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

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7:38 AM

[syzbot] [rdma?] WARNING in gid_table_release_one (4)

Hello, syzbot found the following issue on: HEAD commit: af4e9ef3d784 uaccess: Fix

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[syzbot] [rdma?] WARNING in gid_table_release_one (4)

Hello, syzbot found the following issue on: HEAD commit: af4e9ef3d784 uaccess: Fix

7:38 AM

syzbot, Tetsuo Handa2

6:07 AM

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

Side effect of commit 77de62ad3de3 ("perf/core: Fix refcount bug and potential UAF in perf_mmap

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

Side effect of commit 77de62ad3de3 ("perf/core: Fix refcount bug and potential UAF in perf_mmap

6:07 AM

6:00 AM

Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_unregister_user

Hello, syzbot tried to test the proposed patch but the build/boot failed: can't ssh into the

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Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_unregister_user

Hello, syzbot tried to test the proposed patch but the build/boot failed: can't ssh into the

6:00 AM

5:52 AM

[syzbot] [usb?] general protection fault in usb_gadget_udc_reset (4)

syzbot has found a reproducer for the following issue on: HEAD commit: 651690480a96 Merge tag '

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[syzbot] [usb?] general protection fault in usb_gadget_udc_reset (4)

syzbot has found a reproducer for the following issue on: HEAD commit: 651690480a96 Merge tag '

5:52 AM

syzbot, Hillf Danton12

5:33 AM

[syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_unregister_user

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

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[syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_unregister_user

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

5:33 AM

syzbot, … Mickaël Salaün3

4:01 AM

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

Thanks. This issue was fixed in -next with https://lore.kernel.org/all/20260217122341.2359582-1-mic@

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

Thanks. This issue was fixed in -next with https://lore.kernel.org/all/20260217122341.2359582-1-mic@

4:01 AM

syzbot, David Howells5

3:45 AM

[syzbot] [netfs?] kernel BUG in netfs_limit_iter

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

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[syzbot] [netfs?] kernel BUG in netfs_limit_iter

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

3:45 AM

syzbot, David Howells11

3:00 AM

[syzbot] [netfs?] BUG: unable to handle kernel NULL pointer dereference in netfs_unbuffered_write

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

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[syzbot] [netfs?] BUG: unable to handle kernel NULL pointer dereference in netfs_unbuffered_write

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

3:00 AM

12:53 AM

[syzbot] [kernel?] WARNING in do_notify_parent

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

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[syzbot] [kernel?] WARNING in do_notify_parent

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

12:53 AM

Mar 6

[syzbot] [wireless?] INFO: task hung in rfkill_uevent_work (2)

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

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[syzbot] [wireless?] INFO: task hung in rfkill_uevent_work (2)

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

Mar 6

Mar 6

Re: [syzbot] [hfs?] KMSAN: uninit-value in hfsplus_strcasecmp (2)

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

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Re: [syzbot] [hfs?] KMSAN: uninit-value in hfsplus_strcasecmp (2)

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

Mar 6

Mar 6

[syzbot] [hfs?] KMSAN: uninit-value in hfsplus_strcasecmp (2)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

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[syzbot] [hfs?] KMSAN: uninit-value in hfsplus_strcasecmp (2)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

Mar 6

syzbot, Josh Poimboeuf2

Mar 6

[syzbot] [kernel?] WARNING in __static_key_slow_dec_cpuslocked (3)

On Wed, Mar 04, 2026 at 12:35:42PM -0800, syzbot wrote: > Hello, > > syzbot found the

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[syzbot] [kernel?] WARNING in __static_key_slow_dec_cpuslocked (3)

On Wed, Mar 04, 2026 at 12:35:42PM -0800, syzbot wrote: > Hello, > > syzbot found the

Mar 6

Mar 6

Re: [syzbot] [ext4?] KASAN: slab-use-after-free Read in ext4_ext_remove_space

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

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Re: [syzbot] [ext4?] KASAN: slab-use-after-free Read in ext4_ext_remove_space

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

Mar 6

Mar 6

[syzbot] [ext4?] KASAN: slab-use-after-free Read in ext4_ext_remove_space

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

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[syzbot] [ext4?] KASAN: slab-use-after-free Read in ext4_ext_remove_space

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

Mar 6

syzbot, Nicolas Dufresne2

Mar 6

[syzbot] Monthly media report (Mar 2026)

Hi, Le mardi 03 mars 2026 à 00:07 -0800, syzbot a écrit : > Hello media maintainers/developers,

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[syzbot] Monthly media report (Mar 2026)

Hi, Le mardi 03 mars 2026 à 00:07 -0800, syzbot a écrit : > Hello media maintainers/developers,

Mar 6

syzbot, … Jan Kara23

Mar 6

[syzbot] [ext4?] INFO: task hung in filename_unlinkat

On Fri 06-03-26 09:31:58, Edward Adam Davis wrote: > On the mkdir/mknod path, when mapping logical

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[syzbot] [ext4?] INFO: task hung in filename_unlinkat

On Fri 06-03-26 09:31:58, Edward Adam Davis wrote: > On the mkdir/mknod path, when mapping logical

Mar 6

Mar 6

[syzbot] [exfat?] [gfs2?] WARNING in filename_symlinkat

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

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[syzbot] [exfat?] [gfs2?] WARNING in filename_symlinkat

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

Mar 6

Mar 6

[syzbot] Monthly fs report (Mar 2026)

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

unread,

[syzbot] Monthly fs report (Mar 2026)

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

Mar 6

Mar 5

[syzbot] [kernel?] KMSAN: uninit-value in timespec64_add_safe

Hello, syzbot found the following issue on: HEAD commit: e2bd1b136926 Merge tag 'core-

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[syzbot] [kernel?] KMSAN: uninit-value in timespec64_add_safe

Hello, syzbot found the following issue on: HEAD commit: e2bd1b136926 Merge tag 'core-

Mar 5

syzbot, … Edward Adam Davis14

Mar 5

[syzbot] [ext4?] INFO: task hung in filename_rmdir

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

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[syzbot] [ext4?] INFO: task hung in filename_rmdir

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

Mar 5

Mar 5

[syzbot] [btrfs?] kernel BUG in mapping_try_invalidate (2)

Hello, syzbot found the following issue on: HEAD commit: eb71ab2bf722 Merge tag 'bpf-fixes'

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[syzbot] [btrfs?] kernel BUG in mapping_try_invalidate (2)

Hello, syzbot found the following issue on: HEAD commit: eb71ab2bf722 Merge tag 'bpf-fixes'

Mar 5

Mar 5

[syzbot] [f2fs?] KMSAN: uninit-value in f2fs_sanity_check_node_footer

Hello, syzbot found the following issue on: HEAD commit: eb71ab2bf722 Merge tag 'bpf-fixes'

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[syzbot] [f2fs?] KMSAN: uninit-value in f2fs_sanity_check_node_footer

Hello, syzbot found the following issue on: HEAD commit: eb71ab2bf722 Merge tag 'bpf-fixes'

Mar 5

syzbot, Nikola Ivanov3

Mar 5

[syzbot] [net?] WARNING in u32_change (2)

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

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[syzbot] [net?] WARNING in u32_change (2)

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

Mar 5

Mar 5

[syzbot] [sctp?] KCSAN: data-race in sctp_do_sm / sctp_wait_for_connect (4)

Hello, syzbot found the following issue on: HEAD commit: 23b0f90ba871 Merge tag 'sysctl-7.00-rc1

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[syzbot] [sctp?] KCSAN: data-race in sctp_do_sm / sctp_wait_for_connect (4)

Hello, syzbot found the following issue on: HEAD commit: 23b0f90ba871 Merge tag 'sysctl-7.00-rc1

Mar 5

Mar 5

[syzbot] [rds?] KASAN: slab-use-after-free Read in rds_conn_path_drop

Hello, syzbot found the following issue on: HEAD commit: ecc64d2dc9ff Merge tag 'sysctl-7.00-

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[syzbot] [rds?] KASAN: slab-use-after-free Read in rds_conn_path_drop

Hello, syzbot found the following issue on: HEAD commit: ecc64d2dc9ff Merge tag 'sysctl-7.00-

Mar 5

Mar 5

Re: [syzbot] [netfilter?] KASAN: use-after-free Read in nf_hook_entry_head

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

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Re: [syzbot] [netfilter?] KASAN: use-after-free Read in nf_hook_entry_head

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

Mar 5

Mar 5

[syzbot] [netfilter?] KASAN: use-after-free Read in nf_hook_entry_head

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

unread,

[syzbot] [netfilter?] KASAN: use-after-free Read in nf_hook_entry_head

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

Mar 5

Mar 4

[syzbot] [ocfs2?] possible deadlock in ocfs2_extend_dir

Hello, syzbot found the following issue on: HEAD commit: 4d349ee5c778 Merge tag 'arm64-fixes'

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[syzbot] [ocfs2?] possible deadlock in ocfs2_extend_dir

Hello, syzbot found the following issue on: HEAD commit: 4d349ee5c778 Merge tag 'arm64-fixes'

Mar 4

Mar 4

[syzbot] Monthly xfs report (Mar 2026)

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

unread,

[syzbot] Monthly xfs report (Mar 2026)

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

Mar 4

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