replace snprintf with sysfs_emit George Kennedy <george.kennedy(a)oracle.com> video: fbdev: cirrusfb: check pixclock to avoid divide by zero Evgeny Novikov <novikov(a)ispras.ru> video: fbdev: w100fb: Reset global state Tim Gardner <tim.gardner(a)canonical.com> video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow Dongliang Mu <mudongliangabcd(a)gmail.com> ntfs: add sanity check on allocation size Theodore Ts'o <tytso(a)mit.edu> ext4: don't BUG if someone dirty pages without asking ext4 first Minghao Chi <chi.minghao(a)zte.com.cn> spi: tegra20: Use of_device_get_match_data() Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> PM: core: keep irq flags in device_pm_check_callbacks() Darren Hart <darren(a)os.amperecomputing.com> ACPI/APEI: Limit printable size of BERT table data Paolo Valente <paolo.valente(a)linaro.org> Revert "Revert "block, bfq: honor already-setup queue merges"" Paul Menzel <pmenzel(a)molgen.mpg.de> lib/raid6/test/Makefile: Use $(pound) instead of \# for Make 4.3 Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> ACPICA: Avoid walking the ACPI Namespace if it is not there Zhang Wensheng <zhangwensheng5(a)huawei.com> bfq: fix use-after-free in bfq_dispatch_request Souptick Joarder (HPE) <jrdr.linux(a)gmail.com> irqchip/nvic: Release nvic_base upon failure Marc Zyngier <maz(a)kernel.org> irqchip/qcom-pdc: Fix broken locking Casey Schaufler <casey(a)schaufler-ca.com> Fix incorrect type in assignment of ipv6 port for audit Chaitanya Kulkarni <kch(a)nvidia.com> loop: use sysfs_emit() in the sysfs xxx show() Christian Göttsche <cgzones(a)googlemail.com> selinux: use correct type for context length Dan Carpenter <dan.carpenter(a)oracle.com> lib/test: use after free in register_test_dev_kmod() Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4/pNFS: Fix another issue with a list iterator pointing to the head Duoming Zhou <duoming(a)zju.edu.cn> net/x25: Fix null-ptr-deref caused by x25_disconnect Tom Rix <trix(a)redhat.com> qlcnic: dcb: default to returning -EOPNOTSUPP Florian Fainelli <f.fainelli(a)gmail.com> net: phy: broadcom: Fix brcm_fet_config_init() Juergen Gross <jgross(a)suse.com> xen: fix is_xen_pmu() Konrad Dybcio <konrad.dybcio(a)somainline.org> clk: qcom: gcc-msm8994: Fix gpll4 width Pablo Neira Ayuso <pablo(a)netfilter.org> netfilter: nf_conntrack_tcp: preserve liberal flag in tcp options Pavel Skripkin <paskripkin(a)gmail.com> jfs: fix divide error in dbNextAG Randy Dunlap <rdunlap(a)infradead.org> kgdbts: fix return value of __setup handler Randy Dunlap <rdunlap(a)infradead.org> kgdboc: fix return value of __setup handler Randy Dunlap <rdunlap(a)infradead.org> tty: hvc: fix return value of __setup handler Miaoqian Lin <linmq006(a)gmail.com> pinctrl/rockchip: Add missing of_node_put() in rockchip_pinctrl_probe Miaoqian Lin <linmq006(a)gmail.com> pinctrl: nomadik: Add missing of_node_put() in nmk_pinctrl_probe Miaoqian Lin <linmq006(a)gmail.com> pinctrl: mediatek: Fix missing of_node_put() in mtk_pctrl_init Alexey Khoroshilov <khoroshilov(a)ispras.ru> NFS: remove unneeded check in decode_devicenotify_args() Miaoqian Lin <linmq006(a)gmail.com> clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver Jonathan Neuschäfer <j.neuschaefer(a)gmx.net> clk: clps711x: Terminate clk_div_table with sentinel element Jonathan Neuschäfer <j.neuschaefer(a)gmx.net> clk: loongson1: Terminate clk_div_table with sentinel element Jonathan Neuschäfer <j.neuschaefer(a)gmx.net> clk: actions: Terminate clk_div_table with sentinel element Miaoqian Lin <linmq006(a)gmail.com> remoteproc: qcom_wcnss: Add missing of_node_put() in wcnss_alloc_memory_region Taniya Das <tdas(a)codeaurora.org> clk: qcom: clk-rcg2: Update the frac table for pixel clock Randy Dunlap <rdunlap(a)infradead.org> dma-debug: fix return value of __setup handlers Jiasheng Jiang <jiasheng(a)iscas.ac.cn> iio: adc: Add check for devm_request_threaded_irq Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> serial: 8250: Fix race condition in RTS-after-send handling Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> serial: 8250_mid: Balance reference count for PCI DMA device Dirk Buchwalder <buchwalder(a)posteo.de> clk: qcom: ipq8074: Use floor ops for SDCC1 clock Jonathan Cameron <Jonathan.Cameron(a)huawei.com> staging:iio:adc:ad7280a: Fix handing of device address bit reversing. Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add() Jiri Slaby <jslaby(a)suse.cz> mxser: fix xmit_buf leak in activate when LSR == 0xff Miaoqian Lin <linmq006(a)gmail.com> mfd: asic3: Add missing iounmap() on error asic3_mfd_probe Jakub Kicinski <kuba(a)kernel.org> tcp: ensure PMTU updates are processed during fastopen Jeremy Linton <jeremy.linton(a)arm.com> net: bcmgenet: Use stronger register read/writes to assure ordering Hangbin Liu <liuhangbin(a)gmail.com> selftests/bpf/test_lirc_mode2.sh: Exit with proper code Peter Rosin <peda(a)axentia.se> i2c: mux: demux-pinctrl: do not deactivate a master that is not active Petr Machata <petrm(a)nvidia.com> af_netlink: Fix shift out of bounds in group mask calculation Dan Carpenter <dan.carpenter(a)oracle.com> USB: storage: ums-realtek: fix error code in rts51x_read_mem() Xin Xiong <xiongx18(a)fudan.edu.cn> mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init Randy Dunlap <rdunlap(a)infradead.org> MIPS: RB532: fix return value of __setup handler Oliver Hartkopp <socketcan(a)hartkopp.net> vxcan: enable local echo for sent CAN frames Jiasheng Jiang <jiasheng(a)iscas.ac.cn> mfd: mc13xxx: Add check for mc13xxx_irq_request Jakob Koschel <jakobkoschel(a)gmail.com> powerpc/sysdev: fix incorrect use to determine if list is empty Mark Tomlinson <mark.tomlinson(a)alliedtelesis.co.nz> PCI: Reduce warnings on possible RW1C corruption Jiasheng Jiang <jiasheng(a)iscas.ac.cn> power: supply: wm8350-power: Add missing free in free_charger_irq Jiasheng Jiang <jiasheng(a)iscas.ac.cn> power: supply: wm8350-power: Handle error for wm8350_register_irq Robert Hancock <robert.hancock(a)calian.com> i2c: xiic: Make bus names unique Anssi Hannula <anssi.hannula(a)bitwise.fi> hv_balloon: rate-limit "Unhandled message" warning Hou Wenlong <houwenlong.hwl(a)antgroup.com> KVM: x86/emulator: Defer not-present segment check in __load_segment_descriptor() Zhenzhong Duan <zhenzhong.duan(a)intel.com> KVM: x86: Fix emulation in writing cr8 Michael Ellerman <mpe(a)ellerman.id.au> powerpc/Makefile: Don't pass -mcpu=powerpc64 when building 32-bit Nishanth Menon <nm(a)ti.com> drm/bridge: cdns-dsi: Make sure to to create proper aliases for dt Hans de Goede <hdegoede(a)redhat.com> power: supply: bq24190_charger: Fix bq24190_vbus_is_enabled() wrong false return Miaoqian Lin <linmq006(a)gmail.com> drm/tegra: Fix reference leak in tegra_dsi_ganged_probe Zhang Yi <yi.zhang(a)huawei.com> ext2: correct max file size computing Randy Dunlap <rdunlap(a)infradead.org> TOMOYO: fix __setup handlers return values Damien Le Moal <damien.lemoal(a)opensource.wdc.com> scsi: pm8001: Fix abort all task initialization Damien Le Moal <damien.lemoal(a)opensource.wdc.com> scsi: pm8001: Fix payload initialization in pm80xx_set_thermal_config() Damien Le Moal <damien.lemoal(a)opensource.wdc.com> scsi: pm8001: Fix command initialization in pm8001_chip_ssp_tm_req() Damien Le Moal <damien.lemoal(a)opensource.wdc.com> scsi: pm8001: Fix command initialization in pm80XX_send_read_log() Aashish Sharma <shraash(a)google.com> dm crypt: fix get_key_size compiler warning if !CONFIG_KEYS Colin Ian King <colin.king(a)canonical.com> iwlwifi: Fix -EIO error code that is never returned Dmitry Torokhov <dmitry.torokhov(a)gmail.com> HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports Miaoqian Lin <linmq006(a)gmail.com> power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init Jiasheng Jiang <jiasheng(a)iscas.ac.cn> ray_cs: Check ioremap return value Miaoqian Lin <linmq006(a)gmail.com> power: reset: gemini-poweroff: Fix IRQ check in gemini_poweroff_probe Fabiano Rosas <farosas(a)linux.ibm.com> KVM: PPC: Fix vmx/vsx mixup in mmio emulation Pavel Skripkin <paskripkin(a)gmail.com> ath9k_htc: fix uninit value bugs Zhou Qingyang <zhou1615(a)umn.edu> drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes() Maxime Ripard <maxime(a)cerno.tech> drm/edid: Don't clear formats if using deep color Jiasheng Jiang <jiasheng(a)iscas.ac.cn> mtd: onenand: Check for error irq Pavel Skripkin <paskripkin(a)gmail.com> Bluetooth: hci_serdev: call init_rwsem() before p->open() Wen Gong <quic_wgong(a)quicinc.com> ath10k: fix memory overwrite of the WoWLAN wakeup packet pattern Miaoqian Lin <linmq006(a)gmail.com> drm/bridge: Fix free wrong object in sii8620_init_rcp_input_dev Jiasheng Jiang <jiasheng(a)iscas.ac.cn> mmc: davinci_mmc: Handle error for clk_enable Miaoqian Lin <linmq006(a)gmail.com> ASoC: msm8916-wcd-digital: Fix missing clk_disable_unprepare() in msm8916_wcd_digital_probe Wang Wensheng <wangwensheng4(a)huawei.com> ASoC: imx-es8328: Fix error return code in imx_es8328_probe() Miaoqian Lin <linmq006(a)gmail.com> ASoC: mxs: Fix error handling in mxs_sgtl5000_probe Codrin Ciubotariu <codrin.ciubotariu(a)microchip.com> ASoC: dmaengine: do not use a NULL prepare_slave_config() callback Miaoqian Lin <linmq006(a)gmail.com> video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of Jiasheng Jiang <jiasheng(a)iscas.ac.cn> ASoC: fsi: Add check for clk_enable Jiasheng Jiang <jiasheng(a)iscas.ac.cn> ASoC: wm8350: Handle error for wm8350_register_irq Miaoqian Lin <linmq006(a)gmail.com> ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe Dafna Hirschfeld <dafna.hirschfeld(a)collabora.com> media: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction Jia-Ju Bai <baijiaju1990(a)gmail.com> memory: emif: check the pointer temp in get_device_details() Jiasheng Jiang <jiasheng(a)iscas.ac.cn> memory: emif: Add check for setup_interrupts Jiasheng Jiang <jiasheng(a)iscas.ac.cn> ASoC: atmel_ssc_dai: Handle errors for clk_enable Jiasheng Jiang <jiasheng(a)iscas.ac.cn> ASoC: mxs-saif: Handle errors for clk_enable Randy Dunlap <rdunlap(a)infradead.org> printk: fix return value of printk.devkmsg __setup handler Frank Wunderlich <frank-w(a)public-files.de> arm64: dts: broadcom: Fix sata nodename Kuldeep Singh <singh.kuldeep87k(a)gmail.com> arm64: dts: ns2: Fix spi-cpol and spi-cpha property Jiasheng Jiang <jiasheng(a)iscas.ac.cn> ALSA: spi: Add check for clk_enable() Jiasheng Jiang <jiasheng(a)iscas.ac.cn> ASoC: ti: davinci-i2s: Add check for clk_enable() Jia-Ju Bai <baijiaju1990(a)gmail.com> ASoC: rt5663: check the return value of devm_kzalloc() in rt5663_parse_dp() Dan Carpenter <dan.carpenter(a)oracle.com> media: usb: go7007: s2250-board: fix leak in probe() Dongliang Mu <mudongliangabcd(a)gmail.com> media: em28xx: initialize refcount before kref_get Miaoqian Lin <linmq006(a)gmail.com> soc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe Pavel Kubelun <be.dissent(a)gmail.com> ARM: dts: qcom: ipq4019: fix sleep clock Dan Carpenter <dan.carpenter(a)oracle.com> video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name() Wang Hai <wanghai38(a)huawei.com> video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe() Miaoqian Lin <linmq006(a)gmail.com> media: coda: Fix missing put_device() call in coda_get_vdoa_data Adrian Hunter <adrian.hunter(a)intel.com> perf/x86/intel/pt: Fix address filter config for 32-bit kernel Adrian Hunter <adrian.hunter(a)intel.com> perf/core: Fix address filter parser for multiple filters Bharata B Rao <bharata(a)amd.com> sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa Randy Dunlap <rdunlap(a)infradead.org> clocksource: acpi_pm: fix return value of __setup handler Brandon Wyman <bjwyman(a)gmail.com> hwmon: (pmbus) Add Vin unit off handling Dāvis Mosāns <davispuh(a)gmail.com> crypto: ccp - ccp_dmaengine_unregister release dma channels Randy Dunlap <rdunlap(a)infradead.org> ACPI: APEI: fix return value of __setup handlers Guillaume Ranquet <granquet(a)baylibre.com> clocksource/drivers/timer-of: Check return value of of_iomap in timer_of_base_init() Petr Vorel <pvorel(a)suse.cz> crypto: vmx - add missing dependencies Claudiu Beznea <claudiu.beznea(a)microchip.com> hwrng: atmel - disable trng on failure path Randy Dunlap <rdunlap(a)infradead.org> PM: suspend: fix return value of __setup handler Randy Dunlap <rdunlap(a)infradead.org> PM: hibernate: fix __setup handler error handling Eric Biggers <ebiggers(a)google.com> block: don't delete queue kobject before its children Armin Wolf <W_Armin(a)gmx.de> hwmon: (sch56xx-common) Replace WDOG_ACTIVE with WDOG_HW_RUNNING Patrick Rudolph <patrick.rudolph(a)9elements.com> hwmon: (pmbus) Add mutex to regulator ops Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> spi: pxa2xx-pci: Balance reference count for PCI DMA device Muhammad Usama Anjum <usama.anjum(a)collabora.com> selftests/x86: Add validity check and allow field splitting Miaoqian Lin <linmq006(a)gmail.com> spi: tegra114: Add missing IRQ check in tegra_spi_probe Tomas Paukrt <tomaspaukrt(a)email.cz> crypto: mxs-dcp - Fix scatterlist processing Herbert Xu <herbert(a)gondor.apana.org.au> crypto: authenc - Fix sleep in atomic context in decrypt_tail kernel test robot <lkp(a)intel.com> regulator: qcom_smd: fix for_each_child.cocci warnings Liguang Zhang <zhangliguang(a)linux.alibaba.com> PCI: pciehp: Clear cmd_busy bit in polling mode Hector Martin <marcan(a)marcan.st> brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio Hector Martin <marcan(a)marcan.st> brcmfmac: firmware: Allocate space for default boardrev in nvram Johan Hovold <johan(a)kernel.org> media: davinci: vpif: fix unbalanced runtime PM get Maciej W. Rozycki <macro(a)orcam.me.uk> DEC: Limit PMAX memory probing to R3k systems Dirk Müller <dmueller(a)suse.de> lib/raid6/test: fix multiple definition linking error Srinivas Pandruvada <srinivas.pandruvada(a)linux.intel.com> thermal: int340x: Increase bitmap size Colin Ian King <colin.i.king(a)gmail.com> carl9170: fix missing bit-wise or operator for tx_params Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> ARM: dts: exynos: add missing HDMI supplies on SMDK5420 Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> ARM: dts: exynos: add missing HDMI supplies on SMDK5250 Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> ARM: dts: exynos: fix UART3 pins configuration in Exynos5250 Tudor Ambarus <tudor.ambarus(a)microchip.com> ARM: dts: at91: sama5d2: Fix PMERRLOC resource size Michael Schmitz <schmitzmic(a)gmail.com> video: fbdev: atari: Atari 2 bpp (STe) palette bugfix Helge Deller <deller(a)gmx.de> video: fbdev: sm712fb: Fix crash in smtcfb_read() Cooper Chiou <cooper.chiou(a)intel.com> drm/edid: check basic audio support on CEA extension block Tejun Heo <tj(a)kernel.org> block: don't merge across cgroup boundaries if blkcg is enabled Duoming Zhou <duoming(a)zju.edu.cn> drivers: hamradio: 6pack: fix UAF bug caused by mod_timer() Sakari Ailus <sakari.ailus(a)linux.intel.com> ACPI: properties: Consistently return -ENOENT if there are no more references Andreas Gruenbacher <agruenba(a)redhat.com> powerpc/kvm: Fix kvm_use_magic_page Lars Ellenberg <lars.ellenberg(a)linbit.com> drbd: fix potential silent data corruption Rik van Riel <riel(a)surriel.com> mm,hwpoison: unmap poisoned page before invalidation Kai-Heng Feng <kai.heng.feng(a)canonical.com> ALSA: hda/realtek: Fix audio regression on Mi Notebook Pro 2020 Xiaomeng Tong <xiam0nd.tong(a)gmail.com> ALSA: cs4236: fix an incorrect NULL check on list iterator José Expósito <jose.exposito89(a)gmail.com> Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads" Manish Chopra <manishc(a)marvell.com> qed: validate and restrict untrusted VFs vlan promisc mode Manish Chopra <manishc(a)marvell.com> qed: display VF trust config Damien Le Moal <damien.lemoal(a)opensource.wdc.com> scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands Hugh Dickins <hughd(a)google.com> mempolicy: mbind_range() set_policy() after vma_merge() Rik van Riel <riel(a)surriel.com> mm: invalidate hwpoison page cache page in fault path Alistair Popple <apopple(a)nvidia.com> mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node Baokun Li <libaokun1(a)huawei.com> jffs2: fix memory leak in jffs2_scan_medium Baokun Li <libaokun1(a)huawei.com> jffs2: fix memory leak in jffs2_do_mount_fs Baokun Li <libaokun1(a)huawei.com> jffs2: fix use-after-free in jffs2_clear_xattr_subsystem Hangyu Hua <hbh25y(a)gmail.com> can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> pinctrl: samsung: drop pin banks references on error paths Chao Yu <chao(a)kernel.org> f2fs: fix to unlock page correctly in error path of is_alive() Dan Carpenter <dan.carpenter(a)oracle.com> NFSD: prevent integer overflow on 32 bit systems Dan Carpenter <dan.carpenter(a)oracle.com> NFSD: prevent underflow in nfssvc_decode_writeargs() NeilBrown <neilb(a)suse.de> SUNRPC: avoid race between mod_timer() and del_timer_sync() Bagas Sanjaya <bagasdotme(a)gmail.com> Documentation: update stable tree link Bagas Sanjaya <bagasdotme(a)gmail.com> Documentation: add link to stable release candidate tree Jann Horn <jannh(a)google.com> ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE Kunihiko Hayashi <hayashi.kunihiko(a)socionext.com> clk: uniphier: Fix fixed-rate initialization Liam Beguin <liambeguin(a)gmail.com> iio: inkern: make a best effort on offset calculation Liam Beguin <liambeguin(a)gmail.com> iio: inkern: apply consumer scale when no channel scale is available Liam Beguin <liambeguin(a)gmail.com> iio: inkern: apply consumer scale on IIO_VAL_INT cases Liam Beguin <liambeguin(a)gmail.com> iio: afe: rescale: use s64 for temporary scale calculations James Clark <james.clark(a)arm.com> coresight: Fix TRCCONFIGR.QE sysfs interface Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: make xhci_handshake timeout for xhci_reset() adjustable Alan Stern <stern(a)rowland.harvard.edu> USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c Xie Yongji <xieyongji(a)bytedance.com> virtio-blk: Use blk_validate_block_size() to validate block size Xie Yongji <xieyongji(a)bytedance.com> block: Add a helper to validate the block size Lino Sanfilippo <LinoSanfilippo(a)gmx.de> tpm: fix reference counting for struct tpm_chip Miklos Szeredi <mszeredi(a)redhat.com> fuse: fix pipe buffer lifetime for direct_io Haimin Zhang <tcs_kernel(a)tencent.com> af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register Biju Das <biju.das.jz(a)bp.renesas.com> spi: Fix erroneous sgs value with min_t() Minghao Chi (CGEL ZTE) <chi.minghao(a)zte.com.cn> net:mcf8390: Use platform_get_irq() to get the interrupt Biju Das <biju.das.jz(a)bp.renesas.com> spi: Fix invalid sgs value Zheyu Ma <zheyuma97(a)gmail.com> ethernet: sun: Free the coherent when failing in probing Michael S. Tsirkin <mst(a)redhat.com> virtio_console: break out of buf poll on remove Lina Wang <lina.wang(a)mediatek.com> xfrm: fix tunnel model fragmentation behavior Yajun Deng <yajun.deng(a)linux.dev> netdevice: add the case if dev is NULL Randy Dunlap <rdunlap(a)infradead.org> hv: utils: add PTP_1588_CLOCK to Kconfig to fix build Johan Hovold <johan(a)kernel.org> USB: serial: simple: add Nokia phone driver Eddie James <eajames(a)linux.ibm.com> USB: serial: pl2303: add IBM device IDs ------------- Diffstat: Documentation/process/stable-kernel-rules.rst | 11 +- Makefile | 4 +- arch/arm/boot/dts/bcm2837.dtsi | 49 ++++++ arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 2 +- arch/arm/boot/dts/exynos5250-smdk5250.dts | 3 + arch/arm/boot/dts/exynos5420-smdk5420.dts | 3 + arch/arm/boot/dts/qcom-ipq4019.dtsi | 3 +- arch/arm/boot/dts/qcom-msm8960.dtsi | 8 +- arch/arm/boot/dts/sama5d2.dtsi | 2 +- arch/arm/boot/dts/spear1340.dtsi | 6 +- arch/arm/boot/dts/spear13xx.dtsi | 6 +- arch/arm/boot/dts/tegra20-tamonten.dtsi | 6 +- arch/arm/kernel/entry-ftrace.S | 51 +++---- arch/arm/mach-mmp/sram.c | 22 +-- arch/arm/mach-s3c24xx/mach-jive.c | 6 +- .../arm64/boot/dts/broadcom/northstar2/ns2-svk.dts | 8 +- arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi | 2 +- arch/arm64/include/asm/kvm_mmu.h | 3 +- arch/arm64/kernel/insn.c | 4 +- arch/arm64/kernel/module.lds | 6 +- arch/mips/dec/prom/Makefile | 2 +- arch/mips/include/asm/dec/prom.h | 15 +- arch/mips/include/asm/setup.h | 2 +- arch/mips/kernel/traps.c | 22 +-- arch/mips/rb532/devices.c | 6 +- arch/powerpc/Makefile | 2 +- arch/powerpc/boot/dts/fsl/t104xrdb.dtsi | 4 +- arch/powerpc/include/asm/io.h | 40 ++++- arch/powerpc/include/asm/uaccess.h | 3 + arch/powerpc/kernel/kvm.c | 2 +- arch/powerpc/kernel/machine_kexec.c | 15 +- arch/powerpc/kernel/rtas.c | 6 + arch/powerpc/kvm/powerpc.c | 4 +- arch/powerpc/lib/sstep.c | 8 +- arch/powerpc/platforms/powernv/rng.c | 6 +- arch/powerpc/sysdev/fsl_gtm.c | 4 +- arch/riscv/kernel/module.lds | 6 +- arch/um/drivers/mconsole_kern.c | 3 +- arch/x86/events/intel/pt.c | 2 +- arch/x86/kernel/kvm.c | 2 +- arch/x86/kvm/emulate.c | 14 +- arch/x86/kvm/hyperv.c | 17 ++- arch/x86/kvm/lapic.c | 5 +- arch/x86/kvm/pmu_amd.c | 8 +- arch/x86/power/cpu.c | 21 ++- arch/x86/xen/pmu.c | 10 +- arch/x86/xen/pmu.h | 3 +- arch/x86/xen/smp_hvm.c | 6 + arch/x86/xen/smp_pv.c | 2 +- arch/x86/xen/time.c | 24 ++- arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi | 8 +- arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi | 8 +- arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi | 4 +- block/bfq-iosched.c | 31 ++-- block/blk-merge.c | 12 ++ block/blk-sysfs.c | 8 +- crypto/authenc.c | 2 +- drivers/acpi/acpica/nswalk.c | 3 + drivers/acpi/apei/bert.c | 10 +- drivers/acpi/apei/erst.c | 2 +- drivers/acpi/apei/hest.c | 2 +- drivers/acpi/cppc_acpi.c | 5 + drivers/acpi/property.c | 2 +- drivers/ata/sata_dwc_460ex.c | 6 +- drivers/base/power/main.c | 6 +- drivers/block/drbd/drbd_int.h | 8 +- drivers/block/drbd/drbd_nl.c | 41 +++-- drivers/block/drbd/drbd_req.c | 3 +- drivers/block/drbd/drbd_state.c | 18 +-- drivers/block/drbd/drbd_state_change.h | 8 +- drivers/block/loop.c | 10 +- drivers/block/virtio_blk.c | 12 +- drivers/bluetooth/hci_serdev.c | 3 +- drivers/char/hw_random/atmel-rng.c | 1 + drivers/char/tpm/tpm-chip.c | 46 +----- drivers/char/tpm/tpm.h | 2 + drivers/char/tpm/tpm2-space.c | 65 ++++++++ drivers/char/virtio_console.c | 15 +- drivers/clk/actions/owl-s700.c | 1 + drivers/clk/actions/owl-s900.c | 2 +- drivers/clk/clk-clps711x.c | 2 + drivers/clk/clk.c | 24 +++ drivers/clk/loongson1/clk-loongson1c.c | 1 + drivers/clk/qcom/clk-rcg2.c | 1 + drivers/clk/qcom/gcc-ipq8074.c | 2 +- drivers/clk/qcom/gcc-msm8994.c | 1 + drivers/clk/tegra/clk-emc.c | 1 + drivers/clk/uniphier/clk-uniphier-fixed-rate.c | 1 + drivers/clocksource/acpi_pm.c | 6 +- drivers/clocksource/timer-of.c | 6 +- drivers/crypto/ccp/ccp-dmaengine.c | 16 ++ drivers/crypto/mxs-dcp.c | 2 +- drivers/crypto/vmx/Kconfig | 4 + drivers/dma/sh/shdma-base.c | 4 +- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 + drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 10 +- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 16 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c | 10 +- drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 2 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 + drivers/gpu/drm/bridge/cdns-dsi.c | 1 + drivers/gpu/drm/bridge/sil-sii8620.c | 2 +- drivers/gpu/drm/drm_edid.c | 11 +- drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 + drivers/gpu/drm/imx/parallel-display.c | 4 +- drivers/gpu/drm/tegra/dsi.c | 4 +- drivers/hid/i2c-hid/i2c-hid-core.c | 32 +++- drivers/hv/Kconfig | 1 + drivers/hv/hv_balloon.c | 2 +- drivers/hv/vmbus_drv.c | 9 +- drivers/hwmon/pmbus/pmbus.h | 1 + drivers/hwmon/pmbus/pmbus_core.c | 18 ++- drivers/hwmon/sch56xx-common.c | 2 +- .../hwtracing/coresight/coresight-etm4x-sysfs.c | 8 +- drivers/i2c/busses/i2c-xiic.c | 3 +- drivers/i2c/muxes/i2c-demux-pinctrl.c | 5 +- drivers/iio/adc/twl6030-gpadc.c | 2 + drivers/iio/afe/iio-rescale.c | 8 +- drivers/iio/inkern.c | 40 +++-- drivers/input/input.c | 6 - drivers/iommu/arm-smmu-v3.c | 1 + drivers/irqchip/irq-gic-v3.c | 8 +- drivers/irqchip/irq-nvic.c | 2 + drivers/irqchip/qcom-pdc.c | 5 +- drivers/md/dm-crypt.c | 2 +- drivers/md/dm-ioctl.c | 2 + drivers/media/pci/cx88/cx88-mpeg.c | 3 + drivers/media/platform/coda/coda-common.c | 1 + drivers/media/platform/davinci/vpif.c | 1 + drivers/media/usb/em28xx/em28xx-cards.c | 13 +- drivers/media/usb/go7007/s2250-board.c | 10 +- drivers/media/usb/hdpvr/hdpvr-video.c | 4 +- drivers/media/usb/stk1160/stk1160-core.c | 2 +- drivers/media/usb/stk1160/stk1160-v4l.c | 10 +- drivers/media/usb/stk1160/stk1160.h | 2 +- drivers/memory/emif.c | 8 +- drivers/mfd/asic3.c | 10 +- drivers/mfd/mc13xxx-core.c | 4 +- drivers/misc/kgdbts.c | 4 +- drivers/mmc/core/host.c | 15 +- drivers/mmc/host/davinci_mmc.c | 6 +- drivers/mmc/host/renesas_sdhi_core.c | 4 +- drivers/mmc/host/sdhci-xenon.c | 10 -- drivers/mtd/nand/onenand/generic.c | 7 +- drivers/mtd/nand/raw/atmel/nand-controller.c | 14 +- drivers/mtd/ubi/build.c | 9 +- drivers/mtd/ubi/fastmap.c | 28 ++-- drivers/mtd/ubi/vmt.c | 8 +- drivers/net/can/usb/ems_usb.c | 1 - drivers/net/can/usb/mcba_usb.c | 27 ++-- drivers/net/can/vxcan.c | 2 +- drivers/net/ethernet/8390/mcf8390.c | 10 +- drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 4 +- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 +- drivers/net/ethernet/qlogic/qed/qed_sriov.c | 29 +++- drivers/net/ethernet/qlogic/qed/qed_sriov.h | 1 + drivers/net/ethernet/qlogic/qede/qede_fp.c | 3 + drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h | 10 +- .../net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 +- drivers/net/ethernet/sun/sunhme.c | 6 +- drivers/net/hamradio/6pack.c | 4 +- drivers/net/macvtap.c | 6 + drivers/net/phy/broadcom.c | 21 +++ drivers/net/wireless/ath/ath10k/wow.c | 7 +- drivers/net/wireless/ath/ath5k/eeprom.c | 3 + drivers/net/wireless/ath/ath9k/htc_hst.c | 5 + drivers/net/wireless/ath/carl9170/main.c | 2 +- .../broadcom/brcm80211/brcmfmac/firmware.c | 2 + .../wireless/broadcom/brcm80211/brcmfmac/pcie.c | 48 +----- drivers/net/wireless/intel/iwlwifi/dvm/mac80211.c | 2 +- drivers/net/wireless/ray_cs.c | 6 + drivers/parisc/dino.c | 41 ++++- drivers/parisc/gsc.c | 31 ++++ drivers/parisc/gsc.h | 1 + drivers/parisc/lasi.c | 7 +- drivers/parisc/wax.c | 7 +- drivers/pci/access.c | 9 +- drivers/pci/controller/pci-aardvark.c | 16 +- drivers/pci/hotplug/pciehp_hpc.c | 4 + drivers/perf/qcom_l2_pmu.c | 6 +- drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 2 + drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +- drivers/pinctrl/pinconf-generic.c | 6 +- drivers/pinctrl/pinctrl-rockchip.c | 2 + drivers/pinctrl/samsung/pinctrl-samsung.c | 30 +++- drivers/power/reset/gemini-poweroff.c | 4 +- drivers/power/supply/ab8500_fg.c | 4 +- drivers/power/supply/axp20x_battery.c | 13 +- drivers/power/supply/bq24190_charger.c | 7 +- drivers/power/supply/wm8350_power.c | 97 ++++++++++-- drivers/ptp/ptp_sysfs.c | 4 +- drivers/pwm/pwm-lpc18xx-sct.c | 20 ++- drivers/regulator/qcom_smd-regulator.c | 4 +- drivers/remoteproc/qcom_wcnss.c | 1 + drivers/rtc/rtc-wm8350.c | 11 +- drivers/scsi/aha152x.c | 6 +- drivers/scsi/bfa/bfad_attr.c | 26 ++-- drivers/scsi/libfc/fc_exch.c | 1 + drivers/scsi/libsas/sas_ata.c | 2 +- drivers/scsi/mvsas/mv_init.c | 4 +- drivers/scsi/pm8001/pm8001_hwi.c | 13 +- drivers/scsi/pm8001/pm80xx_hwi.c | 11 +- drivers/scsi/qla2xxx/qla_def.h | 4 + drivers/scsi/qla2xxx/qla_gs.c | 5 +- drivers/scsi/qla2xxx/qla_init.c | 40 ++++- drivers/scsi/qla2xxx/qla_isr.c | 1 + drivers/scsi/qla2xxx/qla_target.c | 1 + drivers/scsi/zorro7xx.c | 2 + drivers/soc/ti/wkup_m3_ipc.c | 4 +- drivers/spi/spi-bcm-qspi.c | 4 +- drivers/spi/spi-pxa2xx-pci.c | 17 ++- drivers/spi/spi-tegra114.c | 4 + drivers/spi/spi-tegra20-slink.c | 8 +- drivers/spi/spi.c | 4 +- drivers/staging/iio/adc/ad7280a.c | 4 +- drivers/thermal/int340x_thermal/int3400_thermal.c | 2 +- drivers/tty/hvc/hvc_iucv.c | 4 +- drivers/tty/mxser.c | 15 +- drivers/tty/serial/8250/8250_mid.c | 19 ++- drivers/tty/serial/8250/8250_port.c | 12 ++ drivers/tty/serial/kgdboc.c | 6 +- drivers/tty/serial/samsung.c | 5 +- drivers/usb/dwc3/dwc3-omap.c | 2 +- drivers/usb/host/ehci-pci.c | 9 ++ drivers/usb/host/xhci-hub.c | 2 +- drivers/usb/host/xhci-mem.c | 2 +- drivers/usb/host/xhci.c | 20 ++- drivers/usb/host/xhci.h | 7 +- drivers/usb/serial/Kconfig | 1 + drivers/usb/serial/pl2303.c | 1 + drivers/usb/serial/pl2303.h | 3 + drivers/usb/serial/usb-serial-simple.c | 7 + drivers/usb/storage/ene_ub6250.c | 155 ++++++++++--------- drivers/usb/storage/realtek_cr.c | 2 +- drivers/video/fbdev/atafb.c | 12 +- drivers/video/fbdev/cirrusfb.c | 16 +- drivers/video/fbdev/core/fbcvt.c | 53 +++---- drivers/video/fbdev/nvidia/nv_i2c.c | 2 +- .../fbdev/omap2/omapfb/displays/connector-dvi.c | 1 + .../fbdev/omap2/omapfb/displays/panel-dsi-cm.c | 8 +- .../omap2/omapfb/displays/panel-sony-acx565akm.c | 2 +- .../omap2/omapfb/displays/panel-tpo-td043mtea1.c | 4 +- drivers/video/fbdev/sm712fb.c | 46 ++---- drivers/video/fbdev/smscufx.c | 3 +- drivers/video/fbdev/udlfb.c | 8 +- drivers/video/fbdev/w100fb.c | 15 +- drivers/w1/slaves/w1_therm.c | 8 +- fs/btrfs/extent_io.h | 2 +- fs/ext2/super.c | 6 +- fs/ext4/inode.c | 25 +++ fs/f2fs/gc.c | 4 +- fs/fuse/dev.c | 12 +- fs/fuse/file.c | 1 + fs/fuse/fuse_i.h | 2 + fs/gfs2/rgrp.c | 3 +- fs/jffs2/build.c | 4 +- fs/jffs2/fs.c | 2 +- fs/jffs2/scan.c | 6 +- fs/jfs/inode.c | 3 +- fs/jfs/jfs_dmap.c | 7 + fs/minix/inode.c | 3 +- fs/nfs/callback_proc.c | 27 ++-- fs/nfs/callback_xdr.c | 4 - fs/nfs/direct.c | 48 ++++-- fs/nfs/file.c | 4 +- fs/nfs/nfs4state.c | 12 ++ fs/nfs/pnfs.c | 11 ++ fs/nfs/pnfs.h | 2 + fs/nfsd/nfsproc.c | 2 +- fs/nfsd/xdr.h | 2 +- fs/ntfs/inode.c | 4 + fs/ubifs/dir.c | 44 ++++-- fs/ubifs/io.c | 34 ++++- fs/ubifs/ioctl.c | 2 +- include/linux/blk-cgroup.h | 17 +++ include/linux/blkdev.h | 8 + include/linux/mmzone.h | 11 +- include/linux/netdevice.h | 6 +- include/linux/nfs_fs.h | 8 +- include/linux/pci.h | 1 + include/linux/sunrpc/xdr.h | 2 + include/net/arp.h | 1 + include/net/sock.h | 25 ++- include/net/xfrm.h | 11 +- include/uapi/linux/bpf.h | 4 +- init/main.c | 6 +- kernel/cgroup/cgroup-internal.h | 19 +++ kernel/cgroup/cgroup-v1.c | 33 ++-- kernel/cgroup/cgroup.c | 81 +++++++--- kernel/dma/debug.c | 4 +- kernel/events/core.c | 3 + kernel/power/hibernate.c | 2 +- kernel/power/suspend_test.c | 8 +- kernel/printk/printk.c | 6 +- kernel/ptrace.c | 47 ++++-- kernel/sched/debug.c | 10 -- lib/raid6/test/Makefile | 4 +- lib/raid6/test/test.c | 1 - lib/test_kmod.c | 1 + mm/memcontrol.c | 2 +- mm/memory.c | 42 ++++-- mm/mempolicy.c | 9 +- mm/mmap.c | 2 +- mm/mremap.c | 3 + mm/page_alloc.c | 9 +- mm/rmap.c | 25 ++- mm/usercopy.c | 5 +- net/bluetooth/hci_event.c | 3 +- net/can/raw.c | 2 +- net/ipv4/arp.c | 9 +- net/ipv4/fib_frontend.c | 5 +- net/ipv4/raw.c | 2 +- net/ipv4/tcp_output.c | 5 +- net/ipv6/raw.c | 2 +- net/ipv6/xfrm6_output.c | 16 ++ net/key/af_key.c | 6 +- net/netfilter/nf_conntrack_proto_tcp.c | 17 ++- net/netlink/af_netlink.c | 2 + net/openvswitch/actions.c | 2 +- net/openvswitch/flow_netlink.c | 8 +- net/packet/af_packet.c | 6 +- net/rxrpc/net_ns.c | 2 +- net/smc/smc_core.c | 2 +- net/sunrpc/sched.c | 4 +- net/sunrpc/xprt.c | 7 + net/sunrpc/xprtrdma/transport.c | 4 +- net/x25/af_x25.c | 11 +- net/xfrm/xfrm_interface.c | 5 +- net/xfrm/xfrm_policy.c | 32 ++-- net/xfrm/xfrm_user.c | 18 ++- security/selinux/xfrm.c | 2 +- security/smack/smack_lsm.c | 2 +- security/tomoyo/load_policy.c | 4 +- sound/firewire/fcp.c | 4 +- sound/isa/cs423x/cs4236.c | 8 +- sound/pci/hda/patch_realtek.c | 4 +- sound/soc/atmel/atmel_ssc_dai.c | 5 +- sound/soc/atmel/sam9g20_wm8731.c | 1 + sound/soc/codecs/msm8916-wcd-digital.c | 5 +- sound/soc/codecs/rt5663.c | 2 + sound/soc/codecs/wm8350.c | 28 +++- sound/soc/davinci/davinci-i2s.c | 5 +- sound/soc/fsl/imx-es8328.c | 1 + sound/soc/mxs/mxs-saif.c | 5 +- sound/soc/mxs/mxs-sgtl5000.c | 3 + sound/soc/sh/fsi.c | 19 ++- sound/soc/soc-core.c | 2 +- sound/soc/soc-generic-dmaengine-pcm.c | 6 +- sound/soc/soc-topology.c | 3 +- sound/spi/at73c213.c | 27 +++- tools/build/feature/Makefile | 9 +- tools/include/uapi/linux/bpf.h | 4 +- tools/perf/Makefile.config | 3 + tools/testing/selftests/bpf/test_lirc_mode2.sh | 5 +- tools/testing/selftests/cgroup/cgroup_util.c | 2 +- tools/testing/selftests/cgroup/test_core.c | 167 +++++++++++++++++++++ tools/testing/selftests/x86/check_cc.sh | 2 +- virt/kvm/kvm_main.c | 13 ++ 360 files changed, 2494 insertions(+), 1147 deletions(-)

2 years, 5 months

15
356
0 0

[PATCH 3/9] bfq: Split shared queues on move between cgroups

by Jan Kara

When bfqq is shared by multiple processes it can happen that one of the processes gets moved to a different cgroup (or just starts submitting IO for different cgroup). In case that happens we need to split the merged bfqq as otherwise we will have IO for multiple cgroups in one bfqq and we will just account IO time to wrong entities etc. Similarly if the bfqq is scheduled to merge with another bfqq but the merge didn't happen yet, cancel the merge as it need not be valid anymore. CC: stable(a)vger.kernel.org Fixes: e21b7a0b9887 ("block, bfq: add full hierarchical scheduling and cgroups support") Signed-off-by: Jan Kara <jack(a)suse.cz> --- block/bfq-cgroup.c | 36 +++++++++++++++++++++++++++++++++--- block/bfq-iosched.c | 2 +- block/bfq-iosched.h | 1 + 3 files changed, 35 insertions(+), 4 deletions(-) diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c index 420eda2589c0..9352f3cc2377 100644 --- a/block/bfq-cgroup.c +++ b/block/bfq-cgroup.c @@ -743,9 +743,39 @@ static struct bfq_group *__bfq_bic_change_cgroup(struct bfq_data *bfqd, } if (sync_bfqq) { - entity = &sync_bfqq->entity; - if (entity->sched_data != &bfqg->sched_data) - bfq_bfqq_move(bfqd, sync_bfqq, bfqg); + if (!sync_bfqq->new_bfqq && !bfq_bfqq_coop(sync_bfqq)) { + /* We are the only user of this bfqq, just move it */ + if (sync_bfqq->entity.sched_data != &bfqg->sched_data) + bfq_bfqq_move(bfqd, sync_bfqq, bfqg); + } else { + struct bfq_queue *bfqq; + + /* + * The queue was merged to a different queue. Check + * that the merge chain still belongs to the same + * cgroup. + */ + for (bfqq = sync_bfqq; bfqq; bfqq = bfqq->new_bfqq) + if (bfqq->entity.sched_data != + &bfqg->sched_data) + break; + if (bfqq) { + /* + * Some queue changed cgroup so the merge is + * not valid anymore. We cannot easily just + * cancel the merge (by clearing new_bfqq) as + * there may be other processes using this + * queue and holding refs to all queues below + * sync_bfqq->new_bfqq. Similarly if the merge + * already happened, we need to detach from + * bfqq now so that we cannot merge bio to a + * request from the old cgroup. + */ + bfq_put_cooperator(sync_bfqq); + bfq_release_process_ref(bfqd, sync_bfqq); + bic_set_bfqq(bic, NULL, 1); + } + } } return bfqg; diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index 7d00b21ebe5d..89fe3f85eb3c 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -5315,7 +5315,7 @@ static void bfq_put_stable_ref(struct bfq_queue *bfqq) bfq_put_queue(bfqq); } -static void bfq_put_cooperator(struct bfq_queue *bfqq) +void bfq_put_cooperator(struct bfq_queue *bfqq) { struct bfq_queue *__bfqq, *next; diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h index 3b83e3d1c2e5..a56763045d19 100644 --- a/block/bfq-iosched.h +++ b/block/bfq-iosched.h @@ -979,6 +979,7 @@ void bfq_weights_tree_remove(struct bfq_data *bfqd, void bfq_bfqq_expire(struct bfq_data *bfqd, struct bfq_queue *bfqq, bool compensate, enum bfqq_expiration reason); void bfq_put_queue(struct bfq_queue *bfqq); +void bfq_put_cooperator(struct bfq_queue *bfqq); void bfq_end_wr_async_queues(struct bfq_data *bfqd, struct bfq_group *bfqg); void bfq_release_process_ref(struct bfq_data *bfqd, struct bfq_queue *bfqq); void bfq_schedule_dispatch(struct bfq_data *bfqd); -- 2.34.1

2 years, 5 months

2
3
0 0

[PATCH v2] mtd: spi-nor: Check for zero erase size in spi_nor_find_best_erase_type()

by Alexander A Sverdlin

From: Alexander Sverdlin <alexander.sverdlin(a)nokia.com> Erase can be zeroed in spi_nor_parse_4bait() or spi_nor_init_non_uniform_erase_map(). In practice it happened with mt25qu256a, which supports 4K, 32K, 64K erases with 3b address commands, but only 4K and 64K erase with 4b address commands. Fixes: dc92843159a7 ("mtd: spi-nor: fix erase_type array to indicate current map conf") Cc: stable(a)vger.kernel.org Signed-off-by: Alexander Sverdlin <alexander.sverdlin(a)nokia.com> --- Changes in v2: erase->opcode -> erase->size drivers/mtd/spi-nor/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 88dd090..183ea9d 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -1400,6 +1400,8 @@ spi_nor_find_best_erase_type(const struct spi_nor_erase_map *map, continue; erase = &map->erase_type[i]; + if (!erase->size) + continue; /* Alignment is not mandatory for overlaid regions */ if (region->offset & SNOR_OVERLAID_REGION && -- 2.10.2

2 years, 6 months

4
5
0 0

[PATCH] virt: acrn: obtain pa from VMA with PFNMAP flag

by Yonghua Huang

acrn_vm_ram_map can't pin the user pages with VM_PFNMAP flag by calling get_user_pages_fast(), the PA(physical pages) may be mapped by kernel driver and set PFNMAP flag. This patch fixes logic to setup EPT mapping for PFN mapped RAM region by checking the memory attribute before adding EPT mapping for them. Fixes: 88f537d5e8dd ("virt: acrn: Introduce EPT mapping management") Signed-off-by: Yonghua Huang <yonghua.huang(a)intel.com> Signed-off-by: Fei Li <fei1.li(a)intel.com> --- drivers/virt/acrn/mm.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/virt/acrn/mm.c b/drivers/virt/acrn/mm.c index c4f2e15c8a2b..3b1b1e7a844b 100644 --- a/drivers/virt/acrn/mm.c +++ b/drivers/virt/acrn/mm.c @@ -162,10 +162,34 @@ int acrn_vm_ram_map(struct acrn_vm *vm, struct acrn_vm_memmap *memmap) void *remap_vaddr; int ret, pinned; u64 user_vm_pa; + unsigned long pfn; + struct vm_area_struct *vma; if (!vm || !memmap) return -EINVAL; + mmap_read_lock(current->mm); + vma = vma_lookup(current->mm, memmap->vma_base); + if (vma && ((vma->vm_flags & VM_PFNMAP) != 0)) { + if ((memmap->vma_base + memmap->len) > vma->vm_end) { + mmap_read_unlock(current->mm); + return -EINVAL; + } + + ret = follow_pfn(vma, memmap->vma_base, &pfn); + mmap_read_unlock(current->mm); + if (ret < 0) { + dev_dbg(acrn_dev.this_device, + "Failed to lookup PFN at VMA:%pK.\n", (void *)memmap->vma_base); + return ret; + } + + return acrn_mm_region_add(vm, memmap->user_vm_pa, + PFN_PHYS(pfn), memmap->len, + ACRN_MEM_TYPE_WB, memmap->attr); + } + mmap_read_unlock(current->mm); + /* Get the page number of the map region */ nr_pages = memmap->len >> PAGE_SHIFT; pages = vzalloc(nr_pages * sizeof(struct page *)); base-commit: 73878e5eb1bd3c9656685ca60bc3a49d17311e0c -- 2.25.1

2 years, 8 months

3
3
0 0

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Linux-stable-mirror May 2022