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Linux kernel bugs found with syzkaller fuzzer and reported automatically by syzbot.

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1:36 PM

[syzbot] [mm?] WARNING in __page_table_check_ptes_set (3)

syzbot has found a reproducer for the following issue on: HEAD commit: 4b4362973b6f Merge branch

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[syzbot] [mm?] WARNING in __page_table_check_ptes_set (3)

syzbot has found a reproducer for the following issue on: HEAD commit: 4b4362973b6f Merge branch

1:36 PM

syzbot, Thomas Gleixner3

12:37 PM

[syzbot] [kernel?] possible deadlock in worker_thread (3)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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[syzbot] [kernel?] possible deadlock in worker_thread (3)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

12:37 PM

syzbot, … Alexander Potapenko12

8:39 AM

[syzbot] [kernel?] upstream test error: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt

On Wed, May 13, 2026 at 2:36 AM Thomas Gleixner <tg...@kernel.org> wrote: > > Alexander!

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[syzbot] [kernel?] upstream test error: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt

On Wed, May 13, 2026 at 2:36 AM Thomas Gleixner <tg...@kernel.org> wrote: > > Alexander!

8:39 AM

syzbot, Will Deacon2

8:05 AM

[syzbot] [mm?] [arch?] BUG: sleeping function called from invalid context in __tlb_batch_free_encoded_pages

I finally got a chance to look at this one... On Thu, Apr 30, 2026 at 12:21:35AM -0700, syzbot wrote:

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[syzbot] [mm?] [arch?] BUG: sleeping function called from invalid context in __tlb_batch_free_encoded_pages

I finally got a chance to look at this one... On Thu, Apr 30, 2026 at 12:21:35AM -0700, syzbot wrote:

8:05 AM

syzbot, Eric Dumazet3

7:20 AM

[syzbot] [net?] KCSAN: data-race in pfifo_fast_dequeue / pfifo_fast_enqueue (6)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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[syzbot] [net?] KCSAN: data-race in pfifo_fast_dequeue / pfifo_fast_enqueue (6)

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

7:20 AM

syzbot, … Maarten Lankhorst3

5:59 AM

[syzbot] [mm?] WARNING in alloc_frozen_pages_noprof (2)

Hey, Den 2026-05-26 kl. 21:58, skrev Andrew Morton: > On Mon, 25 May 2026 19:49:23 -0700 syzbot

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[syzbot] [mm?] WARNING in alloc_frozen_pages_noprof (2)

Hey, Den 2026-05-26 kl. 21:58, skrev Andrew Morton: > On Mon, 25 May 2026 19:49:23 -0700 syzbot

5:59 AM

2:52 AM

[syzbot] [io-uring?] WARNING in io_wq_put_and_exit (2)

Hello, syzbot found the following issue on: HEAD commit: 6a97c4d5262d Merge tag 'for-linus'

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[syzbot] [io-uring?] WARNING in io_wq_put_and_exit (2)

Hello, syzbot found the following issue on: HEAD commit: 6a97c4d5262d Merge tag 'for-linus'

2:52 AM

12:32 AM

[syzbot] Monthly lsm report (May 2026)

Hello lsm maintainers/developers, This is a 31-day syzbot report for the lsm subsystem. All related

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[syzbot] Monthly lsm report (May 2026)

Hello lsm maintainers/developers, This is a 31-day syzbot report for the lsm subsystem. All related

12:32 AM

syzbot, Heitor Alves de Siqueira2

May 26

[syzbot] [bluetooth?] KASAN: slab-use-after-free Read in bnep_add_connection

#syz fix: Bluetooth: bnep: Fix UAF read of dev->name On Tuesday, May 26, 2026 at 3:46:33 AM UTC-3

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[syzbot] [bluetooth?] KASAN: slab-use-after-free Read in bnep_add_connection

#syz fix: Bluetooth: bnep: Fix UAF read of dev->name On Tuesday, May 26, 2026 at 3:46:33 AM UTC-3

May 26

syzbot, … Oliver Hartkopp9

May 26

[syzbot] [can?] general protection fault in can_rx_unregister (2)

On 26.05.26 01:46, Edward Adam Davis wrote: > On Mon, 25 May 2026 20:15:21 +0200, Oliver Hartkopp

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[syzbot] [can?] general protection fault in can_rx_unregister (2)

On 26.05.26 01:46, Edward Adam Davis wrote: > On Mon, 25 May 2026 20:15:21 +0200, Oliver Hartkopp

May 26

May 26

[syzbot] [media?] memory leak in vidtv_psi_service_desc_init (2)

Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: memory

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[syzbot] [media?] memory leak in vidtv_psi_service_desc_init (2)

Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: memory

May 26

syzbot, … Danilo Krummrich6

May 26

[syzbot] [kernel?] linux-next test error: WARNING in class_for_each_device

On Tue May 26, 2026 at 1:59 PM CEST, Tetsuo Handa wrote: > On 2026/05/26 16:19, Tetsuo Handa wrote

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[syzbot] [kernel?] linux-next test error: WARNING in class_for_each_device

On Tue May 26, 2026 at 1:59 PM CEST, Tetsuo Handa wrote: > On 2026/05/26 16:19, Tetsuo Handa wrote

May 26

May 26

[syzbot] [net?] KCSAN: data-race in copy_mm / percpu_counter_add_batch

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

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[syzbot] [net?] KCSAN: data-race in copy_mm / percpu_counter_add_batch

Auto-closing this bug as obsolete. Crashes did not happen for a while, no reproducer and no activity.

May 26

syzbot, Edward Adam Davis4

May 26

[syzbot] [ntfs3?] KMSAN: uninit-value in ni_seek_data_or_hole

The target VCN being sought was not found within runs[0], causing run_lookup() to return false. This

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[syzbot] [ntfs3?] KMSAN: uninit-value in ni_seek_data_or_hole

The target VCN being sought was not found within runs[0], causing run_lookup() to return false. This

May 26

syzbot, Andreas Gruenbacher4

May 26

[syzbot] [gfs2?] general protection fault in gfs2_print_dbg (3)

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

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[syzbot] [gfs2?] general protection fault in gfs2_print_dbg (3)

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

May 26

May 26

[PATCH] drm/lease: cap object_count to avoid order > MAX_PAGE_ORDER warning

cl->object_count comes from userspace unbounded and reaches kzalloc_objs() in fill_object_idr(); a

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[PATCH] drm/lease: cap object_count to avoid order > MAX_PAGE_ORDER warning

cl->object_count comes from userspace unbounded and reaches kzalloc_objs() in fill_object_idr(); a

May 26

May 26

[syzbot ci] Re: Implement a new generic pagewalk API

syzbot ci has tested the following series [v3] Implement a new generic pagewalk API https://lore.

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[syzbot ci] Re: Implement a new generic pagewalk API

syzbot ci has tested the following series [v3] Implement a new generic pagewalk API https://lore.

May 26

May 25

[syzbot] [io-uring?] INFO: task hung in io_sq_thread_park (4)

Hello, syzbot found the following issue on: HEAD commit: 45255ea1ca09 Merge tag 'pm-7.1-rc5'

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[syzbot] [io-uring?] INFO: task hung in io_sq_thread_park (4)

Hello, syzbot found the following issue on: HEAD commit: 45255ea1ca09 Merge tag 'pm-7.1-rc5'

May 25

May 25

[syzbot] [btrfs?] INFO: task hung in btrfs_invalidate_folio (4)

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

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[syzbot] [btrfs?] INFO: task hung in btrfs_invalidate_folio (4)

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

May 25

May 25

[syzbot] [block?] possible deadlock in blk_request_module (2)

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

unread,

[syzbot] [block?] possible deadlock in blk_request_module (2)

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

May 25

syzbot ci, … syzbot ci6

May 25

[syzbot ci] Re: vfs: add O_CREAT|O_DIRECTORY to open*(2)

syzbot ci has tested the suggested fix patch on top of the following series: [v4] vfs: add O_CREAT|

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[syzbot ci] Re: vfs: add O_CREAT|O_DIRECTORY to open*(2)

syzbot ci has tested the suggested fix patch on top of the following series: [v4] vfs: add O_CREAT|

May 25

May 25

[syzbot] INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2)

Hello, syzbot found the following issue on: HEAD commit: e7ae89a0c97c Linux 7.1-rc5 git tree:

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[syzbot] INFO: task kworker/u8:NUM:NUM blocked in I/O wait for more than NUM seconds. (2)

Hello, syzbot found the following issue on: HEAD commit: e7ae89a0c97c Linux 7.1-rc5 git tree:

May 25

May 25

[syzbot] [ocfs2?] possible deadlock in ocfs2_del_inode_from_orphan (2)

Hello, syzbot found the following issue on: HEAD commit: e7ae89a0c97c Linux 7.1-rc5 git tree:

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[syzbot] [ocfs2?] possible deadlock in ocfs2_del_inode_from_orphan (2)

Hello, syzbot found the following issue on: HEAD commit: e7ae89a0c97c Linux 7.1-rc5 git tree:

May 25

syzbot, Jan Kara2

May 25

[syzbot] [fs?] [usb?] [input?] INFO: rcu detected stall in __fsnotify_parent (3)

Hello! On Tue 19-05-26 13:54:37, syzbot wrote: > syzbot found the following issue on: > >

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[syzbot] [fs?] [usb?] [input?] INFO: rcu detected stall in __fsnotify_parent (3)

Hello! On Tue 19-05-26 13:54:37, syzbot wrote: > syzbot found the following issue on: > >

May 25

May 25

[syzbot] [ntfs3?] WARNING in attr_data_get_block_locked (2)

Hello, syzbot found the following issue on: HEAD commit: 6a97c4d5262d Merge tag 'for-linus'

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[syzbot] [ntfs3?] WARNING in attr_data_get_block_locked (2)

Hello, syzbot found the following issue on: HEAD commit: 6a97c4d5262d Merge tag 'for-linus'

May 25

May 25

[syzbot] [ocfs2?] kernel BUG in ocfs2_page_mkwrite (4)

Hello, syzbot found the following issue on: HEAD commit: df685633c3db Merge tag 'rcu-fixes.v7.1-

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[syzbot] [ocfs2?] kernel BUG in ocfs2_page_mkwrite (4)

Hello, syzbot found the following issue on: HEAD commit: df685633c3db Merge tag 'rcu-fixes.v7.1-

May 25

May 24

[syzbot] [block?] possible deadlock in add_disk_fwnode

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

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[syzbot] [block?] possible deadlock in add_disk_fwnode

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

May 24

May 24

[syzbot] [block?] possible deadlock in bdev_open

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

unread,

[syzbot] [block?] possible deadlock in bdev_open

Hello, syzbot found the following issue on: HEAD commit: c1ecb239fa34 Add linux-next specific files

May 24

syzbot, Tetsuo Handa2

May 24

[syzbot] [mm?] BUG: sleeping function called from invalid context in shmem_inode_acct_blocks

#syz dup: WARNING: bad unlock balance in do_wp_page

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[syzbot] [mm?] BUG: sleeping function called from invalid context in shmem_inode_acct_blocks

#syz dup: WARNING: bad unlock balance in do_wp_page

May 24

May 24

[syzbot] Monthly virt report (May 2026)

Hello virt maintainers/developers, This is a 31-day syzbot report for the virt subsystem. All related

unread,

[syzbot] Monthly virt report (May 2026)

Hello virt maintainers/developers, This is a 31-day syzbot report for the virt subsystem. All related

May 24

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