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

Nobody is reading this list per se. See this article on reporting kernel bugs.

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syzbot, … Qi Zheng6

5:44 AM

[syzbot] [mm?] WARNING: bad unlock balance in do_wp_page

On 4/27/26 3:24 PM, Qi Zheng wrote: > > > On 4/27/26 1:55 AM, Andrew Morton wrote: >>

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[syzbot] [mm?] WARNING: bad unlock balance in do_wp_page

On 4/27/26 3:24 PM, Qi Zheng wrote: > > > On 4/27/26 1:55 AM, Andrew Morton wrote: >>

5:44 AM

Hillf Danton, Jeongjun Park2

5:37 AM

Re: [PATCH] wifi: rsi: fix kthread lifetime race between self-exit and external-stop

Hi Hillf, Hillf Danton <hda...@sina.com> wrote: > > On Thu, 23 Apr 2026 02:38:46 +0900

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Re: [PATCH] wifi: rsi: fix kthread lifetime race between self-exit and external-stop

Hi Hillf, Hillf Danton <hda...@sina.com> wrote: > > On Thu, 23 Apr 2026 02:38:46 +0900

5:37 AM

syzbot, Edward Adam Davis4

5:18 AM

[syzbot] [input?] [usb?] KASAN: slab-use-after-free Read in hidraw_report_event

#syz test diff --git a/drivers/hid/hid-core.cb/drivers/hid/hid-core.c index 0b588e002834..

unread,

[syzbot] [input?] [usb?] KASAN: slab-use-after-free Read in hidraw_report_event

#syz test diff --git a/drivers/hid/hid-core.cb/drivers/hid/hid-core.c index 0b588e002834..

5:18 AM

5:11 AM

[syzbot] [wireguard?] BUG: soft lockup in wg_packet_decrypt_worker

Hello, syzbot found the following issue on: HEAD commit: 897d54018cc9 Merge tag 'fbdev-for-7.1-

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[syzbot] [wireguard?] BUG: soft lockup in wg_packet_decrypt_worker

Hello, syzbot found the following issue on: HEAD commit: 897d54018cc9 Merge tag 'fbdev-for-7.1-

5:11 AM

5:11 AM

[syzbot] [hams?] KASAN: slab-use-after-free Read in ax25_send_frame (3)

Hello, syzbot found the following issue on: HEAD commit: e728258debd5 Merge tag 'net-7.1-rc1'

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[syzbot] [hams?] KASAN: slab-use-after-free Read in ax25_send_frame (3)

Hello, syzbot found the following issue on: HEAD commit: e728258debd5 Merge tag 'net-7.1-rc1'

5:11 AM

5:02 AM

[syzbot] [ocfs2?] kernel BUG in ocfs2_truncate_file (2)

Hello, syzbot found the following issue on: HEAD commit: 2e6803928193 Merge tag 'tracefs-v7.1-2

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[syzbot] [ocfs2?] kernel BUG in ocfs2_truncate_file (2)

Hello, syzbot found the following issue on: HEAD commit: 2e6803928193 Merge tag 'tracefs-v7.1-2

5:02 AM

syzbot ci, syzbot ci2

4:42 AM

[syzbot ci] Re: Prepare to lift lookup out of exclusive lock for directory ops

syzbot ci has tested the following series [v3] Prepare to lift lookup out of exclusive lock for

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[syzbot ci] Re: Prepare to lift lookup out of exclusive lock for directory ops

syzbot ci has tested the following series [v3] Prepare to lift lookup out of exclusive lock for

4:42 AM

Theodore Tso, Demi Marie Obenour3

3:07 AM

Re: [BUG] ext4: BUG_ON in ext4_write_inline_data (fs/ext4/inline.c:240)

On 4/21/26 08:20, Theodore Tso wrote: > On Tue, Apr 21, 2026 at 07:32:43PM +0800, Zw Tang wrote:

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Re: [BUG] ext4: BUG_ON in ext4_write_inline_data (fs/ext4/inline.c:240)

On 4/21/26 08:20, Theodore Tso wrote: > On Tue, Apr 21, 2026 at 07:32:43PM +0800, Zw Tang wrote:

3:07 AM

syzbot, … Michal Hocko4

3:00 AM

[syzbot] [mm?] possible deadlock in rhashtable_free_and_destroy

Same issue as https://lkml.kernel.org/r/202604211323...@intel.com On Tue 21-04-26 14:27:35,

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[syzbot] [mm?] possible deadlock in rhashtable_free_and_destroy

Same issue as https://lkml.kernel.org/r/202604211323...@intel.com On Tue 21-04-26 14:27:35,

3:00 AM

Apr 26

[syzbot] [ext4?] BUG: sleeping function called from invalid context in jbd2_journal_commit_transaction

Hello, syzbot found the following issue on: HEAD commit: 6596a02b2078 Merge tag 'drm-next-2026-04

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[syzbot] [ext4?] BUG: sleeping function called from invalid context in jbd2_journal_commit_transaction

Hello, syzbot found the following issue on: HEAD commit: 6596a02b2078 Merge tag 'drm-next-2026-04

Apr 26

syzbot, Arjan van de Ven2

Apr 26

[syzbot] [bluetooth?] WARNING in hci_send_cmd (4)

This email is created by automation to help kernel developers deal with a large volume of AI

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[syzbot] [bluetooth?] WARNING in hci_send_cmd (4)

This email is created by automation to help kernel developers deal with a large volume of AI

Apr 26

Apr 26

[syzbot ci] Re: mm: improve write performance with RWF_DONTCACHE

syzbot ci has tested the following series [v3] mm: improve write performance with RWF_DONTCACHE https

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[syzbot ci] Re: mm: improve write performance with RWF_DONTCACHE

syzbot ci has tested the following series [v3] mm: improve write performance with RWF_DONTCACHE https

Apr 26

Apr 26

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

syzbot ci has tested the following series [v2] Implement a new generic pagewalk API https://lore.

unread,

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

syzbot ci has tested the following series [v2] Implement a new generic pagewalk API https://lore.

Apr 26

Apr 26

[syzbot] [net?] kernel BUG in pn_socket_autobind

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

unread,

[syzbot] [net?] kernel BUG in pn_socket_autobind

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

Apr 26

syzbot, Edward Adam Davis4

Apr 26

[syzbot] [media?] memory leak in dvb_dmxdev_add_pid

The user first executes set pes filter to create a PID, and subsequently executes set filter to sec.

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[syzbot] [media?] memory leak in dvb_dmxdev_add_pid

The user first executes set pes filter to create a PID, and subsequently executes set filter to sec.

Apr 26

Apr 26

[syzbot] [input?] possible deadlock in tasklet_action_common

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

unread,

[syzbot] [input?] possible deadlock in tasklet_action_common

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

Apr 26

syzbot, Hillf Danton14

Apr 25

[syzbot] [usb?] memory leak in hub_event (4)

> Date: Sat, 25 Apr 2026 07:43:17 -0700 > For archival purposes, forwarding an incoming command

unread,

[syzbot] [usb?] memory leak in hub_event (4)

> Date: Sat, 25 Apr 2026 07:43:17 -0700 > For archival purposes, forwarding an incoming command

Apr 25

syzbot, Arjan van de Ven2

Apr 25

[syzbot] [i2c?] WARNING: refcount bug in i2c_get_adapter (2)

This email is created by automation to help kernel developers deal with a large volume of AI

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[syzbot] [i2c?] WARNING: refcount bug in i2c_get_adapter (2)

This email is created by automation to help kernel developers deal with a large volume of AI

Apr 25

Apr 25

[syzbot] [mm?] WARNING: bad unlock balance in folios_put_refs

> #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git This crash does

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[syzbot] [mm?] WARNING: bad unlock balance in folios_put_refs

> #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git This crash does

Apr 25

syzbot, … Lance Yang5

Apr 25

[syzbot] [mm?] kernel BUG in hpage_collapse_scan_file (2)

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

unread,

[syzbot] [mm?] kernel BUG in hpage_collapse_scan_file (2)

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

Apr 25

Apr 25

[syzbot] [btrfs] possible deadlock in page_cache_ra_unbounded (3)

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

unread,

[syzbot] [btrfs] possible deadlock in page_cache_ra_unbounded (3)

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

Apr 25

Apr 25

[syzbot] [mm?] KASAN: use-after-free Read in copy_folio_from_iter_atomic (2)

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

unread,

[syzbot] [mm?] KASAN: use-after-free Read in copy_folio_from_iter_atomic (2)

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

Apr 25

Apr 25

[syzbot] [fs?] [mm?] [io-uring?] INFO: task hung in hugetlbfs_zero_partial_page

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

unread,

[syzbot] [fs?] [mm?] [io-uring?] INFO: task hung in hugetlbfs_zero_partial_page

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

Apr 25

syzbot, … Edward Adam Davis7

Apr 25

[syzbot] [isdn4linux?] [nilfs?] INFO: task hung in mISDN_ioctl

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

unread,

[syzbot] [isdn4linux?] [nilfs?] INFO: task hung in mISDN_ioctl

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

Apr 25

Apr 25

[syzbot] [mm?] WARNING: lock held when returning to user space in __pte_offset_map

Hello, syzbot found the following issue on: HEAD commit: dd6c438c3e64 Merge tag 'vfs-7.1-rc1.

unread,

[syzbot] [mm?] WARNING: lock held when returning to user space in __pte_offset_map

Hello, syzbot found the following issue on: HEAD commit: dd6c438c3e64 Merge tag 'vfs-7.1-rc1.

Apr 25

Apr 25

[syzbot] [wireless?] WARNING in drv_get_tsf (2)

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

unread,

[syzbot] [wireless?] WARNING in drv_get_tsf (2)

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

Apr 25

Apr 24

[syzbot] [block?] possible deadlock in bioset_exit

Hello, syzbot found the following issue on: HEAD commit: dd6c438c3e64 Merge tag 'vfs-7.1-rc1.

unread,

[syzbot] [block?] possible deadlock in bioset_exit

Hello, syzbot found the following issue on: HEAD commit: dd6c438c3e64 Merge tag 'vfs-7.1-rc1.

Apr 24

Apr 24

[syzbot] [ocfs2?] possible deadlock in ocfs2_evict_inode

syzbot has found a reproducer for the following issue on: HEAD commit: dd6c438c3e64 Merge tag '

unread,

[syzbot] [ocfs2?] possible deadlock in ocfs2_evict_inode

syzbot has found a reproducer for the following issue on: HEAD commit: dd6c438c3e64 Merge tag '

Apr 24

Apr 24

[syzbot ci] Re: vsock/virtio: fix memory leak in virtio_transport_recv_listen()

syzbot ci has tested the following series [v1] vsock/virtio: fix memory leak in

unread,

[syzbot ci] Re: vsock/virtio: fix memory leak in virtio_transport_recv_listen()

syzbot ci has tested the following series [v1] vsock/virtio: fix memory leak in

Apr 24

Apr 24

[syzbot] [mm?] WARNING: bad unlock balance in __zap_vma_range

Hello, syzbot found the following issue on: HEAD commit: c1f49dea2b8f Merge tag 'mm-hotfixes-

unread,

[syzbot] [mm?] WARNING: bad unlock balance in __zap_vma_range

Hello, syzbot found the following issue on: HEAD commit: c1f49dea2b8f Merge tag 'mm-hotfixes-

Apr 24

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