May 2025 - Linux-stable-mirror

[merged mm-hotfixes-stable] tools-testing-selftests-fix-guard-region-test-tmpfs-assumption.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: tools/testing/selftests: fix guard region test tmpfs assumption has been removed from the -mm tree. Its filename was tools-testing-selftests-fix-guard-region-test-tmpfs-assumption.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Subject: tools/testing/selftests: fix guard region test tmpfs assumption Date: Fri, 25 Apr 2025 17:24:36 +0100 The current implementation of the guard region tests assume that /tmp is mounted as tmpfs, that is shmem. This isn't always the case, and at least one instance of a spurious test failure has been reported as a result. This assumption is unsafe, rushed and silly - and easily remedied by simply using memfd, so do so. We also have to fixup the readonly_file test to explicitly only be applicable to file-backed cases. Link: https://lkml.kernel.org/r/20250425162436.564002-1-lorenzo.stoakes@oracle.com Fixes: 272f37d3e99a ("tools/selftests: expand all guard region tests to file-backed") Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Reported-by: Ryan Roberts <ryan.roberts(a)arm.com> Closes: https://lore.kernel.org/linux-mm/a2d2766b-0ab4-437b-951a-8595a7506fe9@arm.c… Reviewed-by: Ryan Roberts <ryan.roberts(a)arm.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- tools/testing/selftests/mm/guard-regions.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) --- a/tools/testing/selftests/mm/guard-regions.c~tools-testing-selftests-fix-guard-region-test-tmpfs-assumption +++ a/tools/testing/selftests/mm/guard-regions.c @@ -271,12 +271,16 @@ FIXTURE_SETUP(guard_regions) self->page_size = (unsigned long)sysconf(_SC_PAGESIZE); setup_sighandler(); - if (variant->backing == ANON_BACKED) + switch (variant->backing) { + case ANON_BACKED: return; - - self->fd = open_file( - variant->backing == SHMEM_BACKED ? "/tmp/" : "", - self->path); + case LOCAL_FILE_BACKED: + self->fd = open_file("", self->path); + break; + case SHMEM_BACKED: + self->fd = memfd_create(self->path, 0); + break; + } /* We truncate file to at least 100 pages, tests can modify as needed. */ ASSERT_EQ(ftruncate(self->fd, 100 * self->page_size), 0); @@ -1696,7 +1700,7 @@ TEST_F(guard_regions, readonly_file) char *ptr; int i; - if (variant->backing == ANON_BACKED) + if (variant->backing != LOCAL_FILE_BACKED) SKIP(return, "Read-only test specific to file-backed"); /* Map shared so we can populate with pattern, populate it, unmap. */ _ Patches currently in -mm which might be from lorenzo.stoakes(a)oracle.com are maintainers-add-mm-gup-section.patch mm-vma-fix-incorrectly-disallowed-anonymous-vma-merges.patch tools-testing-add-procmap_query-helper-functions-in-mm-self-tests.patch tools-testing-selftests-assert-that-anon-merge-cases-behave-as-expected.patch mm-move-mmap-vma-locking-logic-into-specific-files.patch mm-establish-mm-vma_execc-for-shared-exec-mm-vma-functionality.patch mm-abstract-initial-stack-setup-to-mm-subsystem.patch mm-move-dup_mmap-to-mm.patch mm-perform-vma-allocation-freeing-duplication-in-mm.patch mm-introduce-new-mmap_prepare-file-callback.patch mm-secretmem-convert-to-mmap_prepare-hook.patch mm-vma-remove-mmap-retry-merge.patch

6 months

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[merged mm-hotfixes-stable] ocfs2-stop-quota-recovery-before-disabling-quotas.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: ocfs2: stop quota recovery before disabling quotas has been removed from the -mm tree. Its filename was ocfs2-stop-quota-recovery-before-disabling-quotas.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Jan Kara <jack(a)suse.cz> Subject: ocfs2: stop quota recovery before disabling quotas Date: Thu, 24 Apr 2025 15:45:13 +0200 Currently quota recovery is synchronized with unmount using sb->s_umount semaphore. That is however prone to deadlocks because flush_workqueue(osb->ocfs2_wq) called from umount code can wait for quota recovery to complete while ocfs2_finish_quota_recovery() waits for sb->s_umount semaphore. Grabbing of sb->s_umount semaphore in ocfs2_finish_quota_recovery() is only needed to protect that function from disabling of quotas from ocfs2_dismount_volume(). Handle this problem by disabling quota recovery early during unmount in ocfs2_dismount_volume() instead so that we can drop acquisition of sb->s_umount from ocfs2_finish_quota_recovery(). Link: https://lkml.kernel.org/r/20250424134515.18933-6-jack@suse.cz Fixes: 5f530de63cfc ("ocfs2: Use s_umount for quota recovery protection") Signed-off-by: Jan Kara <jack(a)suse.cz> Reported-by: Shichangkuo <shi.changkuo(a)h3c.com> Reported-by: Murad Masimov <m.masimov(a)mt-integration.ru> Reviewed-by: Heming Zhao <heming.zhao(a)suse.com> Tested-by: Heming Zhao <heming.zhao(a)suse.com> Acked-by: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: Changwei Ge <gechangwei(a)live.cn> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Jun Piao <piaojun(a)huawei.com> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Mark Fasheh <mark(a)fasheh.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/journal.c | 20 ++++++++++++++++++-- fs/ocfs2/journal.h | 1 + fs/ocfs2/ocfs2.h | 6 ++++++ fs/ocfs2/quota_local.c | 9 ++------- fs/ocfs2/super.c | 3 +++ 5 files changed, 30 insertions(+), 9 deletions(-) --- a/fs/ocfs2/journal.c~ocfs2-stop-quota-recovery-before-disabling-quotas +++ a/fs/ocfs2/journal.c @@ -225,6 +225,11 @@ out_lock: flush_workqueue(osb->ocfs2_wq); } +void ocfs2_recovery_disable_quota(struct ocfs2_super *osb) +{ + ocfs2_recovery_disable(osb, OCFS2_REC_QUOTA_WANT_DISABLE); +} + void ocfs2_recovery_exit(struct ocfs2_super *osb) { struct ocfs2_recovery_map *rm; @@ -1489,6 +1494,18 @@ static int __ocfs2_recovery_thread(void } } restart: + if (quota_enabled) { + mutex_lock(&osb->recovery_lock); + /* Confirm that recovery thread will no longer recover quotas */ + if (osb->recovery_state == OCFS2_REC_QUOTA_WANT_DISABLE) { + osb->recovery_state = OCFS2_REC_QUOTA_DISABLED; + wake_up(&osb->recovery_event); + } + if (osb->recovery_state >= OCFS2_REC_QUOTA_DISABLED) + quota_enabled = 0; + mutex_unlock(&osb->recovery_lock); + } + status = ocfs2_super_lock(osb, 1); if (status < 0) { mlog_errno(status); @@ -1592,8 +1609,7 @@ bail: mutex_unlock(&osb->recovery_lock); - if (quota_enabled) - kfree(rm_quota); + kfree(rm_quota); return status; } --- a/fs/ocfs2/journal.h~ocfs2-stop-quota-recovery-before-disabling-quotas +++ a/fs/ocfs2/journal.h @@ -148,6 +148,7 @@ void ocfs2_wait_for_recovery(struct ocfs int ocfs2_recovery_init(struct ocfs2_super *osb); void ocfs2_recovery_exit(struct ocfs2_super *osb); +void ocfs2_recovery_disable_quota(struct ocfs2_super *osb); int ocfs2_compute_replay_slots(struct ocfs2_super *osb); void ocfs2_free_replay_slots(struct ocfs2_super *osb); --- a/fs/ocfs2/ocfs2.h~ocfs2-stop-quota-recovery-before-disabling-quotas +++ a/fs/ocfs2/ocfs2.h @@ -310,6 +310,12 @@ void ocfs2_initialize_journal_triggers(s enum ocfs2_recovery_state { OCFS2_REC_ENABLED = 0, + OCFS2_REC_QUOTA_WANT_DISABLE, + /* + * Must be OCFS2_REC_QUOTA_WANT_DISABLE + 1 for + * ocfs2_recovery_disable_quota() to work. + */ + OCFS2_REC_QUOTA_DISABLED, OCFS2_REC_WANT_DISABLE, /* * Must be OCFS2_REC_WANT_DISABLE + 1 for ocfs2_recovery_exit() to work --- a/fs/ocfs2/quota_local.c~ocfs2-stop-quota-recovery-before-disabling-quotas +++ a/fs/ocfs2/quota_local.c @@ -453,8 +453,7 @@ out: /* Sync changes in local quota file into global quota file and * reinitialize local quota file. - * The function expects local quota file to be already locked and - * s_umount locked in shared mode. */ + * The function expects local quota file to be already locked. */ static int ocfs2_recover_local_quota_file(struct inode *lqinode, int type, struct ocfs2_quota_recovery *rec) @@ -588,7 +587,6 @@ int ocfs2_finish_quota_recovery(struct o { unsigned int ino[OCFS2_MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, LOCAL_GROUP_QUOTA_SYSTEM_INODE }; - struct super_block *sb = osb->sb; struct ocfs2_local_disk_dqinfo *ldinfo; struct buffer_head *bh; handle_t *handle; @@ -600,7 +598,6 @@ int ocfs2_finish_quota_recovery(struct o printk(KERN_NOTICE "ocfs2: Finishing quota recovery on device (%s) for " "slot %u\n", osb->dev_str, slot_num); - down_read(&sb->s_umount); for (type = 0; type < OCFS2_MAXQUOTAS; type++) { if (list_empty(&(rec->r_list[type]))) continue; @@ -677,7 +674,6 @@ out_put: break; } out: - up_read(&sb->s_umount); kfree(rec); return status; } @@ -843,8 +839,7 @@ static int ocfs2_local_free_info(struct ocfs2_release_local_quota_bitmaps(&oinfo->dqi_chunk); /* - * s_umount held in exclusive mode protects us against racing with - * recovery thread... + * ocfs2_dismount_volume() has already aborted quota recovery... */ if (oinfo->dqi_rec) { ocfs2_free_quota_recovery(oinfo->dqi_rec); --- a/fs/ocfs2/super.c~ocfs2-stop-quota-recovery-before-disabling-quotas +++ a/fs/ocfs2/super.c @@ -1812,6 +1812,9 @@ static void ocfs2_dismount_volume(struct /* Orphan scan should be stopped as early as possible */ ocfs2_orphan_scan_stop(osb); + /* Stop quota recovery so that we can disable quotas */ + ocfs2_recovery_disable_quota(osb); + ocfs2_disable_quotas(osb); /* All dquots should be freed by now */ _ Patches currently in -mm which might be from jack(a)suse.cz are

6 months

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[merged mm-hotfixes-stable] ocfs2-implement-handshaking-with-ocfs2-recovery-thread.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: ocfs2: implement handshaking with ocfs2 recovery thread has been removed from the -mm tree. Its filename was ocfs2-implement-handshaking-with-ocfs2-recovery-thread.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Jan Kara <jack(a)suse.cz> Subject: ocfs2: implement handshaking with ocfs2 recovery thread Date: Thu, 24 Apr 2025 15:45:12 +0200 We will need ocfs2 recovery thread to acknowledge transitions of recovery_state when disabling particular types of recovery. This is similar to what currently happens when disabling recovery completely, just more general. Implement the handshake and use it for exit from recovery. Link: https://lkml.kernel.org/r/20250424134515.18933-5-jack@suse.cz Fixes: 5f530de63cfc ("ocfs2: Use s_umount for quota recovery protection") Signed-off-by: Jan Kara <jack(a)suse.cz> Reviewed-by: Heming Zhao <heming.zhao(a)suse.com> Tested-by: Heming Zhao <heming.zhao(a)suse.com> Acked-by: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: Changwei Ge <gechangwei(a)live.cn> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Jun Piao <piaojun(a)huawei.com> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Mark Fasheh <mark(a)fasheh.com> Cc: Murad Masimov <m.masimov(a)mt-integration.ru> Cc: Shichangkuo <shi.changkuo(a)h3c.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/journal.c | 52 ++++++++++++++++++++++++++++--------------- fs/ocfs2/ocfs2.h | 4 +++ 2 files changed, 39 insertions(+), 17 deletions(-) --- a/fs/ocfs2/journal.c~ocfs2-implement-handshaking-with-ocfs2-recovery-thread +++ a/fs/ocfs2/journal.c @@ -190,31 +190,48 @@ int ocfs2_recovery_init(struct ocfs2_sup return 0; } -/* we can't grab the goofy sem lock from inside wait_event, so we use - * memory barriers to make sure that we'll see the null task before - * being woken up */ static int ocfs2_recovery_thread_running(struct ocfs2_super *osb) { - mb(); return osb->recovery_thread_task != NULL; } -void ocfs2_recovery_exit(struct ocfs2_super *osb) +static void ocfs2_recovery_disable(struct ocfs2_super *osb, + enum ocfs2_recovery_state state) { - struct ocfs2_recovery_map *rm; - - /* disable any new recovery threads and wait for any currently - * running ones to exit. Do this before setting the vol_state. */ mutex_lock(&osb->recovery_lock); - osb->recovery_state = OCFS2_REC_DISABLED; + /* + * If recovery thread is not running, we can directly transition to + * final state. + */ + if (!ocfs2_recovery_thread_running(osb)) { + osb->recovery_state = state + 1; + goto out_lock; + } + osb->recovery_state = state; + /* Wait for recovery thread to acknowledge state transition */ + wait_event_cmd(osb->recovery_event, + !ocfs2_recovery_thread_running(osb) || + osb->recovery_state >= state + 1, + mutex_unlock(&osb->recovery_lock), + mutex_lock(&osb->recovery_lock)); +out_lock: mutex_unlock(&osb->recovery_lock); - wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); - /* At this point, we know that no more recovery threads can be - * launched, so wait for any recovery completion work to - * complete. */ + /* + * At this point we know that no more recovery work can be queued so + * wait for any recovery completion work to complete. + */ if (osb->ocfs2_wq) flush_workqueue(osb->ocfs2_wq); +} + +void ocfs2_recovery_exit(struct ocfs2_super *osb) +{ + struct ocfs2_recovery_map *rm; + + /* disable any new recovery threads and wait for any currently + * running ones to exit. Do this before setting the vol_state. */ + ocfs2_recovery_disable(osb, OCFS2_REC_WANT_DISABLE); /* * Now that recovery is shut down, and the osb is about to be @@ -1569,7 +1586,8 @@ bail: ocfs2_free_replay_slots(osb); osb->recovery_thread_task = NULL; - mb(); /* sync with ocfs2_recovery_thread_running */ + if (osb->recovery_state == OCFS2_REC_WANT_DISABLE) + osb->recovery_state = OCFS2_REC_DISABLED; wake_up(&osb->recovery_event); mutex_unlock(&osb->recovery_lock); @@ -1585,13 +1603,13 @@ void ocfs2_recovery_thread(struct ocfs2_ int was_set = -1; mutex_lock(&osb->recovery_lock); - if (osb->recovery_state < OCFS2_REC_DISABLED) + if (osb->recovery_state < OCFS2_REC_WANT_DISABLE) was_set = ocfs2_recovery_map_set(osb, node_num); trace_ocfs2_recovery_thread(node_num, osb->node_num, osb->recovery_state, osb->recovery_thread_task, was_set); - if (osb->recovery_state == OCFS2_REC_DISABLED) + if (osb->recovery_state >= OCFS2_REC_WANT_DISABLE) goto out; if (osb->recovery_thread_task) --- a/fs/ocfs2/ocfs2.h~ocfs2-implement-handshaking-with-ocfs2-recovery-thread +++ a/fs/ocfs2/ocfs2.h @@ -310,6 +310,10 @@ void ocfs2_initialize_journal_triggers(s enum ocfs2_recovery_state { OCFS2_REC_ENABLED = 0, + OCFS2_REC_WANT_DISABLE, + /* + * Must be OCFS2_REC_WANT_DISABLE + 1 for ocfs2_recovery_exit() to work + */ OCFS2_REC_DISABLED, }; _ Patches currently in -mm which might be from jack(a)suse.cz are

6 months

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[merged mm-hotfixes-stable] ocfs2-switch-osb-disable_recovery-to-enum.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: ocfs2: switch osb->disable_recovery to enum has been removed from the -mm tree. Its filename was ocfs2-switch-osb-disable_recovery-to-enum.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Jan Kara <jack(a)suse.cz> Subject: ocfs2: switch osb->disable_recovery to enum Date: Thu, 24 Apr 2025 15:45:11 +0200 Patch series "ocfs2: Fix deadlocks in quota recovery", v3. This implements another approach to fixing quota recovery deadlocks. We avoid grabbing sb->s_umount semaphore from ocfs2_finish_quota_recovery() and instead stop quota recovery early in ocfs2_dismount_volume(). This patch (of 3): We will need more recovery states than just pure enable / disable to fix deadlocks with quota recovery. Switch osb->disable_recovery to enum. Link: https://lkml.kernel.org/r/20250424134301.1392-1-jack@suse.cz Link: https://lkml.kernel.org/r/20250424134515.18933-4-jack@suse.cz Fixes: 5f530de63cfc ("ocfs2: Use s_umount for quota recovery protection") Signed-off-by: Jan Kara <jack(a)suse.cz> Reviewed-by: Heming Zhao <heming.zhao(a)suse.com> Tested-by: Heming Zhao <heming.zhao(a)suse.com> Acked-by: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: Mark Fasheh <mark(a)fasheh.com> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Changwei Ge <gechangwei(a)live.cn> Cc: Jun Piao <piaojun(a)huawei.com> Cc: Murad Masimov <m.masimov(a)mt-integration.ru> Cc: Shichangkuo <shi.changkuo(a)h3c.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/journal.c | 14 ++++++++------ fs/ocfs2/ocfs2.h | 7 ++++++- 2 files changed, 14 insertions(+), 7 deletions(-) --- a/fs/ocfs2/journal.c~ocfs2-switch-osb-disable_recovery-to-enum +++ a/fs/ocfs2/journal.c @@ -174,7 +174,7 @@ int ocfs2_recovery_init(struct ocfs2_sup struct ocfs2_recovery_map *rm; mutex_init(&osb->recovery_lock); - osb->disable_recovery = 0; + osb->recovery_state = OCFS2_REC_ENABLED; osb->recovery_thread_task = NULL; init_waitqueue_head(&osb->recovery_event); @@ -206,7 +206,7 @@ void ocfs2_recovery_exit(struct ocfs2_su /* disable any new recovery threads and wait for any currently * running ones to exit. Do this before setting the vol_state. */ mutex_lock(&osb->recovery_lock); - osb->disable_recovery = 1; + osb->recovery_state = OCFS2_REC_DISABLED; mutex_unlock(&osb->recovery_lock); wait_event(osb->recovery_event, !ocfs2_recovery_thread_running(osb)); @@ -1582,14 +1582,16 @@ bail: void ocfs2_recovery_thread(struct ocfs2_super *osb, int node_num) { + int was_set = -1; + mutex_lock(&osb->recovery_lock); + if (osb->recovery_state < OCFS2_REC_DISABLED) + was_set = ocfs2_recovery_map_set(osb, node_num); trace_ocfs2_recovery_thread(node_num, osb->node_num, - osb->disable_recovery, osb->recovery_thread_task, - osb->disable_recovery ? - -1 : ocfs2_recovery_map_set(osb, node_num)); + osb->recovery_state, osb->recovery_thread_task, was_set); - if (osb->disable_recovery) + if (osb->recovery_state == OCFS2_REC_DISABLED) goto out; if (osb->recovery_thread_task) --- a/fs/ocfs2/ocfs2.h~ocfs2-switch-osb-disable_recovery-to-enum +++ a/fs/ocfs2/ocfs2.h @@ -308,6 +308,11 @@ enum ocfs2_journal_trigger_type { void ocfs2_initialize_journal_triggers(struct super_block *sb, struct ocfs2_triggers triggers[]); +enum ocfs2_recovery_state { + OCFS2_REC_ENABLED = 0, + OCFS2_REC_DISABLED, +}; + struct ocfs2_journal; struct ocfs2_slot_info; struct ocfs2_recovery_map; @@ -370,7 +375,7 @@ struct ocfs2_super struct ocfs2_recovery_map *recovery_map; struct ocfs2_replay_map *replay_map; struct task_struct *recovery_thread_task; - int disable_recovery; + enum ocfs2_recovery_state recovery_state; wait_queue_head_t checkpoint_event; struct ocfs2_journal *journal; unsigned long osb_commit_interval; _ Patches currently in -mm which might be from jack(a)suse.cz are

6 months

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[merged mm-hotfixes-stable] mm-userfaultfd-fix-uninitialized-output-field-for-eagain-race.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: mm/userfaultfd: fix uninitialized output field for -EAGAIN race has been removed from the -mm tree. Its filename was mm-userfaultfd-fix-uninitialized-output-field-for-eagain-race.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Peter Xu <peterx(a)redhat.com> Subject: mm/userfaultfd: fix uninitialized output field for -EAGAIN race Date: Thu, 24 Apr 2025 17:57:28 -0400 While discussing some userfaultfd relevant issues recently, Andrea noticed a potential ABI breakage with -EAGAIN on almost all userfaultfd ioctl()s. Quote from Andrea, explaining how -EAGAIN was processed, and how this should fix it (taking example of UFFDIO_COPY ioctl): The "mmap_changing" and "stale pmd" conditions are already reported as -EAGAIN written in the copy field, this does not change it. This change removes the subnormal case that left copy.copy uninitialized and required apps to explicitly set the copy field to get deterministic behavior (which is a requirement contrary to the documentation in both the manpage and source code). In turn there's no alteration to backwards compatibility as result of this change because userland will find the copy field consistently set to -EAGAIN, and not anymore sometime -EAGAIN and sometime uninitialized. Even then the change only can make a difference to non cooperative users of userfaultfd, so when UFFD_FEATURE_EVENT_* is enabled, which is not true for the vast majority of apps using userfaultfd or this unintended uninitialized field may have been noticed sooner. Meanwhile, since this bug existed for years, it also almost affects all ioctl()s that was introduced later. Besides UFFDIO_ZEROPAGE, these also get affected in the same way: - UFFDIO_CONTINUE - UFFDIO_POISON - UFFDIO_MOVE This patch should have fixed all of them. Link: https://lkml.kernel.org/r/20250424215729.194656-2-peterx@redhat.com Fixes: df2cc96e7701 ("userfaultfd: prevent non-cooperative events vs mcopy_atomic races") Fixes: f619147104c8 ("userfaultfd: add UFFDIO_CONTINUE ioctl") Fixes: fc71884a5f59 ("mm: userfaultfd: add new UFFDIO_POISON ioctl") Fixes: adef440691ba ("userfaultfd: UFFDIO_MOVE uABI") Signed-off-by: Peter Xu <peterx(a)redhat.com> Reported-by: Andrea Arcangeli <aarcange(a)redhat.com> Suggested-by: Andrea Arcangeli <aarcange(a)redhat.com> Reviewed-by: David Hildenbrand <david(a)redhat.com> Cc: Mike Rapoport <rppt(a)kernel.org> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Suren Baghdasaryan <surenb(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/userfaultfd.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) --- a/fs/userfaultfd.c~mm-userfaultfd-fix-uninitialized-output-field-for-eagain-race +++ a/fs/userfaultfd.c @@ -1585,8 +1585,11 @@ static int userfaultfd_copy(struct userf user_uffdio_copy = (struct uffdio_copy __user *) arg; ret = -EAGAIN; - if (atomic_read(&ctx->mmap_changing)) + if (unlikely(atomic_read(&ctx->mmap_changing))) { + if (unlikely(put_user(ret, &user_uffdio_copy->copy))) + return -EFAULT; goto out; + } ret = -EFAULT; if (copy_from_user(&uffdio_copy, user_uffdio_copy, @@ -1641,8 +1644,11 @@ static int userfaultfd_zeropage(struct u user_uffdio_zeropage = (struct uffdio_zeropage __user *) arg; ret = -EAGAIN; - if (atomic_read(&ctx->mmap_changing)) + if (unlikely(atomic_read(&ctx->mmap_changing))) { + if (unlikely(put_user(ret, &user_uffdio_zeropage->zeropage))) + return -EFAULT; goto out; + } ret = -EFAULT; if (copy_from_user(&uffdio_zeropage, user_uffdio_zeropage, @@ -1744,8 +1750,11 @@ static int userfaultfd_continue(struct u user_uffdio_continue = (struct uffdio_continue __user *)arg; ret = -EAGAIN; - if (atomic_read(&ctx->mmap_changing)) + if (unlikely(atomic_read(&ctx->mmap_changing))) { + if (unlikely(put_user(ret, &user_uffdio_continue->mapped))) + return -EFAULT; goto out; + } ret = -EFAULT; if (copy_from_user(&uffdio_continue, user_uffdio_continue, @@ -1801,8 +1810,11 @@ static inline int userfaultfd_poison(str user_uffdio_poison = (struct uffdio_poison __user *)arg; ret = -EAGAIN; - if (atomic_read(&ctx->mmap_changing)) + if (unlikely(atomic_read(&ctx->mmap_changing))) { + if (unlikely(put_user(ret, &user_uffdio_poison->updated))) + return -EFAULT; goto out; + } ret = -EFAULT; if (copy_from_user(&uffdio_poison, user_uffdio_poison, @@ -1870,8 +1882,12 @@ static int userfaultfd_move(struct userf user_uffdio_move = (struct uffdio_move __user *) arg; - if (atomic_read(&ctx->mmap_changing)) - return -EAGAIN; + ret = -EAGAIN; + if (unlikely(atomic_read(&ctx->mmap_changing))) { + if (unlikely(put_user(ret, &user_uffdio_move->move))) + return -EFAULT; + goto out; + } if (copy_from_user(&uffdio_move, user_uffdio_move, /* don't copy "move" last field */ _ Patches currently in -mm which might be from peterx(a)redhat.com are mm-selftests-add-a-test-to-verify-mmap_changing-race-with-eagain.patch

6 months

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[merged mm-hotfixes-stable] selftests-mm-compaction_test-support-platform-with-huge-mount-of-memory.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: selftests/mm: compaction_test: support platform with huge mount of memory has been removed from the -mm tree. Its filename was selftests-mm-compaction_test-support-platform-with-huge-mount-of-memory.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Feng Tang <feng.tang(a)linux.alibaba.com> Subject: selftests/mm: compaction_test: support platform with huge mount of memory Date: Wed, 23 Apr 2025 18:36:45 +0800 When running mm selftest to verify mm patches, 'compaction_test' case failed on an x86 server with 1TB memory. And the root cause is that it has too much free memory than what the test supports. The test case tries to allocate 100000 huge pages, which is about 200 GB for that x86 server, and when it succeeds, it expects it's large than 1/3 of 80% of the free memory in system. This logic only works for platform with 750 GB ( 200 / (1/3) / 80% ) or less free memory, and may raise false alarm for others. Fix it by changing the fixed page number to self-adjustable number according to the real number of free memory. Link: https://lkml.kernel.org/r/20250423103645.2758-1-feng.tang@linux.alibaba.com Fixes: bd67d5c15cc1 ("Test compaction of mlocked memory") Signed-off-by: Feng Tang <feng.tang(a)linux.alibaba.com> Acked-by: Dev Jain <dev.jain(a)arm.com> Reviewed-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Tested-by: Baolin Wang <baolin.wang(a)inux.alibaba.com> Cc: Shuah Khan <shuah(a)kernel.org> Cc: Sri Jayaramappa <sjayaram(a)akamai.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- tools/testing/selftests/mm/compaction_test.c | 19 ++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) --- a/tools/testing/selftests/mm/compaction_test.c~selftests-mm-compaction_test-support-platform-with-huge-mount-of-memory +++ a/tools/testing/selftests/mm/compaction_test.c @@ -90,6 +90,8 @@ int check_compaction(unsigned long mem_f int compaction_index = 0; char nr_hugepages[20] = {0}; char init_nr_hugepages[24] = {0}; + char target_nr_hugepages[24] = {0}; + int slen; snprintf(init_nr_hugepages, sizeof(init_nr_hugepages), "%lu", initial_nr_hugepages); @@ -106,11 +108,18 @@ int check_compaction(unsigned long mem_f goto out; } - /* Request a large number of huge pages. The Kernel will allocate - as much as it can */ - if (write(fd, "100000", (6*sizeof(char))) != (6*sizeof(char))) { - ksft_print_msg("Failed to write 100000 to /proc/sys/vm/nr_hugepages: %s\n", - strerror(errno)); + /* + * Request huge pages for about half of the free memory. The Kernel + * will allocate as much as it can, and we expect it will get at least 1/3 + */ + nr_hugepages_ul = mem_free / hugepage_size / 2; + snprintf(target_nr_hugepages, sizeof(target_nr_hugepages), + "%lu", nr_hugepages_ul); + + slen = strlen(target_nr_hugepages); + if (write(fd, target_nr_hugepages, slen) != slen) { + ksft_print_msg("Failed to write %lu to /proc/sys/vm/nr_hugepages: %s\n", + nr_hugepages_ul, strerror(errno)); goto close_fd; } _ Patches currently in -mm which might be from feng.tang(a)linux.alibaba.com are

6 months

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[merged mm-hotfixes-stable] v2-ocfs2-fix-panic-in-failed-foilio-allocation.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: ocfs2: fix panic in failed foilio allocation has been removed from the -mm tree. Its filename was v2-ocfs2-fix-panic-in-failed-foilio-allocation.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Mark Tinguely <mark.tinguely(a)oracle.com> Subject: ocfs2: fix panic in failed foilio allocation Date: Fri, 11 Apr 2025 11:31:24 -0500 commit 7e119cff9d0a ("ocfs2: convert w_pages to w_folios") and commit 9a5e08652dc4b ("ocfs2: use an array of folios instead of an array of pages") save -ENOMEM in the folio array upon allocation failure and call the folio array free code. The folio array free code expects either valid folio pointers or NULL. Finding the -ENOMEM will result in a panic. Fix by NULLing the error folio entry. Link: https://lkml.kernel.org/r/c879a52b-835c-4fa0-902b-8b2e9196dcbd@oracle.com Fixes: 7e119cff9d0a ("ocfs2: convert w_pages to w_folios") Fixes: 9a5e08652dc4b ("ocfs2: use an array of folios instead of an array of pages") Signed-off-by: Mark Tinguely <mark.tinguely(a)oracle.com> Reviewed-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Changwei Ge <gechangwei(a)live.cn> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Mark Fasheh <mark(a)fasheh.com> Cc: Nathan Chancellor <nathan(a)kernel.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/alloc.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/ocfs2/alloc.c~v2-ocfs2-fix-panic-in-failed-foilio-allocation +++ a/fs/ocfs2/alloc.c @@ -6918,6 +6918,7 @@ static int ocfs2_grab_folios(struct inod if (IS_ERR(folios[numfolios])) { ret = PTR_ERR(folios[numfolios]); mlog_errno(ret); + folios[numfolios] = NULL; goto out; } _ Patches currently in -mm which might be from mark.tinguely(a)oracle.com are

6 months

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[merged mm-hotfixes-stable] mm-huge_memory-fix-dereferencing-invalid-pmd-migration-entry.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: mm/huge_memory: fix dereferencing invalid pmd migration entry has been removed from the -mm tree. Its filename was mm-huge_memory-fix-dereferencing-invalid-pmd-migration-entry.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Gavin Guo <gavinguo(a)igalia.com> Subject: mm/huge_memory: fix dereferencing invalid pmd migration entry Date: Mon, 21 Apr 2025 19:35:36 +0800 When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent this invalid access, it is necessary to check the PMD migration entry and return early. In this context, there is no need to use pmd_to_swp_entry and pfn_swap_entry_to_page to verify the equality of the target folio. Since the PMD migration entry is locked, it cannot be served as the target. Mailing list discussion and explanation from Hugh Dickins: "An anon_vma lookup points to a location which may contain the folio of interest, but might instead contain another folio: and weeding out those other folios is precisely what the "folio != pmd_folio((*pmd)" check (and the "risk of replacing the wrong folio" comment a few lines above it) is for." BUG: unable to handle page fault for address: ffffea60001db008 CPU: 0 UID: 0 PID: 2199114 Comm: tee Not tainted 6.14.0+ #4 NONE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:split_huge_pmd_locked+0x3b5/0x2b60 Call Trace: <TASK> try_to_migrate_one+0x28c/0x3730 rmap_walk_anon+0x4f6/0x770 unmap_folio+0x196/0x1f0 split_huge_page_to_list_to_order+0x9f6/0x1560 deferred_split_scan+0xac5/0x12a0 shrinker_debugfs_scan_write+0x376/0x470 full_proxy_write+0x15c/0x220 vfs_write+0x2fc/0xcb0 ksys_write+0x146/0x250 do_syscall_64+0x6a/0x120 entry_SYSCALL_64_after_hwframe+0x76/0x7e The bug is found by syzkaller on an internal kernel, then confirmed on upstream. Link: https://lkml.kernel.org/r/20250421113536.3682201-1-gavinguo@igalia.com Link: https://lore.kernel.org/all/20250414072737.1698513-1-gavinguo@igalia.com/ Link: https://lore.kernel.org/all/20250418085802.2973519-1-gavinguo@igalia.com/ Fixes: 84c3fc4e9c56 ("mm: thp: check pmd migration entry in common path") Signed-off-by: Gavin Guo <gavinguo(a)igalia.com> Acked-by: David Hildenbrand <david(a)redhat.com> Acked-by: Hugh Dickins <hughd(a)google.com> Acked-by: Zi Yan <ziy(a)nvidia.com> Reviewed-by: Gavin Shan <gshan(a)redhat.com> Cc: Florent Revest <revest(a)google.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Miaohe Lin <linmiaohe(a)huawei.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/huge_memory.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) --- a/mm/huge_memory.c~mm-huge_memory-fix-dereferencing-invalid-pmd-migration-entry +++ a/mm/huge_memory.c @@ -3075,6 +3075,8 @@ static void __split_huge_pmd_locked(stru void split_huge_pmd_locked(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd, bool freeze, struct folio *folio) { + bool pmd_migration = is_pmd_migration_entry(*pmd); + VM_WARN_ON_ONCE(folio && !folio_test_pmd_mappable(folio)); VM_WARN_ON_ONCE(!IS_ALIGNED(address, HPAGE_PMD_SIZE)); VM_WARN_ON_ONCE(folio && !folio_test_locked(folio)); @@ -3085,9 +3087,12 @@ void split_huge_pmd_locked(struct vm_are * require a folio to check the PMD against. Otherwise, there * is a risk of replacing the wrong folio. */ - if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd) || - is_pmd_migration_entry(*pmd)) { - if (folio && folio != pmd_folio(*pmd)) + if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd) || pmd_migration) { + /* + * Do not apply pmd_folio() to a migration entry; and folio lock + * guarantees that it must be of the wrong folio anyway. + */ + if (folio && (pmd_migration || folio != pmd_folio(*pmd))) return; __split_huge_pmd_locked(vma, pmd, address, freeze); } _ Patches currently in -mm which might be from gavinguo(a)igalia.com are mm-huge_memory-adjust-try_to_migrate_one-and-split_huge_pmd_locked.patch mm-huge_memory-remove-useless-folio-pointers-passing.patch

6 months

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[merged mm-hotfixes-stable] ocfs2-fix-the-issue-with-discontiguous-allocation-in-the-global_bitmap.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: ocfs2: fix the issue with discontiguous allocation in the global_bitmap has been removed from the -mm tree. Its filename was ocfs2-fix-the-issue-with-discontiguous-allocation-in-the-global_bitmap.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Heming Zhao <heming.zhao(a)suse.com> Subject: ocfs2: fix the issue with discontiguous allocation in the global_bitmap Date: Mon, 14 Apr 2025 14:01:23 +0800 commit 4eb7b93e0310 ("ocfs2: improve write IO performance when fragmentation is high") introduced another regression. The following ocfs2-test case can trigger this issue: > discontig_runner.sh => activate_discontig_bg.sh => resv_unwritten: > ${RESV_UNWRITTEN_BIN} -f ${WORK_PLACE}/large_testfile -s 0 -l \ > $((${FILE_MAJOR_SIZE_M}*1024*1024)) In my env, test disk size (by "fdisk -l <dev>"): > 53687091200 bytes, 104857600 sectors. Above command is: > /usr/local/ocfs2-test/bin/resv_unwritten -f \ > /mnt/ocfs2/ocfs2-activate-discontig-bg-dir/large_testfile -s 0 -l \ > 53187969024 Error log: > [*] Reserve 50724M space for a LARGE file, reserve 200M space for future test. > ioctl error 28: "No space left on device" > resv allocation failed Unknown error -1 > reserve unwritten region from 0 to 53187969024. Call flow: __ocfs2_change_file_space //by ioctl OCFS2_IOC_RESVSP64 ocfs2_allocate_unwritten_extents //start:0 len:53187969024 while() + ocfs2_get_clusters //cpos:0, alloc_size:1623168 (cluster number) + ocfs2_extend_allocation + ocfs2_lock_allocators | + choose OCFS2_AC_USE_MAIN & ocfs2_cluster_group_search | + ocfs2_add_inode_data ocfs2_add_clusters_in_btree __ocfs2_claim_clusters ocfs2_claim_suballoc_bits + During the allocation of the final part of the large file (after ~47GB), no chain had the required contiguous bits_wanted. Consequently, the allocation failed. How to fix: When OCFS2 is encountering fragmented allocation, the file system should stop attempting bits_wanted contiguous allocation and instead provide the largest available contiguous free bits from the cluster groups. Link: https://lkml.kernel.org/r/20250414060125.19938-2-heming.zhao@suse.com Fixes: 4eb7b93e0310 ("ocfs2: improve write IO performance when fragmentation is high") Signed-off-by: Heming Zhao <heming.zhao(a)suse.com> Reported-by: Gautham Ananthakrishna <gautham.ananthakrishna(a)oracle.com> Reviewed-by: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: Mark Fasheh <mark(a)fasheh.com> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Changwei Ge <gechangwei(a)live.cn> Cc: Jun Piao <piaojun(a)huawei.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/suballoc.c | 38 ++++++++++++++++++++++++++++++++------ fs/ocfs2/suballoc.h | 1 + 2 files changed, 33 insertions(+), 6 deletions(-) --- a/fs/ocfs2/suballoc.c~ocfs2-fix-the-issue-with-discontiguous-allocation-in-the-global_bitmap +++ a/fs/ocfs2/suballoc.c @@ -698,10 +698,12 @@ static int ocfs2_block_group_alloc(struc bg_bh = ocfs2_block_group_alloc_contig(osb, handle, alloc_inode, ac, cl); - if (PTR_ERR(bg_bh) == -ENOSPC) + if (PTR_ERR(bg_bh) == -ENOSPC) { + ac->ac_which = OCFS2_AC_USE_MAIN_DISCONTIG; bg_bh = ocfs2_block_group_alloc_discontig(handle, alloc_inode, ac, cl); + } if (IS_ERR(bg_bh)) { status = PTR_ERR(bg_bh); bg_bh = NULL; @@ -1794,6 +1796,7 @@ static int ocfs2_search_chain(struct ocf { int status; u16 chain; + u32 contig_bits; u64 next_group; struct inode *alloc_inode = ac->ac_inode; struct buffer_head *group_bh = NULL; @@ -1819,10 +1822,21 @@ static int ocfs2_search_chain(struct ocf status = -ENOSPC; /* for now, the chain search is a bit simplistic. We just use * the 1st group with any empty bits. */ - while ((status = ac->ac_group_search(alloc_inode, group_bh, - bits_wanted, min_bits, - ac->ac_max_block, - res)) == -ENOSPC) { + while (1) { + if (ac->ac_which == OCFS2_AC_USE_MAIN_DISCONTIG) { + contig_bits = le16_to_cpu(bg->bg_contig_free_bits); + if (!contig_bits) + contig_bits = ocfs2_find_max_contig_free_bits(bg->bg_bitmap, + le16_to_cpu(bg->bg_bits), 0); + if (bits_wanted > contig_bits && contig_bits >= min_bits) + bits_wanted = contig_bits; + } + + status = ac->ac_group_search(alloc_inode, group_bh, + bits_wanted, min_bits, + ac->ac_max_block, res); + if (status != -ENOSPC) + break; if (!bg->bg_next_group) break; @@ -1982,6 +1996,7 @@ static int ocfs2_claim_suballoc_bits(str victim = ocfs2_find_victim_chain(cl); ac->ac_chain = victim; +search: status = ocfs2_search_chain(ac, handle, bits_wanted, min_bits, res, &bits_left); if (!status) { @@ -2022,6 +2037,16 @@ static int ocfs2_claim_suballoc_bits(str } } + /* Chains can't supply the bits_wanted contiguous space. + * We should switch to using every single bit when allocating + * from the global bitmap. */ + if (i == le16_to_cpu(cl->cl_next_free_rec) && + status == -ENOSPC && ac->ac_which == OCFS2_AC_USE_MAIN) { + ac->ac_which = OCFS2_AC_USE_MAIN_DISCONTIG; + ac->ac_chain = victim; + goto search; + } + set_hint: if (status != -ENOSPC) { /* If the next search of this group is not likely to @@ -2365,7 +2390,8 @@ int __ocfs2_claim_clusters(handle_t *han BUG_ON(ac->ac_bits_given >= ac->ac_bits_wanted); BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL - && ac->ac_which != OCFS2_AC_USE_MAIN); + && ac->ac_which != OCFS2_AC_USE_MAIN + && ac->ac_which != OCFS2_AC_USE_MAIN_DISCONTIG); if (ac->ac_which == OCFS2_AC_USE_LOCAL) { WARN_ON(min_clusters > 1); --- a/fs/ocfs2/suballoc.h~ocfs2-fix-the-issue-with-discontiguous-allocation-in-the-global_bitmap +++ a/fs/ocfs2/suballoc.h @@ -29,6 +29,7 @@ struct ocfs2_alloc_context { #define OCFS2_AC_USE_MAIN 2 #define OCFS2_AC_USE_INODE 3 #define OCFS2_AC_USE_META 4 +#define OCFS2_AC_USE_MAIN_DISCONTIG 5 u32 ac_which; /* these are used by the chain search */ _ Patches currently in -mm which might be from heming.zhao(a)suse.com are

6 months

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+ x86-kexec-fix-potential-cmem-ranges-out-of-bounds.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: x86/kexec: fix potential cmem->ranges out of bounds has been added to the -mm mm-hotfixes-unstable branch. Its filename is x86-kexec-fix-potential-cmem-ranges-out-of-bounds.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: fuqiang wang <fuqiang.wang(a)easystack.cn> Subject: x86/kexec: fix potential cmem->ranges out of bounds Date: Mon, 8 Jan 2024 21:06:47 +0800 In memmap_exclude_ranges(), elfheader will be excluded from crashk_res. In the current x86 architecture code, the elfheader is always allocated at crashk_res.start. It seems that there won't be a new split range. But it depends on the allocation position of elfheader in crashk_res. To avoid potential out of bounds in future, add a extra slot. The similar issue also exists in fill_up_crash_elf_data(). The range to be excluded is [0, 1M], start (0) is special and will not appear in the middle of existing cmem->ranges[]. But in cast the low 1M could be changed in the future, add a extra slot too. Without this patch, kdump kernel will fail to be loaded by kexec_file_load, [ 139.736948] UBSAN: array-index-out-of-bounds in arch/x86/kernel/crash.c:350:25 [ 139.742360] index 0 is out of range for type 'range [*]' [ 139.745695] CPU: 0 UID: 0 PID: 5778 Comm: kexec Not tainted 6.15.0-0.rc3.20250425git02ddfb981de8.32.fc43.x86_64 #1 PREEMPT(lazy) [ 139.745698] Hardware name: Amazon EC2 c5.large/, BIOS 1.0 10/16/2017 [ 139.745699] Call Trace: [ 139.745700] <TASK> [ 139.745701] dump_stack_lvl+0x5d/0x80 [ 139.745706] ubsan_epilogue+0x5/0x2b [ 139.745709] __ubsan_handle_out_of_bounds.cold+0x54/0x59 [ 139.745711] crash_setup_memmap_entries+0x2d9/0x330 [ 139.745716] setup_boot_parameters+0xf8/0x6a0 [ 139.745720] bzImage64_load+0x41b/0x4e0 [ 139.745722] ? find_next_iomem_res+0x109/0x140 [ 139.745727] ? locate_mem_hole_callback+0x109/0x170 [ 139.745737] kimage_file_alloc_init+0x1ef/0x3e0 [ 139.745740] __do_sys_kexec_file_load+0x180/0x2f0 [ 139.745742] do_syscall_64+0x7b/0x160 [ 139.745745] ? do_user_addr_fault+0x21a/0x690 [ 139.745747] ? exc_page_fault+0x7e/0x1a0 [ 139.745749] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 139.745751] RIP: 0033:0x7f7712c84e4d Previously discussed link: [1] https://lore.kernel.org/kexec/ZXk2oBf%2FT1Ul6o0c@MiWiFi-R3L-srv/ [2] https://lore.kernel.org/kexec/273284e8-7680-4f5f-8065-c5d780987e59@easystac… [3] https://lore.kernel.org/kexec/ZYQ6O%2F57sHAPxTHm@MiWiFi-R3L-srv/ Link: https://lkml.kernel.org/r/20240108130720.228478-1-fuqiang.wang@easystack.cn Signed-off-by: fuqiang wang <fuqiang.wang(a)easystack.cn> Acked-by: Baoquan He <bhe(a)redhat.com> Reported-by: Coiby Xu <coxu(a)redhat.com> Closes: https://lkml.kernel.org/r/4de3c2onosr7negqnfhekm4cpbklzmsimgdfv33c52dktqpza… Cc: Vivek Goyal <vgoyal(a)redhat.com> Cc: Dave Young <dyoung(a)redhat.com> Cc: <x86(a)kernel.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- arch/x86/kernel/crash.c | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) --- a/arch/x86/kernel/crash.c~x86-kexec-fix-potential-cmem-ranges-out-of-bounds +++ a/arch/x86/kernel/crash.c @@ -165,8 +165,18 @@ static struct crash_mem *fill_up_crash_e /* * Exclusion of crash region and/or crashk_low_res may cause * another range split. So add extra two slots here. + * + * Exclusion of low 1M may not cause another range split, because the + * range of exclude is [0, 1M] and the condition for splitting a new + * region is that the start, end parameters are both in a certain + * existing region in cmem and cannot be equal to existing region's + * start or end. Obviously, the start of [0, 1M] cannot meet this + * condition. + * + * But in order to lest the low 1M could be changed in the future, + * (e.g. [stare, 1M]), add a extra slot. */ - nr_ranges += 2; + nr_ranges += 3; cmem = vzalloc(struct_size(cmem, ranges, nr_ranges)); if (!cmem) return NULL; @@ -298,9 +308,16 @@ int crash_setup_memmap_entries(struct ki struct crash_memmap_data cmd; struct crash_mem *cmem; - cmem = vzalloc(struct_size(cmem, ranges, 1)); + /* + * In the current x86 architecture code, the elfheader is always + * allocated at crashk_res.start. But it depends on the allocation + * position of elfheader in crashk_res. To avoid potential out of + * bounds in future, add a extra slot. + */ + cmem = vzalloc(struct_size(cmem, ranges, 2)); if (!cmem) return -ENOMEM; + cmem->max_nr_ranges = 2; memset(&cmd, 0, sizeof(struct crash_memmap_data)); cmd.params = params; _ Patches currently in -mm which might be from fuqiang.wang(a)easystack.cn are x86-kexec-fix-potential-cmem-ranges-out-of-bounds.patch

6 months

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[PATCH] wifi: mt76: mt7925: fix missing hdr_trans_tlv command for broadcast wtbl

by Mingyen Hsieh

From: Ming Yen Hsieh <mingyen.hsieh(a)mediatek.com> The hdr_trans_tlv function call has been moved inside the conditional block to ensure it is executed when info->enable is true. Cc: stable(a)vger.kernel.org Fixes: cb1353ef3473 ("wifi: mt76: mt7925: integrate *mlo_sta_cmd and *sta_cmd") Signed-off-by: Ming Yen Hsieh <mingyen.hsieh(a)mediatek.com> --- drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c index a42b584634ab..fd756f0d18f8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c @@ -2183,14 +2183,14 @@ mt7925_mcu_sta_cmd(struct mt76_phy *phy, mt7925_mcu_sta_mld_tlv(skb, info->vif, info->link_sta->sta); mt7925_mcu_sta_eht_mld_tlv(skb, info->vif, info->link_sta->sta); } - - mt7925_mcu_sta_hdr_trans_tlv(skb, info->vif, info->link_sta); } if (!info->enable) { mt7925_mcu_sta_remove_tlv(skb); mt76_connac_mcu_add_tlv(skb, STA_REC_MLD_OFF, sizeof(struct tlv)); + } else { + mt7925_mcu_sta_hdr_trans_tlv(skb, info->vif, info->link_sta); } return mt76_mcu_skb_send_msg(dev, skb, info->cmd, true); -- 2.34.1

6 months

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+ mm-fix-vm_uffd_minor-==-vm_shadow_stack-on-userfaultfd=y-arm64_gcs=y.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm: fix VM_UFFD_MINOR == VM_SHADOW_STACK on USERFAULTFD=y && ARM64_GCS=y has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-fix-vm_uffd_minor-==-vm_shadow_stack-on-userfaultfd=y-arm64_gcs=y.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Florent Revest <revest(a)chromium.org> Subject: mm: fix VM_UFFD_MINOR == VM_SHADOW_STACK on USERFAULTFD=y && ARM64_GCS=y Date: Wed, 7 May 2025 15:09:57 +0200 On configs with CONFIG_ARM64_GCS=y, VM_SHADOW_STACK is bit 38. On configs with CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y (selected by CONFIG_ARM64 when CONFIG_USERFAULTFD=y), VM_UFFD_MINOR is _also_ bit 38. This bit being shared by two different VMA flags could lead to all sorts of unintended behaviors. Presumably, a process could maybe call into userfaultfd in a way that disables the shadow stack vma flag. I can't think of any attack where this would help (presumably, if an attacker tries to disable shadow stacks, they are trying to hijack control flow so can't arbitrarily call into userfaultfd yet anyway) but this still feels somewhat scary. Link: https://lkml.kernel.org/r/20250507131000.1204175-2-revest@chromium.org Fixes: ae80e1629aea ("mm: Define VM_SHADOW_STACK for arm64 when we support GCS") Signed-off-by: Florent Revest <revest(a)chromium.org> Reviewed-by: Mark Brown <broonie(a)kernel.org> Cc: Borislav Betkov <bp(a)alien8.de> Cc: Brendan Jackman <jackmanb(a)google.com> Cc: Catalin Marinas <catalin.marinas(a)arm.com> Cc: Florent Revest <revest(a)chromium.org> Cc: "H. Peter Anvin" <hpa(a)zytor.com> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Thiago Jung Bauermann <thiago.bauermann(a)linaro.org> Cc: Thomas Gleinxer <tglx(a)linutronix.de> Cc: Will Deacon <will(a)kernel.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/mm.h~mm-fix-vm_uffd_minor-==-vm_shadow_stack-on-userfaultfd=y-arm64_gcs=y +++ a/include/linux/mm.h @@ -385,7 +385,7 @@ extern unsigned int kobjsize(const void #endif #ifdef CONFIG_HAVE_ARCH_USERFAULTFD_MINOR -# define VM_UFFD_MINOR_BIT 38 +# define VM_UFFD_MINOR_BIT 41 # define VM_UFFD_MINOR BIT(VM_UFFD_MINOR_BIT) /* UFFD minor faults */ #else /* !CONFIG_HAVE_ARCH_USERFAULTFD_MINOR */ # define VM_UFFD_MINOR VM_NONE _ Patches currently in -mm which might be from revest(a)chromium.org are mm-fix-vm_uffd_minor-==-vm_shadow_stack-on-userfaultfd=y-arm64_gcs=y.patch

6 months

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+ mm-mmap-map-map_stack-to-vm_nohugepage-only-if-thp-is-enabled.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm: mmap: map MAP_STACK to VM_NOHUGEPAGE only if THP is enabled has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-mmap-map-map_stack-to-vm_nohugepage-only-if-thp-is-enabled.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Ignacio Moreno Gonzalez <Ignacio.MorenoGonzalez(a)kuka.com> Subject: mm: mmap: map MAP_STACK to VM_NOHUGEPAGE only if THP is enabled Date: Wed, 07 May 2025 15:28:06 +0200 commit c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE") maps the mmap option MAP_STACK to VM_NOHUGEPAGE. This is also done if CONFIG_TRANSPARENT_HUGEPAGE is not defined. But in that case, the VM_NOHUGEPAGE does not make sense. I discovered this issue when trying to use the tool CRIU to checkpoint and restore a container. Our running kernel is compiled without CONFIG_TRANSPARENT_HUGEPAGE. CRIU parses the output of /proc/<pid>/smaps and saves the "nh" flag. When trying to restore the container, CRIU fails to restore the "nh" mappings, since madvise() MADV_NOHUGEPAGE always returns an error because CONFIG_TRANSPARENT_HUGEPAGE is not defined. Link: https://lkml.kernel.org/r/20250507-map-map_stack-to-vm_nohugepage-only-if-t… Fixes: c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE") Signed-off-by: Ignacio Moreno Gonzalez <Ignacio.MorenoGonzalez(a)kuka.com> Acked-by: David Hildenbrand <david(a)redhat.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Reviewed-by: Yang Shi <yang(a)os.amperecomputing.com> Reviewed-by: Liam R. Howlett <Liam.Howlett(a)oracle.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/mman.h | 2 ++ 1 file changed, 2 insertions(+) --- a/include/linux/mman.h~mm-mmap-map-map_stack-to-vm_nohugepage-only-if-thp-is-enabled +++ a/include/linux/mman.h @@ -155,7 +155,9 @@ calc_vm_flag_bits(struct file *file, uns return _calc_vm_trans(flags, MAP_GROWSDOWN, VM_GROWSDOWN ) | _calc_vm_trans(flags, MAP_LOCKED, VM_LOCKED ) | _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) | +#ifdef CONFIG_TRANSPARENT_HUGEPAGE _calc_vm_trans(flags, MAP_STACK, VM_NOHUGEPAGE) | +#endif arch_calc_vm_flag_bits(file, flags); } _ Patches currently in -mm which might be from Ignacio.MorenoGonzalez(a)kuka.com are mm-mmap-map-map_stack-to-vm_nohugepage-only-if-thp-is-enabled.patch

6 months

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[to-be-updated] mm-vmscan-avoid-signedness-error-for-gcc-54.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: mm: vmscan: avoid signedness error for GCC 5.4 has been removed from the -mm tree. Its filename was mm-vmscan-avoid-signedness-error-for-gcc-54.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: WangYuli <wangyuli(a)uniontech.com> Subject: mm: vmscan: avoid signedness error for GCC 5.4 Date: Wed, 7 May 2025 12:08:27 +0800 To the GCC 5.4 compiler, (MAX_NR_TIERS - 1) (i.e., (4U - 1)) is unsigned, whereas tier is a signed integer. Then, the __types_ok check within the __careful_cmp_once macro failed, triggered BUILD_BUG_ON. Use min_t instead of min to circumvent this compiler error. Fix follow error with gcc 5.4: mm/vmscan.c: In function `read_ctrl_pos': mm/vmscan.c:3166:728: error: call to `__compiletime_assert_887' declared with attribute error: min(tier, 4U - 1) signedness error Link: https://lkml.kernel.org/r/62726950F697595A+20250507040827.1147510-1-wangyul… Fixes: 37a260870f2c ("mm/mglru: rework type selection") Signed-off-by: WangYuli <wangyuli(a)uniontech.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: David Laight <david.laight.linux(a)gmail.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/vmscan.c~mm-vmscan-avoid-signedness-error-for-gcc-54 +++ a/mm/vmscan.c @@ -3163,7 +3163,7 @@ static void read_ctrl_pos(struct lruvec pos->gain = gain; pos->refaulted = pos->total = 0; - for (i = tier % MAX_NR_TIERS; i <= min(tier, MAX_NR_TIERS - 1); i++) { + for (i = tier % MAX_NR_TIERS; i <= min_t(int, tier, MAX_NR_TIERS - 1); i++) { pos->refaulted += lrugen->avg_refaulted[type][i] + atomic_long_read(&lrugen->refaulted[hist][type][i]); pos->total += lrugen->avg_total[type][i] + _ Patches currently in -mm which might be from wangyuli(a)uniontech.com are ocfs2-o2net_idle_timer-rename-del_timer_sync-in-comment.patch treewide-fix-typo-previlege.patch

6 months

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+ mm-page_alloc-fix-race-condition-in-unaccepted-memory-handling.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/page_alloc: fix race condition in unaccepted memory handling has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-page_alloc-fix-race-condition-in-unaccepted-memory-handling.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Kirill A. Shutemov" <kirill.shutemov(a)linux.intel.com> Subject: mm/page_alloc: fix race condition in unaccepted memory handling Date: Tue, 6 May 2025 16:32:07 +0300 The page allocator tracks the number of zones that have unaccepted memory using static_branch_enc/dec() and uses that static branch in hot paths to determine if it needs to deal with unaccepted memory. Borislav and Thomas pointed out that the tracking is racy: operations on static_branch are not serialized against adding/removing unaccepted pages to/from the zone. Sanity checks inside static_branch machinery detects it: WARNING: CPU: 0 PID: 10 at kernel/jump_label.c:276 __static_key_slow_dec_cpuslocked+0x8e/0xa0 The comment around the WARN() explains the problem: /* * Warn about the '-1' case though; since that means a * decrement is concurrent with a first (0->1) increment. IOW * people are trying to disable something that wasn't yet fully * enabled. This suggests an ordering problem on the user side. */ The effect of this static_branch optimization is only visible on microbenchmark. Instead of adding more complexity around it, remove it altogether. Link: https://lkml.kernel.org/r/20250506133207.1009676-1-kirill.shutemov@linux.in… Signed-off-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Fixes: dcdfdd40fa82 ("mm: Add support for unaccepted memory") Link: https://lore.kernel.org/all/20250506092445.GBaBnVXXyvnazly6iF@fat_crate.loc… Reported-by: Borislav Petkov <bp(a)alien8.de> Tested-by: Borislav Petkov (AMD) <bp(a)alien8.de> Reported-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Suren Baghdasaryan <surenb(a)google.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Brendan Jackman <jackmanb(a)google.com> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: <stable(a)vger.kernel.org> [6.5+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/internal.h | 1 mm/mm_init.c | 1 mm/page_alloc.c | 47 ---------------------------------------------- 3 files changed, 49 deletions(-) --- a/mm/internal.h~mm-page_alloc-fix-race-condition-in-unaccepted-memory-handling +++ a/mm/internal.h @@ -1590,7 +1590,6 @@ unsigned long move_page_tables(struct pa #ifdef CONFIG_UNACCEPTED_MEMORY void accept_page(struct page *page); -void unaccepted_cleanup_work(struct work_struct *work); #else /* CONFIG_UNACCEPTED_MEMORY */ static inline void accept_page(struct page *page) { --- a/mm/mm_init.c~mm-page_alloc-fix-race-condition-in-unaccepted-memory-handling +++ a/mm/mm_init.c @@ -1441,7 +1441,6 @@ static void __meminit zone_init_free_lis #ifdef CONFIG_UNACCEPTED_MEMORY INIT_LIST_HEAD(&zone->unaccepted_pages); - INIT_WORK(&zone->unaccepted_cleanup, unaccepted_cleanup_work); #endif } --- a/mm/page_alloc.c~mm-page_alloc-fix-race-condition-in-unaccepted-memory-handling +++ a/mm/page_alloc.c @@ -7180,16 +7180,8 @@ bool has_managed_dma(void) #ifdef CONFIG_UNACCEPTED_MEMORY -/* Counts number of zones with unaccepted pages. */ -static DEFINE_STATIC_KEY_FALSE(zones_with_unaccepted_pages); - static bool lazy_accept = true; -void unaccepted_cleanup_work(struct work_struct *work) -{ - static_branch_dec(&zones_with_unaccepted_pages); -} - static int __init accept_memory_parse(char *p) { if (!strcmp(p, "lazy")) { @@ -7214,11 +7206,7 @@ static bool page_contains_unaccepted(str static void __accept_page(struct zone *zone, unsigned long *flags, struct page *page) { - bool last; - list_del(&page->lru); - last = list_empty(&zone->unaccepted_pages); - account_freepages(zone, -MAX_ORDER_NR_PAGES, MIGRATE_MOVABLE); __mod_zone_page_state(zone, NR_UNACCEPTED, -MAX_ORDER_NR_PAGES); __ClearPageUnaccepted(page); @@ -7227,28 +7215,6 @@ static void __accept_page(struct zone *z accept_memory(page_to_phys(page), PAGE_SIZE << MAX_PAGE_ORDER); __free_pages_ok(page, MAX_PAGE_ORDER, FPI_TO_TAIL); - - if (last) { - /* - * There are two corner cases: - * - * - If allocation occurs during the CPU bring up, - * static_branch_dec() cannot be used directly as - * it causes a deadlock on cpu_hotplug_lock. - * - * Instead, use schedule_work() to prevent deadlock. - * - * - If allocation occurs before workqueues are initialized, - * static_branch_dec() should be called directly. - * - * Workqueues are initialized before CPU bring up, so this - * will not conflict with the first scenario. - */ - if (system_wq) - schedule_work(&zone->unaccepted_cleanup); - else - unaccepted_cleanup_work(&zone->unaccepted_cleanup); - } } void accept_page(struct page *page) @@ -7285,20 +7251,12 @@ static bool try_to_accept_memory_one(str return true; } -static inline bool has_unaccepted_memory(void) -{ - return static_branch_unlikely(&zones_with_unaccepted_pages); -} - static bool cond_accept_memory(struct zone *zone, unsigned int order, int alloc_flags) { long to_accept, wmark; bool ret = false; - if (!has_unaccepted_memory()) - return false; - if (list_empty(&zone->unaccepted_pages)) return false; @@ -7336,22 +7294,17 @@ static bool __free_unaccepted(struct pag { struct zone *zone = page_zone(page); unsigned long flags; - bool first = false; if (!lazy_accept) return false; spin_lock_irqsave(&zone->lock, flags); - first = list_empty(&zone->unaccepted_pages); list_add_tail(&page->lru, &zone->unaccepted_pages); account_freepages(zone, MAX_ORDER_NR_PAGES, MIGRATE_MOVABLE); __mod_zone_page_state(zone, NR_UNACCEPTED, MAX_ORDER_NR_PAGES); __SetPageUnaccepted(page); spin_unlock_irqrestore(&zone->lock, flags); - if (first) - static_branch_inc(&zones_with_unaccepted_pages); - return true; } _ Patches currently in -mm which might be from kirill.shutemov(a)linux.intel.com are mm-page_alloc-ensure-try_alloc_pages-plays-well-with-unaccepted-memory.patch mm-page_alloc-fix-race-condition-in-unaccepted-memory-handling.patch

6 months

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[PATCH net] net: qede: Initialize qede_ll_ops with designated initializer

by Nathan Chancellor

After a recent change [1] in clang's randstruct implementation to randomize structures that only contain function pointers, there is an error because qede_ll_ops get randomized but does not use a designated initializer for the first member: drivers/net/ethernet/qlogic/qede/qede_main.c:206:2: error: a randomized struct can only be initialized with a designated initializer 206 | { | ^ Explicitly initialize the common member using a designated initializer to fix the build. Cc: stable(a)vger.kernel.org Fixes: 035f7f87b729 ("randstruct: Enable Clang support") Link: https://github.com/llvm/llvm-project/commit/04364fb888eea6db9811510607bed4b… [1] Signed-off-by: Nathan Chancellor <nathan(a)kernel.org> --- drivers/net/ethernet/qlogic/qede/qede_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index 99df00c30b8c..b5d744d2586f 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -203,7 +203,7 @@ static struct pci_driver qede_pci_driver = { }; static struct qed_eth_cb_ops qede_ll_ops = { - { + .common = { #ifdef CONFIG_RFS_ACCEL .arfs_filter_op = qede_arfs_filter_op, #endif --- base-commit: 9540984da649d46f699c47f28c68bbd3c9d99e4c change-id: 20250507-qede-fix-clang-randstruct-011a3119f5d6 Best regards, -- Nathan Chancellor <nathan(a)kernel.org>

6 months

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[PATCH v3 3/3] media: omap3isp: use sgtable-based scatterlist wrappers

by Marek Szyprowski

Use common wrappers operating directly on the struct sg_table objects to fix incorrect use of scatterlists sync calls. dma_sync_sg_for_*() functions have to be called with the number of elements originally passed to dma_map_sg_*() function, not the one returned in sgtable's nents. Fixes: d33186d0be18 ("[media] omap3isp: ccdc: Use the DMA API for LSC") Fixes: 0e24e90f2ca7 ("[media] omap3isp: stat: Use the DMA API") CC: stable(a)vger.kernel.org Signed-off-by: Marek Szyprowski <m.szyprowski(a)samsung.com> --- drivers/media/platform/ti/omap3isp/ispccdc.c | 8 ++++---- drivers/media/platform/ti/omap3isp/ispstat.c | 6 ++---- 2 files changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/media/platform/ti/omap3isp/ispccdc.c b/drivers/media/platform/ti/omap3isp/ispccdc.c index dd375c4e180d..7d0c723dcd11 100644 --- a/drivers/media/platform/ti/omap3isp/ispccdc.c +++ b/drivers/media/platform/ti/omap3isp/ispccdc.c @@ -446,8 +446,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc, if (ret < 0) goto done; - dma_sync_sg_for_cpu(isp->dev, req->table.sgt.sgl, - req->table.sgt.nents, DMA_TO_DEVICE); + dma_sync_sgtable_for_cpu(isp->dev, &req->table.sgt, + DMA_TO_DEVICE); if (copy_from_user(req->table.addr, config->lsc, req->config.size)) { @@ -455,8 +455,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc, goto done; } - dma_sync_sg_for_device(isp->dev, req->table.sgt.sgl, - req->table.sgt.nents, DMA_TO_DEVICE); + dma_sync_sgtable_for_device(isp->dev, &req->table.sgt, + DMA_TO_DEVICE); } spin_lock_irqsave(&ccdc->lsc.req_lock, flags); diff --git a/drivers/media/platform/ti/omap3isp/ispstat.c b/drivers/media/platform/ti/omap3isp/ispstat.c index 359a846205b0..d3da68408ecb 100644 --- a/drivers/media/platform/ti/omap3isp/ispstat.c +++ b/drivers/media/platform/ti/omap3isp/ispstat.c @@ -161,8 +161,7 @@ static void isp_stat_buf_sync_for_device(struct ispstat *stat, if (ISP_STAT_USES_DMAENGINE(stat)) return; - dma_sync_sg_for_device(stat->isp->dev, buf->sgt.sgl, - buf->sgt.nents, DMA_FROM_DEVICE); + dma_sync_sgtable_for_device(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE); } static void isp_stat_buf_sync_for_cpu(struct ispstat *stat, @@ -171,8 +170,7 @@ static void isp_stat_buf_sync_for_cpu(struct ispstat *stat, if (ISP_STAT_USES_DMAENGINE(stat)) return; - dma_sync_sg_for_cpu(stat->isp->dev, buf->sgt.sgl, - buf->sgt.nents, DMA_FROM_DEVICE); + dma_sync_sgtable_for_cpu(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE); } static void isp_stat_buf_clear(struct ispstat *stat) -- 2.34.1

6 months

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Re: Patch "spi: tegra114: Don't fail set_cs_timing when delays are zero" has been added to the 5.15-stable tree

by Jon Hunter

On 07/05/2025 16:45, Sasha Levin wrote: > This is a note to let you know that I've just added the patch titled > > spi: tegra114: Don't fail set_cs_timing when delays are zero > > to the 5.15-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > spi-tegra114-don-t-fail-set_cs_timing-when-delays-ar.patch > and it can be found in the queue-5.15 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. Please drop this from the stable queue because there is another fix pending to fix this fix. Jon -- nvpublic

6 months

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[PATCH 6.14 000/311] 6.14.5-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.14.5 release. There are 311 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 Thu, 01 May 2025 16:10:15 +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/v6.x/stable-review/patch-6.14.5-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.14.5-rc1 Herbert Xu <herbert(a)gondor.apana.org.au> crypto: Kconfig - Select LIB generic option Josh Poimboeuf <jpoimboe(a)kernel.org> objtool: Silence more KCOV warnings, part 2 Josh Poimboeuf <jpoimboe(a)kernel.org> objtool: Ignore end-of-section jumps for KCOV/GCOV Michal Pecio <michal.pecio(a)gmail.com> usb: xhci: Fix Short Packet handling rework ignoring errors Hannes Reinecke <hare(a)kernel.org> nvme: fixup scan failure for non-ANA multipath controllers Ming Lei <ming.lei(a)redhat.com> ublk: don't fail request for recovery & reissue in case of ubq->canceling Miguel Ojeda <ojeda(a)kernel.org> rust: kbuild: skip `--remap-path-prefix` for `rustdoc` Dimitri Fedrau <dimitri.fedrau(a)liebherr.com> net: phy: dp83822: fix transmit amplitude if CONFIG_OF_MDIO not defined Thomas Bogendoerfer <tsbogend(a)alpha.franken.de> MIPS: cm: Fix warning if MIPS_CM is disabled Dan Carpenter <dan.carpenter(a)linaro.org> media: i2c: imx214: Fix uninitialized variable in imx214_set_ctrl() Herbert Xu <herbert(a)gondor.apana.org.au> crypto: lib/Kconfig - Hide arch options from user Ian Abbott <abbotti(a)mev.co.uk> comedi: jr3_pci: Fix synchronous deletion of timer Daniel Borkmann <daniel(a)iogearbox.net> vmxnet3: Fix malformed packet sizing in vmxnet3_process_xdp Dmitry Torokhov <dmitry.torokhov(a)gmail.com> driver core: fix potential NULL pointer dereference in dev_uevent() Dmitry Torokhov <dmitry.torokhov(a)gmail.com> driver core: introduce device_set_driver() helper Dmitry Torokhov <dmitry.torokhov(a)gmail.com> Revert "drivers: core: synchronize really_probe() and dev_uevent()" Tamura Dai <kirinode0(a)gmail.com> spi: spi-imx: Add check for spi_imx_setupxfer() Ming Lei <ming.lei(a)redhat.com> ublk: rely on ->canceling for dealing with ublk_nosrv_dev_should_queue_io Ming Lei <ming.lei(a)redhat.com> ublk: add ublk_force_abort_dev() Lijo Lazar <lijo.lazar(a)amd.com> drm/amdgpu: Use the right function for hdp flush Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Forbid suspending into non-default suspend states Christian König <christian.koenig(a)amd.com> drm/amdgpu: use a dummy owner for sysfs triggered cleaner shaders v4 Meir Elisha <meir.elisha(a)volumez.com> md/raid1: Add check for missing source disk in process_checks() Pi Xiange <xiange.pi(a)intel.com> x86/cpu: Add CPU model number for Bartlett Lake CPUs with Raptor Cove cores Damien Le Moal <dlemoal(a)kernel.org> nvmet: pci-epf: cleanup link state management Mostafa Saleh <smostafa(a)google.com> ubsan: Fix panic from test_ubsan_out_of_bounds Breno Leitao <leitao(a)debian.org> spi: tegra210-quad: add rate limiting and simplify timeout error message Breno Leitao <leitao(a)debian.org> spi: tegra210-quad: use WARN_ON_ONCE instead of WARN_ON for timeouts Namjae Jeon <linkinjeon(a)kernel.org> ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING" Andrew Jones <ajones(a)ventanamicro.com> riscv: Provide all alternative macros all the time Gou Hao <gouhao(a)uniontech.com> iomap: skip unnecessary ifs_block_is_uptodate check Song Liu <song(a)kernel.org> netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS Hans de Goede <hdegoede(a)redhat.com> platform/x86: x86-android-tablets: Add Vexia Edu Atla 10 tablet 5V data Hans de Goede <hdegoede(a)redhat.com> platform/x86: x86-android-tablets: Add "9v" to Vexia EDU ATLA 10 tablet symbols Fernando Fernandez Mancera <ffmancera(a)riseup.net> x86/i8253: Call clockevent_i8253_disable() with interrupts disabled Weidong Wang <wangweidong.a(a)awinic.com> ASoC: codecs: Add of_match_table for aw888081 driver Shengjiu Wang <shengjiu.wang(a)nxp.com> ASoC: fsl_asrc_dma: get codec or cpu dai from backend Igor Pylypiv <ipylypiv(a)google.com> scsi: pm80xx: Set phy_attached to zero when device is gone Peter Griffin <peter.griffin(a)linaro.org> scsi: ufs: exynos: gs101: Put UFS device in reset on .suspend() Peter Griffin <peter.griffin(a)linaro.org> scsi: ufs: exynos: Move phy calls to .exit() callback Peter Griffin <peter.griffin(a)linaro.org> scsi: ufs: exynos: Enable PRDT pre-fetching with UFSHCD_CAP_CRYPTO Peter Griffin <peter.griffin(a)linaro.org> scsi: ufs: exynos: Ensure pre_link() executes before exynos_ufs_phy_init() Xingui Yang <yangxingui(a)huawei.com> scsi: hisi_sas: Fix I/O errors caused by hardware port ID changes Ojaswin Mujoo <ojaswin(a)linux.ibm.com> ext4: make block validity check resistent to sb bh corruption Robin Murphy <robin.murphy(a)arm.com> iommu: Clear iommu-dma ops on cleanup Pali Rohár <pali(a)kernel.org> cifs: Fix querying of WSL CHR and BLK reparse points over SMB1 Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> timekeeping: Add a lockdep override in tick_freeze() Pali Rohár <pali(a)kernel.org> cifs: Fix encoding of SMB1 Session Setup Kerberos Request in non-UNICODE mode Daniel Wagner <wagi(a)kernel.org> nvmet-fc: put ref when assoc->del_work is already scheduled Daniel Wagner <wagi(a)kernel.org> nvmet-fc: take tgtport reference only once Josh Poimboeuf <jpoimboe(a)kernel.org> x86/bugs: Don't fill RSB on context switch with eIBRS Josh Poimboeuf <jpoimboe(a)kernel.org> x86/bugs: Don't fill RSB on VMEXIT with eIBRS+retpoline Josh Poimboeuf <jpoimboe(a)kernel.org> x86/bugs: Use SBPB in write_ibpb() if applicable Qiuxu Zhuo <qiuxu.zhuo(a)intel.com> selftests/mincore: Allow read-ahead pages to reach the end of the file Roger Pau Monne <roger.pau(a)citrix.com> x86/xen: disable CPU idle and frequency drivers for PVH dom0 Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> gpiolib: of: Move Atmel HSMCI quirk up out of the regulator comment Josh Poimboeuf <jpoimboe(a)kernel.org> objtool: Stop UNRET validation on UD2 Uday Shankar <ushankar(a)purestorage.com> nvme: multipath: fix return value of nvme_available_path Hannes Reinecke <hare(a)kernel.org> nvme: re-read ANA log page after ns scan completes Julia Filipchuk <julia.filipchuk(a)intel.com> drm/xe/xe3lpg: Apply Wa_14022293748, Wa_22019794406 Jay Cornwall <jay.cornwall(a)amd.com> drm/amdgpu: Increase KIQ invalidate_tlbs timeout Emily Deng <Emily.Deng(a)amd.com> drm/amdkfd: sriov doesn't support per queue reset Jean-Marc Eurin <jmeurin(a)google.com> ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls Mario Limonciello <mario.limonciello(a)amd.com> ACPI: EC: Set ec_no_wakeup for Lenovo Go S Hannes Reinecke <hare(a)kernel.org> nvme: requeue namespace scan on missed AENs Uwe Kleine-König <u.kleine-koenig(a)baylibre.com> pwm: axi-pwmgen: Let .round_waveform_tohw() signal when request was rounded up Uwe Kleine-König <u.kleine-koenig(a)baylibre.com> pwm: Let pwm_set_waveform() succeed even if lowlevel driver rounded up Jason Andryuk <jason.andryuk(a)amd.com> xen: Change xen-acpi-processor dom0 dependency Gabriel Shahrouzi <gshahrouzi(a)gmail.com> perf/core: Fix WARN_ON(!ctx) in __free_event() for partial init Ming Lei <ming.lei(a)redhat.com> selftests: ublk: fix test_stripe_04 Waiman Long <longman(a)redhat.com> cgroup/cpuset: Don't allow creation of local partition over a remote one Xiaogang Chen <xiaogang.chen(a)amd.com> udmabuf: fix a buf size overflow issue during udmabuf creation Thomas Weißschuh <thomas.weissschuh(a)linutronix.de> KVM: s390: Don't use %pK through debug printing Thomas Weißschuh <thomas.weissschuh(a)linutronix.de> KVM: s390: Don't use %pK through tracepoints Oleg Nesterov <oleg(a)redhat.com> sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP Xi Ruoyao <xry111(a)xry111.site> kbuild: add dependency from vmlinux to sorttable Thomas Weißschuh <linux(a)weissschuh.net> kbuild, rust: use -fremap-path-prefix to make paths relative Pavel Begunkov <asml.silence(a)gmail.com> io_uring: always do atomic put from iowq Steven Rostedt <rostedt(a)goodmis.org> tracing: Enforce the persistent ring buffer to be page aligned Lukas Stockmann <lukas.stockmann(a)siemens.com> rtc: pcf85063: do a SW reset if POR failed Ignacio Encinas <ignacio(a)iencinas.com> 9p/trans_fd: mark concurrent read and writes to p9_conn->err Dominique Martinet <asmadeus(a)codewreck.org> 9p/net: fix improper handling of bogus negative read/write replies Basavaraj Natikar <Basavaraj.Natikar(a)amd.com> ntb_hw_amd: Add NTB PCI ID for new gen CPU Arnd Bergmann <arnd(a)arndb.de> ntb: reduce stack usage in idt_scan_mws Charlie Jenkins <charlie(a)rivosinc.com> riscv: tracing: Fix __write_overflow_field in ftrace_partial_regs() Al Viro <viro(a)zeniv.linux.org.uk> qibfs: fix _another_ leak Josh Poimboeuf <jpoimboe(a)kernel.org> objtool, lkdtm: Obfuscate the do_nothing() pointer Josh Poimboeuf <jpoimboe(a)kernel.org> objtool, regulator: rk808: Remove potential undefined behavior in rk806_set_mode_dcdc() Josh Poimboeuf <jpoimboe(a)kernel.org> objtool, ASoC: codecs: wcd934x: Remove potential undefined behavior in wcd934x_slim_irq_handler() Josh Poimboeuf <jpoimboe(a)kernel.org> objtool, panic: Disable SMAP in __stack_chk_fail() Josh Poimboeuf <jpoimboe(a)kernel.org> objtool: Silence more KCOV warnings Nicolin Chen <nicolinc(a)nvidia.com> iommu/arm-smmu-v3: Set MEV bit in nested STE for DoS mitigations Benjamin Berg <benjamin.berg(a)intel.com> um: work around sched_yield not yielding in time-travel mode Mika Westerberg <mika.westerberg(a)linux.intel.com> thunderbolt: Scan retimers after device router has been enumerated Théo Lebrun <theo.lebrun(a)bootlin.com> usb: host: xhci-plat: mvebu: use ->quirks instead of ->init_quirk() func Chenyuan Yang <chenyuan0y(a)gmail.com> usb: gadget: aspeed: Add NULL pointer check in ast_vhub_init_dev() Andy Yan <andy.yan(a)rock-chips.com> phy: rockchip: usbdp: Avoid call hpd_event_trigger in dp_phy_init Michal Pecio <michal.pecio(a)gmail.com> usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running Vinicius Costa Gomes <vinicius.gomes(a)intel.com> dmaengine: dmatest: Fix dmatest waiting less when interrupted Stanley Chu <yschu(a)nuvoton.com> i3c: master: svc: Add support for Nuvoton npcm845 i3c Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: Handle spurious events on Etron host isoc enpoints Michal Pecio <michal.pecio(a)gmail.com> usb: xhci: Fix isochronous Ring Underrun/Overrun event handling Michal Pecio <michal.pecio(a)gmail.com> usb: xhci: Complete 'error mid TD' transfers when handling Missed Service Stefan Wahren <wahrenst(a)gmx.net> dmaengine: bcm2835-dma: fix warning when CONFIG_PM=n John Stultz <jstultz(a)google.com> sound/virtio: Fix cancel_sync warnings on uninitialized work_structs Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> usb: dwc3: gadget: Avoid using reserved endpoints on Intel Merrifield Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> usb: dwc3: gadget: Refactor loop to avoid NULL endpoints Edward Adam Davis <eadavis(a)qq.com> fs/ntfs3: Fix WARNING in ntfs_extend_initialized_size Lizhi Xu <lizhi.xu(a)windriver.com> fs/ntfs3: Keep write operations atomic Trevor Gamblin <tgamblin(a)baylibre.com> iio: adc: ad4695: make ad4695_exit_conversion_mode() more robust Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> usb: typec: ucsi: ccg: move command quirks to ucsi_ccg_sync_control() Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> usb: typec: ucsi: return CCI and message from sync_control callback Alexander Stein <alexander.stein(a)mailbox.org> usb: host: max3421-hcd: Add missing spi_device_id table Dave Penkler <dpenkler(a)gmail.com> staging: gpib: Use min for calculating transfer length Sudeep Holla <sudeep.holla(a)arm.com> mailbox: pcc: Always clear the platform ack interrupt first Huisong Li <lihuisong(a)huawei.com> mailbox: pcc: Fix the possible race in updation of chan_in_use flag Yafang Shao <laoar.shao(a)gmail.com> bpf: Reject attaching fexit/fmod_ret to __noreturn functions Martin KaFai Lau <martin.lau(a)kernel.org> bpf: Only fails the busy counter check in bpf_cgrp_storage_get if it creates storage Sewon Nam <swnam0729(a)gmail.com> bpf: bpftool: Setting error code in do_loader() Feng Yang <yangfeng(a)kylinos.cn> selftests/bpf: Fix cap_enable_effective() return code Biju Das <biju.das.jz(a)bp.renesas.com> clk: renesas: rzv2h: Adjust for CPG_BUS_m_MSTOP starting from m = 1 Haoxiang Li <haoxiang_li2024(a)163.com> s390/tty: Fix a potential memory leak bug Haoxiang Li <haoxiang_li2024(a)163.com> s390/sclp: Add check for get_zeroed_page() Yu-Chun Lin <eleanor15x(a)gmail.com> parisc: PDT: Fix missing prototype warning Heiko Stuebner <heiko(a)sntech.de> clk: check for disabled clock-provider in of_clk_get_hw_from_clkspec() Alexei Starovoitov <ast(a)kernel.org> bpf: Fix deadlock between rcu_tasks_trace and event_mutex. Yonghong Song <yonghong.song(a)linux.dev> bpf: Fix kmemleak warning for percpu hashmap Herbert Xu <herbert(a)gondor.apana.org.au> crypto: null - Use spin lock instead of mutex Herbert Xu <herbert(a)gondor.apana.org.au> crypto: lib/Kconfig - Fix lib built-in failure when arch is modular Devaraj Rangasamy <Devaraj.Rangasamy(a)amd.com> crypto: ccp - Add support for PCI device 0x1134 Gregory CLEMENT <gregory.clement(a)bootlin.com> MIPS: cm: Detect CM quirks from device tree Dmitry Mastykin <mastichi(a)gmail.com> pinctrl: mcp23s08: Get rid of spurious level interrupts Chenyuan Yang <chenyuan0y(a)gmail.com> pinctrl: renesas: rza2: Fix potential NULL pointer dereference Amery Hung <ameryhung(a)gmail.com> selftests/bpf: Fix stdout race condition in traffic monitor Lukas Wunner <lukas(a)wunner.de> crypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP() Oliver Neukum <oneukum(a)suse.com> USB: wdm: add annotation Oliver Neukum <oneukum(a)suse.com> USB: wdm: wdm_wwan_port_tx_complete mutex in atomic context Oliver Neukum <oneukum(a)suse.com> USB: wdm: close race between wdm_open and wdm_wwan_port_stop Oliver Neukum <oneukum(a)suse.com> USB: wdm: handle IO errors in wdm_wwan_port_start Dan Carpenter <dan.carpenter(a)linaro.org> usb: typec: class: Unlocked on error in typec_register_partner() Andrei Kuchynski <akuchynski(a)chromium.org> usb: typec: class: Invalidate USB device pointers on partner unregistration Andrei Kuchynski <akuchynski(a)chromium.org> usb: typec: class: Fix NULL pointer access Oliver Neukum <oneukum(a)suse.com> USB: VLI disk crashes if LPM is used Miao Li <limiao(a)kylinos.cn> usb: quirks: Add delay init quirk for SanDisk 3.2Gen1 Flash Drive Miao Li <limiao(a)kylinos.cn> usb: quirks: add DELAY_INIT quirk for Silicon Motion Flash Drive Mike Looijmans <mike.looijmans(a)topic.nl> usb: dwc3: xilinx: Prevent spike in reset signal Frode Isaksen <frode(a)meta.com> usb: dwc3: gadget: check that event count does not exceed event buffer length Huacai Chen <chenhuacai(a)kernel.org> USB: OHCI: Add quirk for LS7A OHCI controller (rev 0x02) Fedor Pchelkin <pchelkin(a)ispras.ru> usb: chipidea: ci_hdrc_imx: implement usb_phy_init() error handling Fedor Pchelkin <pchelkin(a)ispras.ru> usb: chipidea: ci_hdrc_imx: fix call balance of regulator routines Fedor Pchelkin <pchelkin(a)ispras.ru> usb: chipidea: ci_hdrc_imx: fix usbmisc handling Ralph Siemsen <ralph.siemsen(a)linaro.org> usb: cdns3: Fix deadlock when using NCM gadget Michal Pecio <michal.pecio(a)gmail.com> usb: xhci: Fix invalid pointer dereference in Etron workaround Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: Limit time spent with xHC interrupts disabled during bus resume Craig Hesling <craig(a)hesling.com> USB: serial: simple: add OWON HDS200 series oscilloscope support Adam Xue <zxue(a)semtech.com> USB: serial: option: add Sierra Wireless EM9291 Michael Ehrenreich <michideep(a)gmail.com> USB: serial: ftdi_sio: add support for Abacus Electrics Optical Probe Ryo Takakura <ryotkkr98(a)gmail.com> serial: sifive: lock port in startup()/shutdown() callbacks Stephan Gerhold <stephan.gerhold(a)linaro.org> serial: msm: Configure correct working mode before starting earlycon Günther Noack <gnoack3000(a)gmail.com> tty: Require CAP_SYS_ADMIN for all usages of TIOCL_SELMOUSEREPORT Mahesh Rao <mahesh.rao(a)intel.com> firmware: stratix10-svc: Add of_platform_default_populate() Rengarajan S <rengarajan.s(a)microchip.com> misc: microchip: pci1xxxx: Fix incorrect IRQ status handling during ack Rengarajan S <rengarajan.s(a)microchip.com> misc: microchip: pci1xxxx: Fix Kernel panic during IRQ handler registration Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> char: misc: register chrdev region with all possible minors Sean Christopherson <seanjc(a)google.com> KVM: x86: Take irqfds.lock when adding/deleting IRQ bypass producer Sean Christopherson <seanjc(a)google.com> KVM: x86: Reset IRTE to host control if *new* route isn't postable Sean Christopherson <seanjc(a)google.com> KVM: x86: Explicitly treat routing entry type changes as changes Hans de Goede <hdegoede(a)redhat.com> mei: vsc: Fix fortify-panic caused by invalid counted_by() use Alexander Usyskin <alexander.usyskin(a)intel.com> mei: me: add panther lake H DID Damien Le Moal <dlemoal(a)kernel.org> scsi: Improve CDL control Oliver Neukum <oneukum(a)suse.com> USB: storage: quirk for ADATA Portable HDD CH94 Damien Le Moal <dlemoal(a)kernel.org> ata: libata-scsi: Fix ata_msense_control_ata_feature() Damien Le Moal <dlemoal(a)kernel.org> ata: libata-scsi: Fix ata_mselect_control_ata_feature() return type Damien Le Moal <dlemoal(a)kernel.org> ata: libata-scsi: Improve CDL control Haoxiang Li <haoxiang_li2024(a)163.com> mcb: fix a double free bug in chameleon_parse_gdd() Smita Koralahalli <Smita.KoralahalliChannabasappa(a)amd.com> cxl/core/regs.c: Skip Memory Space Enable check for RCD and RCH Ports Sean Christopherson <seanjc(a)google.com> KVM: SVM: Allocate IR data using atomic allocation Jens Axboe <axboe(a)kernel.dk> io_uring: fix 'sync' handling of io_fallback_tw() Bibo Mao <maobibo(a)loongson.cn> LoongArch: KVM: Fix PMU pass-through issue if VM exits to host finally Bibo Mao <maobibo(a)loongson.cn> LoongArch: KVM: Fully clear some CSRs when VM reboot Yulong Han <wheatfox17(a)icloud.com> LoongArch: KVM: Fix multiple typos of KVM code Petr Tesarik <ptesarik(a)suse.com> LoongArch: Remove a bogus reference to ZONE_DMA Ming Wang <wangming01(a)loongson.cn> LoongArch: Return NULL from huge_pte_offset() for invalid PMD Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: Handle fp, lsx, lasx and lbt assembly symbols Carlos Llamas <cmllamas(a)google.com> binder: fix offset calculation in debug log Suzuki K Poulose <suzuki.poulose(a)arm.com> irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() Ilpo Järvinen <ilpo.jarvinen(a)linux.intel.com> selftests/pcie_bwctrl: Fix test progs list Juergen Gross <jgross(a)suse.com> x86/mm: Fix _pgd_alloc() for Xen PV mode Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> x86/insn: Fix CTEST instruction decoding Mario Limonciello <mario.limonciello(a)amd.com> drm/amd/display: Fix ACPI edid parsing on some Lenovo systems Roman Li <Roman.Li(a)amd.com> drm/amd/display: Force full update in gpu reset Roman Li <Roman.Li(a)amd.com> drm/amd/display: Fix gpu reset in multidisplay config Hugo Villeneuve <hvilleneuve(a)dimonoff.com> drm: panel: jd9365da: fix reset signal polarity in unprepare Christian Schrefl <chrisi.schrefl(a)gmail.com> rust: firmware: Use `ffi::c_char` type in `FwFunc` Ranjan Kumar <ranjan.kumar(a)broadcom.com> scsi: mpi3mr: Fix pending I/O counter Mat Martineau <martineau(a)kernel.org> mptcp: pm: Defer freeing of MPTCP userspace path manager entries Fiona Klute <fiona.klute(a)gmx.de> net: phy: microchip: force IRQ polling mode for lan88xx Oleksij Rempel <o.rempel(a)pengutronix.de> net: selftests: initialize TCP header and skb payload with zero Alexey Nepomnyashih <sdl(a)nppct.ru> xen-netfront: handle NULL returned by xdp_convert_buff_to_frame() Marek Behún <kabel(a)kernel.org> crypto: atmel-sha204a - Set hwrng quality to lowest possible Breno Leitao <leitao(a)debian.org> sched_ext: Use kvzalloc for large exit_dump allocation Halil Pasic <pasic(a)linux.ibm.com> virtio_console: fix missing byte order handling for cols and rows Florian Westphal <fw(a)strlen.de> netfilter: fib: avoid lookup if socket is available Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: stmmac: block PHY RXC clock-stop Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: phylink: add functions to block/unblock rx clock stop Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: stmmac: socfpga: remove phy_resume() call Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: stmmac: address non-LPI resume failures properly Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: phylink: add phylink_prepare_resume() Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: stmmac: simplify phylink_suspend() and phylink_resume() calls Omar Sandoval <osandov(a)fb.com> sched/eevdf: Fix se->slice being set to U64_MAX and resulting crash Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: Make do_xyz() exception handlers more robust Tiezhu Yang <yangtiezhu(a)loongson.cn> LoongArch: Make regs_irqs_disabled() more clear Yuli Wang <wangyuli(a)uniontech.com> LoongArch: Select ARCH_USE_MEMTEST Luo Gengkun <luogengkun(a)huaweicloud.com> perf/x86: Fix non-sampling (counting) events on certain x86 platforms Martin Blumenstingl <martin.blumenstingl(a)googlemail.com> drm/meson: use unsigned long long / Hz for frequency types Christian Hewitt <christianshewitt(a)gmail.com> Revert "drm/meson: vclk: fix calculation of 59.94 fractional rates" Alexei Starovoitov <ast(a)kernel.org> bpf: Add namespace to BPF internal symbols Jan Kara <jack(a)suse.cz> fs/xattr: Fix handling of AT_FDCWD in setxattrat(2) and getxattrat(2) T.J. Mercier <tjmercier(a)google.com> splice: remove duplicate noinline from pipe_clear_nowait Ming Lei <ming.lei(a)redhat.com> ublk: call ublk_dispatch_req() for handling UBLK_U_IO_NEED_GET_DATA Caleb Sander Mateos <csander(a)purestorage.com> ublk: remove unused cmd argument to ublk_dispatch_req() Ming Lei <ming.lei(a)redhat.com> ublk: implement ->queue_rqs() Ming Lei <ming.lei(a)redhat.com> ublk: comment on ubq->canceling handling in ublk_queue_rq() Uday Shankar <ushankar(a)purestorage.com> ublk: remove io_cmds list in ublk_queue Björn Töpel <bjorn(a)rivosinc.com> riscv: uprobes: Add missing fence.i after building the XOL buffer Björn Töpel <bjorn(a)rivosinc.com> riscv: Replace function-like macro by static inline function Sean Christopherson <seanjc(a)google.com> iommu/amd: Return an error if vCPU affinity is set for non-vCPU IRTE Christoph Hellwig <hch(a)lst.de> block: don't autoload drivers on stat Christoph Hellwig <hch(a)lst.de> block: remove the backing_inode variable in bdev_statx Christoph Hellwig <hch(a)lst.de> block: move blkdev_{get,put} _no_open prototypes out of blkdev.h Luis Chamberlain <mcgrof(a)kernel.org> bdev: use bdev_io_min() for statx block size Christoph Hellwig <hch(a)lst.de> block: never reduce ra_pages in blk_apply_bdi_limits Alexis Lothoré <alexis.lothore(a)bootlin.com> net: stmmac: fix multiplication overflow when reading timestamp Alexis Lothore <alexis.lothore(a)bootlin.com> net: stmmac: fix dwmac1000 ptp timestamp status offset Johannes Schneider <johannes.schneider(a)leica-geosystems.com> net: dp83822: Fix OF_MDIO config check Dimitri Fedrau <dimitri.fedrau(a)liebherr.com> net: phy: dp83822: Add support for changing the transmit amplitude voltage Dimitri Fedrau <dimitri.fedrau(a)liebherr.com> net: phy: Add helper for getting tx amplitude gain Shannon Nelson <shannon.nelson(a)amd.com> pds_core: make wait_context part of q_info Brett Creeley <brett.creeley(a)amd.com> pds_core: Remove unnecessary check in pds_client_adminq_cmd() Brett Creeley <brett.creeley(a)amd.com> pds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result Brett Creeley <brett.creeley(a)amd.com> pds_core: Prevent possible adminq overflow/stuck condition Daniel Golle <daniel(a)makrotopia.org> net: dsa: mt7530: sync driver-specific behavior of MT7531 variants Cong Wang <xiyou.wangcong(a)gmail.com> net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Cong Wang <xiyou.wangcong(a)gmail.com> net_sched: hfsc: Fix a UAF vulnerability in class handling Al Viro <viro(a)zeniv.linux.org.uk> fix a couple of races in MNT_TREE_BENEATH handling by do_move_mount() Bo-Cun Chen <bc-bocun.chen(a)mediatek.com> net: ethernet: mtk_eth_soc: net: revise NETSYSv3 hardware configuration Tung Nguyen <tung.quang.nguyen(a)est.tech> tipc: fix NULL pointer dereference in tipc_mon_reinit_self() Bui Quang Minh <minhquangbui99(a)gmail.com> virtio-net: disable delayed refill when pausing rx Joe Damato <jdamato(a)fastly.com> virtio-net: Refactor napi_disable paths Joe Damato <jdamato(a)fastly.com> virtio-net: Refactor napi_enable paths Qingfang Deng <qingfang.deng(a)siflower.com.cn> net: phy: leds: fix memory leak Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: phylink: fix suspend/resume with WoL enabled and link down Russell King (Oracle) <rmk+kernel(a)armlinux.org.uk> net: phylink: force link down on major_config failure Justin Iurman <justin.iurman(a)uliege.be> net: lwtunnel: disable BHs when required Richard Weinberger <richard(a)nod.at> nvmet: fix out-of-bounds access in nvmet_enable_port Vladimir Oltean <vladimir.oltean(a)nxp.com> net: enetc: fix frame corruption on bpf_xdp_adjust_head/tail() and XDP_PASS Vladimir Oltean <vladimir.oltean(a)nxp.com> net: enetc: refactor bulk flipping of RX buffers to separate function Vladimir Oltean <vladimir.oltean(a)nxp.com> net: enetc: register XDP RX queues with frag_size Chenyuan Yang <chenyuan0y(a)gmail.com> scsi: ufs: core: Add NULL check in ufshcd_mcq_compl_pending_transfer() Anastasia Kovaleva <a.kovaleva(a)yadro.com> scsi: core: Clear flags for scsi_cmnd that did not complete Henry Martin <bsdhenrymartin(a)gmail.com> net/mlx5: Move ttc allocation after switch case to prevent leaks Henry Martin <bsdhenrymartin(a)gmail.com> net/mlx5: Fix null-ptr-deref in mlx5_create_{inner_,}ttc_table() Dongli Zhang <dongli.zhang(a)oracle.com> vhost-scsi: Fix vhost_scsi_send_status() Dongli Zhang <dongli.zhang(a)oracle.com> vhost-scsi: Fix vhost_scsi_send_bad_target() Mike Christie <michael.christie(a)oracle.com> vhost-scsi: Add better resource allocation failure handling T.J. Mercier <tjmercier(a)google.com> cgroup/cpuset-v1: Add missing support for cpuset_v2_mode Johannes Thumshirn <johannes.thumshirn(a)wdc.com> btrfs: zoned: return EIO on RAID1 block group write pointer mismatch Qu Wenruo <wqu(a)suse.com> btrfs: avoid page_lockend underflow in btrfs_punch_hole_lock_range() Johan Hovold <johan+linaro(a)kernel.org> cpufreq: fix compile-test defaults Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> cpufreq: Do not enable by default during compile testing Marc Zyngier <maz(a)kernel.org> cpufreq: cppc: Fix invalid return value in .get() callback Daniel Jurgens <danielj(a)nvidia.com> virtio_pci: Use self group type for cap commands Chenyuan Yang <chenyuan0y(a)gmail.com> scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort() Henry Martin <bsdhenrymartin(a)gmail.com> cpufreq: scpi: Fix null-ptr-deref in scpi_cpufreq_get_rate() Henry Martin <bsdhenrymartin(a)gmail.com> cpufreq: scmi: Fix null-ptr-deref in scmi_cpufreq_get_rate() Henry Martin <bsdhenrymartin(a)gmail.com> cpufreq: apple-soc: Fix null-ptr-deref in apple_soc_cpufreq_get_rate() Arnd Bergmann <arnd(a)arndb.de> dma/contiguous: avoid warning about unused size_bytes Andre Przywara <andre.przywara(a)arm.com> cpufreq: sun50i: prevent out-of-bounds access David Howells <dhowells(a)redhat.com> ceph: Fix incorrect flush end position calculation Nathan Chancellor <nathan(a)kernel.org> lib/Kconfig.ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP Niranjana Vishwanathapura <niranjana.vishwanathapura(a)intel.com> drm/xe: Ensure fixed_slice_mode gets set after ccs_mode change Lucas De Marchi <lucas.demarchi(a)intel.com> drm/xe/rtp: Drop sentinels from arg to xe_rtp_process_to_sr() Tvrtko Ursulin <tvrtko.ursulin(a)igalia.com> drm/xe: Add performance tunings to debugfs Tejas Upadhyay <tejas.upadhyay(a)intel.com> drm/xe/xe3lpg: Add Wa_13012615864 Nirmoy Das <nirmoy.das(a)intel.com> drm/xe/ptl: Apply Wa_14023061436 Jonathan Currier <dullfire(a)yahoo.com> net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads Biju Das <biju.das.jz(a)bp.renesas.com> irqchip/renesas-rzv2h: Prevent TINT spurious interrupt Biju Das <biju.das.jz(a)bp.renesas.com> irqchip/renesas-rzv2h: Add struct rzv2h_hw_info with t_offs variable Biju Das <biju.das.jz(a)bp.renesas.com> irqchip/renesas-rzv2h: Simplify rzv2h_icu_init() Jonathan Currier <dullfire(a)yahoo.com> PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads Thomas Gleixner <tglx(a)linutronix.de> PCI/MSI: Handle the NOMASK flag correctly for all PCI/MSI backends Roger Pau Monne <roger.pau(a)citrix.com> PCI/MSI: Convert pci_msi_ignore_mask to per MSI domain flag Niklas Schnelle <schnelle(a)linux.ibm.com> s390/pci: Support mmap() of PCI resources except for ISM devices Tudor Ambarus <tudor.ambarus(a)linaro.org> scsi: ufs: qcom: fix dev reference leaked through of_qcom_ice_get Zijun Hu <quic_zijuhu(a)quicinc.com> of: resolver: Fix device node refcount leakage in of_resolve_phandles() Rob Herring (Arm) <robh(a)kernel.org> of: resolver: Simplify of_resolve_phandles() using __free() Sergiu Cuciurean <sergiu.cuciurean(a)analog.com> iio: adc: ad7768-1: Fix conversion result sign Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7768-1: Move setting of val a bit later to avoid unnecessary return value check Hans de Goede <hdegoede(a)redhat.com> media: ov08x40: Add missing ov08x40_identify_module() call on stream-start Hans de Goede <hdegoede(a)redhat.com> media: ov08x40: Move ov08x40_identify_module() function up André Apitzsch <git(a)apitzsch.eu> media: i2c: imx214: Fix link frequency validation André Apitzsch <git(a)apitzsch.eu> media: i2c: imx214: Check number of lanes from device tree André Apitzsch <git(a)apitzsch.eu> media: i2c: imx214: Replace register addresses with macros André Apitzsch <git(a)apitzsch.eu> media: i2c: imx214: Convert to CCI register access helpers André Apitzsch <git(a)apitzsch.eu> media: i2c: imx214: Simplify with dev_err_probe() André Apitzsch <git(a)apitzsch.eu> media: i2c: imx214: Use subdev active state Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> PM: EM: Address RCU-related sparse warnings Li RongQing <lirongqing(a)baidu.com> PM: EM: use kfree_rcu() to simplify the code Tudor Ambarus <tudor.ambarus(a)linaro.org> mmc: sdhci-msm: fix dev reference leaked through of_qcom_ice_get Tudor Ambarus <tudor.ambarus(a)linaro.org> soc: qcom: ice: introduce devm_of_qcom_ice_get Jinjiang Tu <tujinjiang(a)huawei.com> mm/vmscan: don't try to reclaim hwpoison folio ------------- Diffstat: Documentation/admin-guide/kernel-parameters.txt | 2 + Documentation/bpf/bpf_devel_QA.rst | 8 + Documentation/trace/debugging.rst | 2 + Makefile | 5 +- arch/arm/crypto/Kconfig | 10 +- arch/arm64/crypto/Kconfig | 6 +- arch/loongarch/Kconfig | 1 + arch/loongarch/include/asm/fpu.h | 33 +- arch/loongarch/include/asm/lbt.h | 10 +- arch/loongarch/include/asm/ptrace.h | 4 +- arch/loongarch/kernel/fpu.S | 6 + arch/loongarch/kernel/lbt.S | 4 + arch/loongarch/kernel/signal.c | 21 - arch/loongarch/kernel/traps.c | 20 +- arch/loongarch/kvm/intc/ipi.c | 4 +- arch/loongarch/kvm/main.c | 4 +- arch/loongarch/kvm/vcpu.c | 8 + arch/loongarch/mm/hugetlbpage.c | 2 +- arch/loongarch/mm/init.c | 3 - arch/mips/crypto/Kconfig | 7 +- arch/mips/include/asm/mips-cm.h | 22 + arch/mips/kernel/mips-cm.c | 14 + arch/parisc/kernel/pdt.c | 2 + arch/powerpc/crypto/Kconfig | 7 +- arch/riscv/crypto/Kconfig | 1 - arch/riscv/include/asm/alternative-macros.h | 21 +- arch/riscv/include/asm/cacheflush.h | 15 +- arch/riscv/include/asm/ftrace.h | 2 +- arch/riscv/include/asm/ptrace.h | 18 +- arch/riscv/kernel/probes/uprobes.c | 10 +- arch/s390/Kconfig | 4 +- arch/s390/crypto/Kconfig | 3 +- arch/s390/include/asm/pci.h | 3 + arch/s390/kvm/intercept.c | 2 +- arch/s390/kvm/interrupt.c | 8 +- arch/s390/kvm/kvm-s390.c | 10 +- arch/s390/kvm/trace-s390.h | 4 +- arch/s390/pci/Makefile | 2 +- arch/s390/pci/pci_fixup.c | 23 + arch/um/include/linux/time-internal.h | 2 + arch/um/kernel/skas/syscall.c | 11 + arch/x86/crypto/Kconfig | 11 +- arch/x86/entry/entry.S | 2 +- arch/x86/events/core.c | 2 +- arch/x86/include/asm/intel-family.h | 2 + arch/x86/include/asm/pgalloc.h | 19 +- arch/x86/kernel/cpu/bugs.c | 36 +- arch/x86/kernel/i8253.c | 3 +- arch/x86/kernel/machine_kexec_32.c | 4 +- arch/x86/kvm/svm/avic.c | 60 +- arch/x86/kvm/vmx/posted_intr.c | 28 +- arch/x86/kvm/x86.c | 20 +- arch/x86/lib/x86-opcode-map.txt | 4 +- arch/x86/mm/pgtable.c | 4 +- arch/x86/mm/tlb.c | 6 +- arch/x86/pci/xen.c | 8 +- arch/x86/platform/efi/efi_64.c | 4 +- arch/x86/xen/enlighten_pvh.c | 19 +- block/bdev.c | 22 +- block/blk-cgroup.c | 2 +- block/blk-settings.c | 8 +- block/blk.h | 3 + block/fops.c | 2 +- crypto/Kconfig | 3 + crypto/crypto_null.c | 37 +- crypto/ecc.c | 2 +- crypto/ecdsa-p1363.c | 2 +- crypto/ecdsa-x962.c | 4 +- drivers/acpi/ec.c | 28 + drivers/acpi/pptt.c | 4 +- drivers/android/binder.c | 2 +- drivers/ata/libata-scsi.c | 25 +- drivers/base/base.h | 17 + drivers/base/bus.c | 2 +- drivers/base/core.c | 38 +- drivers/base/dd.c | 7 +- drivers/block/ublk_drv.c | 214 +++-- drivers/char/misc.c | 2 +- drivers/char/virtio_console.c | 7 +- drivers/clk/clk.c | 4 + drivers/clk/renesas/rzv2h-cpg.c | 12 +- drivers/comedi/drivers/jr3_pci.c | 2 +- drivers/cpufreq/Kconfig.arm | 20 +- drivers/cpufreq/apple-soc-cpufreq.c | 10 +- drivers/cpufreq/cppc_cpufreq.c | 2 +- drivers/cpufreq/scmi-cpufreq.c | 10 +- drivers/cpufreq/scpi-cpufreq.c | 13 +- drivers/cpufreq/sun50i-cpufreq-nvmem.c | 18 +- drivers/crypto/atmel-sha204a.c | 6 + drivers/crypto/ccp/sp-pci.c | 1 + drivers/cxl/core/regs.c | 4 - drivers/dma-buf/udmabuf.c | 2 +- drivers/dma/bcm2835-dma.c | 2 +- drivers/dma/dmatest.c | 6 +- drivers/firmware/stratix10-svc.c | 14 +- drivers/gpio/gpiolib-of.c | 6 +- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 14 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 14 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 19 +- drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 8 +- drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 12 +- drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 6 +- drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 4 +- drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 4 +- drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c | 4 +- drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/psp_v11_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | 2 +- drivers/gpu/drm/amd/amdgpu/psp_v14_0.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 3 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +- .../drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +- drivers/gpu/drm/meson/meson_drv.c | 2 +- drivers/gpu/drm/meson/meson_drv.h | 2 +- drivers/gpu/drm/meson/meson_encoder_hdmi.c | 29 +- drivers/gpu/drm/meson/meson_vclk.c | 195 ++--- drivers/gpu/drm/meson/meson_vclk.h | 13 +- drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c | 4 +- drivers/gpu/drm/xe/regs/xe_gt_regs.h | 4 + drivers/gpu/drm/xe/tests/xe_rtp_test.c | 2 +- drivers/gpu/drm/xe/xe_gt.c | 4 + drivers/gpu/drm/xe/xe_gt_debugfs.c | 11 + drivers/gpu/drm/xe/xe_gt_types.h | 10 + drivers/gpu/drm/xe/xe_hw_engine.c | 18 +- drivers/gpu/drm/xe/xe_reg_whitelist.c | 4 +- drivers/gpu/drm/xe/xe_rtp.c | 6 +- drivers/gpu/drm/xe/xe_rtp.h | 2 +- drivers/gpu/drm/xe/xe_tuning.c | 71 +- drivers/gpu/drm/xe/xe_tuning.h | 3 + drivers/gpu/drm/xe/xe_wa.c | 22 +- drivers/gpu/drm/xe/xe_wa_oob.rules | 2 + drivers/i3c/master/svc-i3c-master.c | 17 +- drivers/iio/adc/ad4695.c | 34 +- drivers/iio/adc/ad7768-1.c | 5 +- drivers/infiniband/hw/qib/qib_fs.c | 1 + drivers/iommu/amd/iommu.c | 2 +- .../iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 2 + drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 +- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 1 + drivers/iommu/iommu.c | 3 + drivers/irqchip/irq-gic-v2m.c | 2 +- drivers/irqchip/irq-renesas-rzv2h.c | 91 +- drivers/mailbox/pcc.c | 15 +- drivers/mcb/mcb-parse.c | 2 +- drivers/md/raid1.c | 26 +- drivers/media/i2c/Kconfig | 1 + drivers/media/i2c/imx214.c | 934 ++++++++++----------- drivers/media/i2c/ov08x40.c | 78 +- drivers/misc/lkdtm/perms.c | 14 +- drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c | 8 +- drivers/misc/mei/hw-me-regs.h | 1 + drivers/misc/mei/pci-me.c | 1 + drivers/misc/mei/vsc-tp.c | 26 +- drivers/mmc/host/sdhci-msm.c | 2 +- drivers/net/dsa/mt7530.c | 6 +- drivers/net/ethernet/amd/pds_core/adminq.c | 36 +- drivers/net/ethernet/amd/pds_core/auxbus.c | 3 - drivers/net/ethernet/amd/pds_core/core.c | 9 +- drivers/net/ethernet/amd/pds_core/core.h | 4 +- drivers/net/ethernet/amd/pds_core/devlink.c | 4 +- drivers/net/ethernet/freescale/enetc/enetc.c | 45 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 24 +- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 10 +- .../net/ethernet/mellanox/mlx5/core/lib/fs_ttc.c | 26 +- .../net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 18 - drivers/net/ethernet/stmicro/stmmac/dwmac1000.h | 4 +- .../net/ethernet/stmicro/stmmac/dwmac1000_core.c | 2 +- .../net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c | 2 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 62 +- drivers/net/ethernet/sun/niu.c | 2 + drivers/net/phy/dp83822.c | 40 +- drivers/net/phy/microchip.c | 46 +- drivers/net/phy/phy_device.c | 53 +- drivers/net/phy/phy_led_triggers.c | 23 +- drivers/net/phy/phylink.c | 164 +++- drivers/net/virtio_net.c | 133 ++- drivers/net/vmxnet3/vmxnet3_xdp.c | 2 +- drivers/net/xen-netfront.c | 19 +- drivers/ntb/hw/amd/ntb_hw_amd.c | 1 + drivers/ntb/hw/idt/ntb_hw_idt.c | 18 +- drivers/nvme/host/core.c | 9 + drivers/nvme/host/multipath.c | 2 +- drivers/nvme/target/core.c | 3 + drivers/nvme/target/fc.c | 25 +- drivers/nvme/target/pci-epf.c | 14 +- drivers/of/resolver.c | 37 +- drivers/pci/msi/msi.c | 38 +- drivers/phy/rockchip/phy-rockchip-usbdp.c | 1 - drivers/pinctrl/pinctrl-mcp23s08.c | 23 +- drivers/pinctrl/renesas/pinctrl-rza2.c | 3 + drivers/platform/x86/x86-android-tablets/dmi.c | 14 +- drivers/platform/x86/x86-android-tablets/other.c | 160 ++-- .../x86/x86-android-tablets/x86-android-tablets.h | 3 +- drivers/pwm/core.c | 13 +- drivers/pwm/pwm-axi-pwmgen.c | 10 +- drivers/regulator/rk808-regulator.c | 4 +- drivers/rtc/rtc-pcf85063.c | 19 +- drivers/s390/char/sclp_con.c | 17 + drivers/s390/char/sclp_tty.c | 12 + drivers/s390/net/ism_drv.c | 1 - drivers/scsi/hisi_sas/hisi_sas_main.c | 20 + drivers/scsi/mpi3mr/mpi3mr_fw.c | 2 +- drivers/scsi/pm8001/pm8001_sas.c | 1 + drivers/scsi/scsi.c | 36 +- drivers/scsi/scsi_lib.c | 6 +- drivers/soc/qcom/ice.c | 48 ++ drivers/spi/spi-imx.c | 5 +- drivers/spi/spi-tegra210-quad.c | 6 +- .../staging/gpib/agilent_82350b/agilent_82350b.c | 10 +- drivers/thunderbolt/tb.c | 16 +- drivers/tty/serial/msm_serial.c | 6 + drivers/tty/serial/sifive.c | 6 + drivers/tty/vt/selection.c | 5 +- drivers/ufs/core/ufs-mcq.c | 12 +- drivers/ufs/core/ufshcd.c | 2 + drivers/ufs/host/ufs-exynos.c | 44 +- drivers/ufs/host/ufs-exynos.h | 1 + drivers/ufs/host/ufs-qcom.c | 2 +- drivers/usb/cdns3/cdns3-gadget.c | 2 + drivers/usb/chipidea/ci_hdrc_imx.c | 44 +- drivers/usb/class/cdc-wdm.c | 21 +- drivers/usb/core/quirks.c | 9 + drivers/usb/dwc3/dwc3-pci.c | 10 + drivers/usb/dwc3/dwc3-xilinx.c | 4 +- drivers/usb/dwc3/gadget.c | 28 +- drivers/usb/gadget/udc/aspeed-vhub/dev.c | 3 + drivers/usb/host/max3421-hcd.c | 7 + drivers/usb/host/ohci-pci.c | 23 + drivers/usb/host/xhci-hub.c | 30 +- drivers/usb/host/xhci-mvebu.c | 10 - drivers/usb/host/xhci-mvebu.h | 6 - drivers/usb/host/xhci-plat.c | 2 +- drivers/usb/host/xhci-ring.c | 75 +- drivers/usb/host/xhci.c | 4 +- drivers/usb/host/xhci.h | 4 +- drivers/usb/serial/ftdi_sio.c | 2 + drivers/usb/serial/ftdi_sio_ids.h | 5 + drivers/usb/serial/option.c | 3 + drivers/usb/serial/usb-serial-simple.c | 7 + drivers/usb/storage/unusual_uas.h | 7 + drivers/usb/typec/class.c | 24 +- drivers/usb/typec/class.h | 1 + drivers/usb/typec/ucsi/cros_ec_ucsi.c | 5 +- drivers/usb/typec/ucsi/ucsi.c | 19 +- drivers/usb/typec/ucsi/ucsi.h | 6 +- drivers/usb/typec/ucsi/ucsi_acpi.c | 5 +- drivers/usb/typec/ucsi/ucsi_ccg.c | 67 +- drivers/vhost/scsi.c | 80 +- drivers/virtio/virtio_pci_modern.c | 4 +- drivers/xen/Kconfig | 2 +- fs/btrfs/file.c | 9 +- fs/btrfs/zoned.c | 1 - fs/ceph/inode.c | 2 +- fs/ext4/block_validity.c | 5 +- fs/ext4/inode.c | 7 +- fs/iomap/buffered-io.c | 2 +- fs/namespace.c | 69 +- fs/netfs/main.c | 4 + fs/ntfs3/file.c | 20 +- fs/smb/client/sess.c | 60 +- fs/smb/client/smb1ops.c | 36 + fs/smb/server/vfs_cache.c | 8 +- fs/splice.c | 2 +- fs/xattr.c | 4 +- include/linux/blkdev.h | 4 - include/linux/energy_model.h | 12 +- include/linux/math.h | 12 + include/linux/msi.h | 3 +- include/linux/pci.h | 2 + include/linux/pci_ids.h | 1 + include/linux/phy.h | 4 + include/linux/phylink.h | 4 + include/net/netfilter/nft_fib.h | 21 + include/soc/qcom/ice.h | 2 + include/uapi/linux/virtio_pci.h | 1 + init/Kconfig | 2 +- io_uring/io_uring.c | 15 +- io_uring/refs.h | 7 + kernel/bpf/bpf_cgrp_storage.c | 11 +- kernel/bpf/hashtab.c | 6 +- kernel/bpf/preload/bpf_preload_kern.c | 1 + kernel/bpf/syscall.c | 6 +- kernel/bpf/verifier.c | 32 + kernel/cgroup/cgroup.c | 29 + kernel/cgroup/cpuset-internal.h | 1 + kernel/cgroup/cpuset.c | 14 + kernel/dma/contiguous.c | 3 +- kernel/events/core.c | 6 +- kernel/irq/msi.c | 2 +- kernel/panic.c | 6 + kernel/power/energy_model.c | 47 +- kernel/sched/ext.c | 4 +- kernel/sched/fair.c | 4 +- kernel/time/tick-common.c | 22 + kernel/trace/bpf_trace.c | 7 +- kernel/trace/trace.c | 10 + lib/Kconfig.ubsan | 1 - lib/crypto/Kconfig | 37 +- lib/test_ubsan.c | 18 +- mm/vmscan.c | 7 + net/9p/client.c | 30 +- net/9p/trans_fd.c | 17 +- net/core/lwtunnel.c | 26 +- net/core/selftests.c | 18 +- net/ipv4/netfilter/nft_fib_ipv4.c | 11 +- net/ipv6/netfilter/nft_fib_ipv6.c | 19 +- net/mptcp/pm_userspace.c | 6 +- net/sched/sch_hfsc.c | 23 +- net/tipc/monitor.c | 3 +- rust/Makefile | 8 +- rust/kernel/firmware.rs | 8 +- scripts/Makefile.lib | 2 +- scripts/Makefile.vmlinux | 4 + sound/soc/codecs/aw88081.c | 10 + sound/soc/codecs/wcd934x.c | 2 +- sound/soc/fsl/fsl_asrc_dma.c | 15 +- sound/virtio/virtio_pcm.c | 21 +- tools/arch/x86/lib/x86-opcode-map.txt | 4 +- tools/bpf/bpftool/prog.c | 1 + tools/objtool/check.c | 36 +- tools/testing/selftests/bpf/cap_helpers.c | 8 +- tools/testing/selftests/bpf/cap_helpers.h | 1 + tools/testing/selftests/bpf/network_helpers.c | 33 +- tools/testing/selftests/bpf/prog_tests/verifier.c | 4 +- tools/testing/selftests/bpf/test_loader.c | 6 +- tools/testing/selftests/mincore/mincore_selftest.c | 3 - tools/testing/selftests/pcie_bwctrl/Makefile | 3 +- tools/testing/selftests/ublk/test_stripe_04.sh | 24 + 329 files changed, 3712 insertions(+), 2060 deletions(-)

6 months

19
340
0 0

[PATCH] ACPI/PPTT: fix off-by-one error

by Heyne, Maximilian

Commit 7ab4f0e37a0f ("ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls") corrects the processer entry size but unmasked a longer standing bug where the last entry in the structure can get skipped due to an off-by-one mistake if the last entry ends exactly at the end of the ACPI subtable. The error manifests for instance on EC2 Graviton Metal instances with ACPI PPTT: PPTT table found, but unable to locate core 63 (63) [...] ACPI: SPE must be homogeneous Fixes: 2bd00bcd73e5 ("ACPI/PPTT: Add Processor Properties Topology Table parsing") Cc: stable(a)vger.kernel.org Signed-off-by: Maximilian Heyne <mheyne(a)amazon.de> --- drivers/acpi/pptt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c index f73ce6e13065d..4364da90902e5 100644 --- a/drivers/acpi/pptt.c +++ b/drivers/acpi/pptt.c @@ -231,7 +231,7 @@ static int acpi_pptt_leaf_node(struct acpi_table_header *table_hdr, sizeof(struct acpi_table_pptt)); proc_sz = sizeof(struct acpi_pptt_processor); - while ((unsigned long)entry + proc_sz < table_end) { + while ((unsigned long)entry + proc_sz <= table_end) { cpu_node = (struct acpi_pptt_processor *)entry; if (entry->type == ACPI_PPTT_TYPE_PROCESSOR && cpu_node->parent == node_entry) @@ -273,7 +273,7 @@ static struct acpi_pptt_processor *acpi_find_processor_node(struct acpi_table_he proc_sz = sizeof(struct acpi_pptt_processor); /* find the processor structure associated with this cpuid */ - while ((unsigned long)entry + proc_sz < table_end) { + while ((unsigned long)entry + proc_sz <= table_end) { cpu_node = (struct acpi_pptt_processor *)entry; if (entry->length == 0) { -- 2.47.1 Amazon Web Services Development Center Germany GmbH Tamara-Danz-Str. 13 10243 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 257764 B Sitz: Berlin Ust-ID: DE 365 538 597

6 months

4
29
0 0

Re: Patch "spi: tegra114: Don't fail set_cs_timing when delays are zero" has been added to the 6.1-stable tree

by Jon Hunter

On 07/05/2025 16:43, Sasha Levin wrote: > This is a note to let you know that I've just added the patch titled > > spi: tegra114: Don't fail set_cs_timing when delays are zero > > to the 6.1-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > spi-tegra114-don-t-fail-set_cs_timing-when-delays-ar.patch > and it can be found in the queue-6.1 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. Please don't queue this up for stable yet. This fix is not correct and there is another change pending to correct this change. Jon -- nvpublic

6 months

2
1
0 0

[PATCH v3] NFSD: Implement FATTR4_CLONE_BLKSIZE attribute

by cel＠kernel.org

From: Chuck Lever <chuck.lever(a)oracle.com> RFC 7862 states that if an NFS server implements a CLONE operation, it MUST also implement FATTR4_CLONE_BLKSIZE. NFSD implements CLONE, but does not implement FATTR4_CLONE_BLKSIZE. Note that in Section 12.2, RFC 7862 claims that FATTR4_CLONE_BLKSIZE is RECOMMENDED, not REQUIRED. Likely this is because a minor version is not permitted to add a REQUIRED attribute. Confusing. We assume this attribute reports a block size as a count of bytes, as RFC 7862 does not specify a unit. Reported-by: Roland Mainz <roland.mainz(a)nrubsig.org> Suggested-by: Christoph Hellwig <hch(a)infradead.org> Reviewed-by: Roland Mainz <roland.mainz(a)nrubsig.org> Cc: stable(a)vger.kernel.org # v6.7+ Signed-off-by: Chuck Lever <chuck.lever(a)oracle.com> --- fs/nfsd/nfs4xdr.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index e67420729ecd..9eb8e5704622 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -3391,6 +3391,23 @@ static __be32 nfsd4_encode_fattr4_suppattr_exclcreat(struct xdr_stream *xdr, return nfsd4_encode_bitmap4(xdr, supp[0], supp[1], supp[2]); } +/* + * Copied from generic_remap_checks/generic_remap_file_range_prep. + * + * These generic functions use the file system's s_blocksize, but + * individual file systems aren't required to use + * generic_remap_file_range_prep. Until there is a mechanism for + * determining a particular file system's (or file's) clone block + * size, this is the best NFSD can do. + */ +static __be32 nfsd4_encode_fattr4_clone_blksize(struct xdr_stream *xdr, + const struct nfsd4_fattr_args *args) +{ + struct inode *inode = d_inode(args->dentry); + + return nfsd4_encode_uint32_t(xdr, inode->i_sb->s_blocksize); +} + #ifdef CONFIG_NFSD_V4_SECURITY_LABEL static __be32 nfsd4_encode_fattr4_sec_label(struct xdr_stream *xdr, const struct nfsd4_fattr_args *args) @@ -3545,7 +3562,7 @@ static const nfsd4_enc_attr nfsd4_enc_fattr4_encode_ops[] = { [FATTR4_MODE_SET_MASKED] = nfsd4_encode_fattr4__noop, [FATTR4_SUPPATTR_EXCLCREAT] = nfsd4_encode_fattr4_suppattr_exclcreat, [FATTR4_FS_CHARSET_CAP] = nfsd4_encode_fattr4__noop, - [FATTR4_CLONE_BLKSIZE] = nfsd4_encode_fattr4__noop, + [FATTR4_CLONE_BLKSIZE] = nfsd4_encode_fattr4_clone_blksize, [FATTR4_SPACE_FREED] = nfsd4_encode_fattr4__noop, [FATTR4_CHANGE_ATTR_TYPE] = nfsd4_encode_fattr4__noop, -- 2.49.0

6 months

3
2
0 0

[PATCH] arm64: dts: qcom: x1e80100: Fix PCIe 3rd controller DBI size

by Abel Vesa

According to documentation, the DBI range size is 0xf20. So fix it. Cc: stable(a)vger.kernel.org # 6.14 Fixes: f8af195beeb0 ("arm64: dts: qcom: x1e80100: Add support for PCIe3 on x1e80100") Signed-off-by: Abel Vesa <abel.vesa(a)linaro.org> --- arch/arm64/boot/dts/qcom/x1e80100.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi index 46b79fce92c90d969e3de48bc88e27915d1592bb..34ccabc3cc302b17e944b4343a37fab0bb6334e9 100644 --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi @@ -3126,7 +3126,7 @@ pcie3: pcie@1bd0000 { device_type = "pci"; compatible = "qcom,pcie-x1e80100"; reg = <0x0 0x01bd0000 0x0 0x3000>, - <0x0 0x78000000 0x0 0xf1d>, + <0x0 0x78000000 0x0 0xf20>, <0x0 0x78000f40 0x0 0xa8>, <0x0 0x78001000 0x0 0x1000>, <0x0 0x78100000 0x0 0x100000>, --- base-commit: bc8aa6cdadcc00862f2b5720e5de2e17f696a081 change-id: 20250422-x1e80100-dts-fix-pcie3-dbi-size-56fc110aa36d Best regards, -- Abel Vesa <abel.vesa(a)linaro.org>

6 months

3
2
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[PATCH RESEND] drm/tegra: fix a possible null pointer dereference

by Qiu-ji Chen

In tegra_crtc_reset(), new memory is allocated with kzalloc(), but no check is performed. Before calling __drm_atomic_helper_crtc_reset, state should be checked to prevent possible null pointer dereference. Fixes: b7e0b04ae450 ("drm/tegra: Convert to using __drm_atomic_helper_crtc_reset() for reset.") Cc: stable(a)vger.kernel.org Signed-off-by: Qiu-ji Chen <chenqiuji666(a)gmail.com> --- drivers/gpu/drm/tegra/dc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index be61c9d1a4f0..1ed30853bd9e 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -1388,7 +1388,10 @@ static void tegra_crtc_reset(struct drm_crtc *crtc) if (crtc->state) tegra_crtc_atomic_destroy_state(crtc, crtc->state); - __drm_atomic_helper_crtc_reset(crtc, &state->base); + if (state) + __drm_atomic_helper_crtc_reset(crtc, &state->base); + else + __drm_atomic_helper_crtc_reset(crtc, NULL); } static struct drm_crtc_state * -- 2.34.1

6 months

2
1
0 0

[Patch v3 3/5] uio_hv_generic: Align ring size to system page

by longli＠linuxonhyperv.com

From: Long Li <longli(a)microsoft.com> Following the ring header, the ring data should align to system page boundary. Adjust the size if necessary. Cc: stable(a)vger.kernel.org Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Signed-off-by: Long Li <longli(a)microsoft.com> --- drivers/uio/uio_hv_generic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index 08385b04c4ab..cb2e7e0e1540 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -256,6 +256,9 @@ hv_uio_probe(struct hv_device *dev, if (!ring_size) ring_size = SZ_2M; + /* Adjust ring size if necessary to have it page aligned */ + ring_size = VMBUS_RING_SIZE(ring_size); + pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; -- 2.34.1

6 months

2
1
0 0

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