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

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syzbot, Rafael Alejandro Diaz Cruz10

5:45 PM

Re: [syzbot] [jfs] general protection fault in txEnd

Hello, syzbot tried to test the proposed patch but the build/boot failed: failed to apply patch:

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Re: [syzbot] [jfs] general protection fault in txEnd

Hello, syzbot tried to test the proposed patch but the build/boot failed: failed to apply patch:

5:45 PM

1:02 PM

[syzbot] INFO: The task syz-executor:NUM has been waiting for writeback completion for more than NUM seconds.

Hello, syzbot found the following issue on: HEAD commit: 7aaa8047eafd Linux 7.0-rc6 git tree:

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[syzbot] INFO: The task syz-executor:NUM has been waiting for writeback completion for more than NUM seconds.

Hello, syzbot found the following issue on: HEAD commit: 7aaa8047eafd Linux 7.0-rc6 git tree:

1:02 PM

12:05 PM

[BUG] bpf: warn_free_bad_obj in bpf_prog_test_run_skb - slab cross-cache confusion in skb_free_head

Hi, I found a slab cache confusion bug in bpf_prog_test_run_skb() on Linux 7.0.0-rc5, triggered via

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[BUG] bpf: warn_free_bad_obj in bpf_prog_test_run_skb - slab cross-cache confusion in skb_free_head

Hi, I found a slab cache confusion bug in bpf_prog_test_run_skb() on Linux 7.0.0-rc5, triggered via

12:05 PM

8:30 AM

[syzbot] [kernel?] WARNING: refcount bug in bnep_session

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

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[syzbot] [kernel?] WARNING: refcount bug in bnep_session

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

8:30 AM

5:56 AM

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

Hello, syzbot found the following issue on: HEAD commit: 24d479d26b25 Linux 6.19-rc6 git tree:

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

Hello, syzbot found the following issue on: HEAD commit: 24d479d26b25 Linux 6.19-rc6 git tree:

5:56 AM

5:29 AM

[syzbot] [bfs?] WARNING in bfs_get_block

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

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[syzbot] [bfs?] WARNING in bfs_get_block

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

5:29 AM

3:38 AM

[syzbot ci] Re: assorted ->i_count changes + extension of lockless handling

syzbot ci has tested the following series [v3] assorted ->i_count changes + extension of lockless

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[syzbot ci] Re: assorted ->i_count changes + extension of lockless handling

syzbot ci has tested the following series [v3] assorted ->i_count changes + extension of lockless

3:38 AM

12:11 AM

[syzbot] [jfs?] BUG: unable to handle kernel paging request in txAllocPMap

Hello, syzbot found the following issue on: HEAD commit: a3d97d1d3fa6 Merge tag 'ovl-fixes-7.0-

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[syzbot] [jfs?] BUG: unable to handle kernel paging request in txAllocPMap

Hello, syzbot found the following issue on: HEAD commit: a3d97d1d3fa6 Merge tag 'ovl-fixes-7.0-

12:11 AM

Mar 29

Re: [syzbot] [bpf?] KMSAN: uninit-value in bpf_prog_test_run_skb

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

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Re: [syzbot] [bpf?] KMSAN: uninit-value in bpf_prog_test_run_skb

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

Mar 29

Mar 29

Re: [syzbot] [ext4?] KASAN: use-after-free Read in xattr_find_entry (2)

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: use-after-free Read in xattr_find_entry (2)

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

Mar 29

syzbot, … Soham Metha19

Mar 29

[syzbot] [bpf?] KMSAN: uninit-value in bpf_prog_test_run_skb

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

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[syzbot] [bpf?] KMSAN: uninit-value in bpf_prog_test_run_skb

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

Mar 29

Mar 29

[syzbot] [ext4?] KASAN: use-after-free Read in xattr_find_entry (2)

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

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[syzbot] [ext4?] KASAN: use-after-free Read in xattr_find_entry (2)

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

Mar 29

Arnaud Lecomte, … Guenter Roeck78

Mar 29

[PATCH v2] bpf: fix stackmap overflow check in __bpf_get_stackid()

Hi, On Sat, Oct 25, 2025 at 07:29:41PM +0000, Arnaud Lecomte wrote: > Syzkaller reported a KASAN

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[PATCH v2] bpf: fix stackmap overflow check in __bpf_get_stackid()

Hi, On Sat, Oct 25, 2025 at 07:29:41PM +0000, Arnaud Lecomte wrote: > Syzkaller reported a KASAN

Mar 29

Mar 29

[syzbot] [gfs2?] INFO: task hung in gfs2_clear_rgrpd

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

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[syzbot] [gfs2?] INFO: task hung in gfs2_clear_rgrpd

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

Mar 29

Mar 29

[syzbot] [btrfs?] kernel BUG in extent_writepage_io

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

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[syzbot] [btrfs?] kernel BUG in extent_writepage_io

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

Mar 29

Mar 29

Re: [syzbot] [hfs?] kernel BUG in hfs_write_inode

Hello, syzbot tried to test the proposed patch but the build/boot failed: unknown enabled syscall:

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Re: [syzbot] [hfs?] kernel BUG in hfs_write_inode

Hello, syzbot tried to test the proposed patch but the build/boot failed: unknown enabled syscall:

Mar 29

syzbot, … George Anthony Vernon14

Mar 29

[syzbot] kernel BUG in hfs_write_inode

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

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[syzbot] kernel BUG in hfs_write_inode

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

Mar 29

Mar 29

[syzbot] [wireless?] WARNING in cfg80211_chandef_dfs_required (2)

Hello, syzbot found the following issue on: HEAD commit: b1c803d5c816 net: airoha: Rework the code

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[syzbot] [wireless?] WARNING in cfg80211_chandef_dfs_required (2)

Hello, syzbot found the following issue on: HEAD commit: b1c803d5c816 net: airoha: Rework the code

Mar 29

Mar 29

[syzbot] [xfs?] possible deadlock in xfs_trans_alloc

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

unread,

[syzbot] [xfs?] possible deadlock in xfs_trans_alloc

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

Mar 29

Mar 28

[syzbot] [bluetooth?] KASAN: null-ptr-deref Write in l2cap_sock_suspend_cb (3)

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

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[syzbot] [bluetooth?] KASAN: null-ptr-deref Write in l2cap_sock_suspend_cb (3)

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

Mar 28

syzbot, … Hillf Danton10

Mar 28

[syzbot] [fs?] general protection fault in __umount_mnt

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

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[syzbot] [fs?] general protection fault in __umount_mnt

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

Mar 28

Mar 28

[syzbot] [nilfs?] WARNING in nilfs_rmdir (2)

Hello, syzbot found the following issue on: HEAD commit: e3c33bc767b5 Merge tag 'mm-hotfixes-

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[syzbot] [nilfs?] WARNING in nilfs_rmdir (2)

Hello, syzbot found the following issue on: HEAD commit: e3c33bc767b5 Merge tag 'mm-hotfixes-

Mar 28

syzbot ci, Andrew Morton2

Mar 28

[syzbot ci] Re: mm/page_owner: warn when stack trace depth hits PAGE_OWNER_STACK_DEPTH limit

On Sat, 28 Mar 2026 10:28:08 -0700 syzbot ci <syzbot+ci9dc...@syzkaller.appspotmail.com

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[syzbot ci] Re: mm/page_owner: warn when stack trace depth hits PAGE_OWNER_STACK_DEPTH limit

On Sat, 28 Mar 2026 10:28:08 -0700 syzbot ci <syzbot+ci9dc...@syzkaller.appspotmail.com

Mar 28

Mar 28

Re: [syzbot] [f2fs?] kernel BUG in clear_inode (5)

Hello, syzbot tried to test the proposed patch but the build/boot failed: unknown enabled syscall:

unread,

Re: [syzbot] [f2fs?] kernel BUG in clear_inode (5)

Hello, syzbot tried to test the proposed patch but the build/boot failed: unknown enabled syscall:

Mar 28

Mar 28

[syzbot] [f2fs?] kernel BUG in clear_inode (5)

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

unread,

[syzbot] [f2fs?] kernel BUG in clear_inode (5)

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

Mar 28

Mar 28

[syzbot] [mm?] [cgroups?] WARNING in page_counter_uncharge (2)

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

unread,

[syzbot] [mm?] [cgroups?] WARNING in page_counter_uncharge (2)

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

Mar 28

Mar 28

[syzbot] [btrfs?] WARNING in btree_csum_one_bio

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

unread,

[syzbot] [btrfs?] WARNING in btree_csum_one_bio

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

Mar 28

Mar 27

[syzbot] [gfs2?] INFO: task kworker/NUM:0H:NUM blocked in I/O wait for more than NUM seconds.

Hello, syzbot found the following issue on: HEAD commit: e77a5a5cfe43 Add linux-next specific files

unread,

[syzbot] [gfs2?] INFO: task kworker/NUM:0H:NUM blocked in I/O wait for more than NUM seconds.

Hello, syzbot found the following issue on: HEAD commit: e77a5a5cfe43 Add linux-next specific files

Mar 27

Mar 27

[syzbot] [gfs2?] WARNING in gfs2_put_super (2)

Hello, syzbot found the following issue on: HEAD commit: 66ba480978ce Add linux-next specific files

unread,

[syzbot] [gfs2?] WARNING in gfs2_put_super (2)

Hello, syzbot found the following issue on: HEAD commit: 66ba480978ce Add linux-next specific files

Mar 27

Mar 27

[syzbot] Monthly rdma report (Mar 2026)

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

unread,

[syzbot] Monthly rdma report (Mar 2026)

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

Mar 27

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