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

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3:00 PM

[syzbot] [net?] WARNING in nsim_fib_event_nb (2)

Hello, syzbot found the following issue on: HEAD commit: d8674294aefe Merge git://git.kernel.org/pub/

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[syzbot] [net?] WARNING in nsim_fib_event_nb (2)

Hello, syzbot found the following issue on: HEAD commit: d8674294aefe Merge git://git.kernel.org/pub/

3:00 PM

syzbot, Hillf Danton4

2:41 PM

[syzbot] [ext4?] possible deadlock in ext4_writepages (2)

syzbot suspects this issue was fixed by commit: commit 2c3447a9c4fe17c713c014f79d2df485f3829c0e

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[syzbot] [ext4?] possible deadlock in ext4_writepages (2)

syzbot suspects this issue was fixed by commit: commit 2c3447a9c4fe17c713c014f79d2df485f3829c0e

2:41 PM

Drif Abdelmalek Mohamed Said, syzbot5

2:04 PM

[PATCH] configfs: fix slab-UAF Write in config_item_put

#syz test diff --git a/fs/configfs/symlink.cb/fs/configfs/symlink.c index 89178f5d371a..7d746a10c369

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[PATCH] configfs: fix slab-UAF Write in config_item_put

#syz test diff --git a/fs/configfs/symlink.cb/fs/configfs/symlink.c index 89178f5d371a..7d746a10c369

2:04 PM

10:20 AM

[syzbot] [kernfs?] KASAN: slab-use-after-free Read in __kernfs_new_node

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

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[syzbot] [kernfs?] KASAN: slab-use-after-free Read in __kernfs_new_node

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

10:20 AM

9:42 AM

[syzbot] [nvme?] WARNING in nvme_tcp_init_request

Hello, syzbot found the following issue on: HEAD commit: 2efb7a11f1aa Add linux-next specific files

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[syzbot] [nvme?] WARNING in nvme_tcp_init_request

Hello, syzbot found the following issue on: HEAD commit: 2efb7a11f1aa Add linux-next specific files

9:42 AM

syzbot, Jason Gunthorpe2

9:34 AM

[syzbot] [iommu?] WARNING in iommu_setup_default_domain

On Thu, Oct 15, 2026 at 08:41:24PM -0700, syzbot wrote: > Hello, > > syzbot found the

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[syzbot] [iommu?] WARNING in iommu_setup_default_domain

On Thu, Oct 15, 2026 at 08:41:24PM -0700, syzbot wrote: > Hello, > > syzbot found the

9:34 AM

syzbot, mixalhs8

8:57 AM

[syzbot] [netfilter?] WARNING in nf_flow_table_extend_ct_timeout

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

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[syzbot] [netfilter?] WARNING in nf_flow_table_extend_ct_timeout

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

8:57 AM

syzbot, Hillf Danton4

8:56 AM

[syzbot] [i2c?] [usb?] INFO: trying to register non-static key in i2c_register_adapter

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

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[syzbot] [i2c?] [usb?] INFO: trying to register non-static key in i2c_register_adapter

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

8:56 AM

8:35 AM

[syzbot] [rdma?] WARNING in __rxe_cleanup

Hello, syzbot found the following issue on: HEAD commit: c03c1a14507d Linux 7.3 git tree: upstream

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[syzbot] [rdma?] WARNING in __rxe_cleanup

Hello, syzbot found the following issue on: HEAD commit: c03c1a14507d Linux 7.3 git tree: upstream

8:35 AM

David Hildenbrand (Arm), Mingbing Zhai4

6:14 AM

Re: [PATCH v2] virtio_balloon: drain update works on probe error paths

init_vqs() arms the stats virtqueue callback, so an update work can already be queued on the system

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Re: [PATCH v2] virtio_balloon: drain update works on probe error paths

init_vqs() arms the stats virtqueue callback, so an update work can already be queued on the system

6:14 AM

syzbot, … Thomas Gleixner9

5:18 AM

[syzbot] [kernel?] general protection fault in timers_dead_cpu

syzbot reported a NULL pointer dereference in the CPU hotplug code. It is caused by the lack of

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[syzbot] [kernel?] general protection fault in timers_dead_cpu

syzbot reported a NULL pointer dereference in the CPU hotplug code. It is caused by the lack of

5:18 AM

syzbot, … Qing Wang7

5:15 AM

[syzbot] [perf?] possible deadlock in refcount_dec_and_mutex_lock (2)

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

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[syzbot] [perf?] possible deadlock in refcount_dec_and_mutex_lock (2)

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

5:15 AM

12:20 AM

[syzbot] [ext4?] possible deadlock in ext4_xattr_set_handle (7)

syzbot suspects this issue was fixed by commit: commit 7461c60b9c6a839b13ad4c3490681a0cf5aa0637

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[syzbot] [ext4?] possible deadlock in ext4_xattr_set_handle (7)

syzbot suspects this issue was fixed by commit: commit 7461c60b9c6a839b13ad4c3490681a0cf5aa0637

12:20 AM

Oct 22

[syzbot] [fs?] possible deadlock in v2_write_dquot

Hello, syzbot found the following issue on: HEAD commit: a0ff06b3a7bd Merge tag 'firewire-fixes-

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[syzbot] [fs?] possible deadlock in v2_write_dquot

Hello, syzbot found the following issue on: HEAD commit: a0ff06b3a7bd Merge tag 'firewire-fixes-

Oct 22

syzbot, Peter Zijlstra6

Oct 22

[syzbot] [kernel?] WARNING in update_curr_idle

This bug is marked as fixed by commit: c095741713d1 sched/fair: Fix newidle vs core-sched But I can

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[syzbot] [kernel?] WARNING in update_curr_idle

This bug is marked as fixed by commit: c095741713d1 sched/fair: Fix newidle vs core-sched But I can

Oct 22

Oct 22

[syzbot] [mm?] INFO: rcu detected stall in newfstat (4)

Hello, syzbot found the following issue on: HEAD commit: b88c841d1164 Merge tag 'input-for-v7.3-

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[syzbot] [mm?] INFO: rcu detected stall in newfstat (4)

Hello, syzbot found the following issue on: HEAD commit: b88c841d1164 Merge tag 'input-for-v7.3-

Oct 22

Oct 22

[syzbot] [media?] [usb?] kernel BUG in v4l2_device_put

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

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[syzbot] [media?] [usb?] kernel BUG in v4l2_device_put

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

Oct 22

syzbot, Tyler Hicks3

Oct 22

[syzbot] [ecryptfs?] KASAN: slab-out-of-bounds Read in md5_block

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

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[syzbot] [ecryptfs?] KASAN: slab-out-of-bounds Read in md5_block

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

Oct 22

syzbot, … syzbot ci4

Oct 22

[PATCH] usb: gadget: u_serial: pin ports while TTYs are installed

syzbot ci has tested the following series [v2] usb: gadget: u_serial: pin ports while TTYs are

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[PATCH] usb: gadget: u_serial: pin ports while TTYs are installed

syzbot ci has tested the following series [v2] usb: gadget: u_serial: pin ports while TTYs are

Oct 22

syzbot, Edward Adam Davis10

Oct 22

[syzbot] kernel BUG in create_default_group...

mkdir() triggers: configfs_mkdir() -> configfs_attach_group() -> populate_groups() ->

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[syzbot] kernel BUG in create_default_group...

mkdir() triggers: configfs_mkdir() -> configfs_attach_group() -> populate_groups() ->

Oct 22

Oct 22

[syzbot] [input?] [usb?] KASAN: slab-out-of-bounds Read in hid_dump_input

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

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[syzbot] [input?] [usb?] KASAN: slab-out-of-bounds Read in hid_dump_input

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

Oct 22

Oct 22

[syzbot] [fs?] [mm?] KCSAN: data-race in xas_create / xas_find (10)

Hello, syzbot found the following issue on: HEAD commit: a804c5742bff Merge tag 'lsm-pr-20261016

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[syzbot] [fs?] [mm?] KCSAN: data-race in xas_create / xas_find (10)

Hello, syzbot found the following issue on: HEAD commit: a804c5742bff Merge tag 'lsm-pr-20261016

Oct 22

Oct 21

[syzbot] [fs?] UBSAN: shift-out-of-bounds in ufs_fill_super

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

unread,

[syzbot] [fs?] UBSAN: shift-out-of-bounds in ufs_fill_super

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

Oct 21

Oct 21

[syzbot] [mm?] KCSAN: data-race in _copy_to_iter / _copy_to_iter (3)

Hello, syzbot found the following issue on: HEAD commit: a804c5742bff Merge tag 'lsm-pr-20261016

unread,

[syzbot] [mm?] KCSAN: data-race in _copy_to_iter / _copy_to_iter (3)

Hello, syzbot found the following issue on: HEAD commit: a804c5742bff Merge tag 'lsm-pr-20261016

Oct 21

Greg KH, … kernel test robot7

Oct 21

Re: [PATCH] usb-storage: option_ms: bound probe-time bulk transfers

Hi Lee, kernel test robot noticed the following build errors: [auto build test ERROR on usb/usb-

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Re: [PATCH] usb-storage: option_ms: bound probe-time bulk transfers

Hi Lee, kernel test robot noticed the following build errors: [auto build test ERROR on usb/usb-

Oct 21

Oct 21

[syzbot] [usb?] general protection fault in count_matching_names (2)

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

unread,

[syzbot] [usb?] general protection fault in count_matching_names (2)

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

Oct 21

Oct 21

[syzbot] [btrfs?] WARNING in btrfs_put_transaction (6)

Hello, syzbot found the following issue on: HEAD commit: 58161ead29e5 Merge tag 'drm-fixes-2026-

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[syzbot] [btrfs?] WARNING in btrfs_put_transaction (6)

Hello, syzbot found the following issue on: HEAD commit: 58161ead29e5 Merge tag 'drm-fixes-2026-

Oct 21

syzbot, … Andi Shyti3

Oct 21

[syzbot] [usb?] WARNING in ec168_ctrl_msg/usb_submit_urb

Hi, On Sun, Oct 18, 2026 at 12:30:24PM -0400, Alan Stern wrote: > On Sun, Oct 18, 2026 at 09:18:

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[syzbot] [usb?] WARNING in ec168_ctrl_msg/usb_submit_urb

Hi, On Sun, Oct 18, 2026 at 12:30:24PM -0400, Alan Stern wrote: > On Sun, Oct 18, 2026 at 09:18:

Oct 21

Paolo Bertinetti, … Jens Axboe4

Oct 21

[PATCH] ublk: hold RCU read lock in ublk_try_buf_match()

Hi Jens, Gentle ping on this one, Ming has reviewed it. Could you pick it up? Thanks, Paolo

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[PATCH] ublk: hold RCU read lock in ublk_try_buf_match()

Hi Jens, Gentle ping on this one, Ming has reviewed it. Could you pick it up? Thanks, Paolo

Oct 21

syzbot, Eklavya Singh2

Oct 21

Re: [syzbot] [ocfs2?] KASAN: null-ptr-deref Write in fput

#syz test: https://github.com/eklavya072/linux.git ocfs2-hb-dev-race-v2

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Re: [syzbot] [ocfs2?] KASAN: null-ptr-deref Write in fput

#syz test: https://github.com/eklavya072/linux.git ocfs2-hb-dev-race-v2

Oct 21

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