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

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syzbot, kernel test robot10

5:21 AM

[syzbot] [ext4?] KASAN: use-after-free Read in ext4_ext_insert_extent

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

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[syzbot] [ext4?] KASAN: use-after-free Read in ext4_ext_insert_extent

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

5:21 AM

4:24 AM

[syzbot] [bluetooth?] INFO: trying to register non-static key in bt_accept_unlink

Hello, syzbot found the following issue on: HEAD commit: 2d3090a8aeb5 Merge tag 'v7.1-p5' of

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[syzbot] [bluetooth?] INFO: trying to register non-static key in bt_accept_unlink

Hello, syzbot found the following issue on: HEAD commit: 2d3090a8aeb5 Merge tag 'v7.1-p5' of

4:24 AM

12:22 AM

[syzbot] [net?] possible deadlock in udp_sendmsg (2)

Hello, syzbot found the following issue on: HEAD commit: 8b2feced65cd Merge branch 'net-dsa-

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[syzbot] [net?] possible deadlock in udp_sendmsg (2)

Hello, syzbot found the following issue on: HEAD commit: 8b2feced65cd Merge branch 'net-dsa-

12:22 AM

Jun 12

[syzbot] [fs?] memory leak in path_openat (3)

Hello, syzbot found the following issue on: HEAD commit: 2b414a95b8f7 Merge tag 's390-7.1-5'

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[syzbot] [fs?] memory leak in path_openat (3)

Hello, syzbot found the following issue on: HEAD commit: 2b414a95b8f7 Merge tag 's390-7.1-5'

Jun 12

Jun 12

[syzbot ci] Re: tcp: opportunistic loopback splice for BPF-paired sockets

syzbot ci has tested the following series [v1] tcp: opportunistic loopback splice for BPF-paired

unread,

[syzbot ci] Re: tcp: opportunistic loopback splice for BPF-paired sockets

syzbot ci has tested the following series [v1] tcp: opportunistic loopback splice for BPF-paired

Jun 12

Jun 12

[syzbot] [mm?] KASAN: invalid-free in rcu_free_sheaf

Hello, syzbot found the following issue on: HEAD commit: 0ce346bf2f68 Merge branch 'net-shaper-

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[syzbot] [mm?] KASAN: invalid-free in rcu_free_sheaf

Hello, syzbot found the following issue on: HEAD commit: 0ce346bf2f68 Merge branch 'net-shaper-

Jun 12

syzbot, Peter Zijlstra2

Jun 12

[syzbot] [kernel?] WARNING in update_curr_idle

On Fri, Jun 12, 2026 at 11:10:23AM -0700, syzbot wrote: > Hello, > > syzbot found the

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[syzbot] [kernel?] WARNING in update_curr_idle

On Fri, Jun 12, 2026 at 11:10:23AM -0700, syzbot wrote: > Hello, > > syzbot found the

Jun 12

syzbot, Peter Zijlstra2

Jun 12

[syzbot] [kernel?] general protection fault in __schedule (3)

On Fri, Jun 12, 2026 at 11:10:23AM -0700, syzbot wrote: > Hello, > > syzbot found the

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[syzbot] [kernel?] general protection fault in __schedule (3)

On Fri, Jun 12, 2026 at 11:10:23AM -0700, syzbot wrote: > Hello, > > syzbot found the

Jun 12

Jun 12

[syzbot] [integrity?] [lsm?] BUG: sleeping function called from invalid context in page_cache_ra_unbounded

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

unread,

[syzbot] [integrity?] [lsm?] BUG: sleeping function called from invalid context in page_cache_ra_unbounded

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

Jun 12

Jun 12

[syzbot] [net?] general protection fault in skb_segment (5)

Hello, syzbot found the following issue on: HEAD commit: e7aa57247700 Merge tag 'spi-fix-v6.19-

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[syzbot] [net?] general protection fault in skb_segment (5)

Hello, syzbot found the following issue on: HEAD commit: e7aa57247700 Merge tag 'spi-fix-v6.19-

Jun 12

Jun 12

[syzbot] [net?] KASAN: slab-use-after-free Read in ipvlan_hard_header (4)

Hello, syzbot found the following issue on: HEAD commit: bd3a4795d574 selftests: tls: add test for

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[syzbot] [net?] KASAN: slab-use-after-free Read in ipvlan_hard_header (4)

Hello, syzbot found the following issue on: HEAD commit: bd3a4795d574 selftests: tls: add test for

Jun 12

Jun 12

[PATCH] ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write

From: Aleksandr Nogikh <nog...@google.com> A circular locking dependency involves

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[PATCH] ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write

From: Aleksandr Nogikh <nog...@google.com> A circular locking dependency involves

Jun 12

wuyankun, Tetsuo Handa4

Jun 12

[PATCH] wifi: ath6kl: fix invalid workqueue flags in ath6kl_usb_create()

ath6kl_usb_create() currently creates ath6kl_wq with flags set to 0: alloc_workqueue("ath6kl_wq

unread,

[PATCH] wifi: ath6kl: fix invalid workqueue flags in ath6kl_usb_create()

ath6kl_usb_create() currently creates ath6kl_wq with flags set to 0: alloc_workqueue("ath6kl_wq

Jun 12

Jun 12

[syzbot] [net?] KCSAN: data-race in xfrm_lookup_with_ifid / xfrm_policy_delete

Hello, syzbot found the following issue on: HEAD commit: 2b414a95b8f7 Merge tag 's390-7.1-5'

unread,

[syzbot] [net?] KCSAN: data-race in xfrm_lookup_with_ifid / xfrm_policy_delete

Hello, syzbot found the following issue on: HEAD commit: 2b414a95b8f7 Merge tag 's390-7.1-5'

Jun 12

Jun 11

[syzbot] [cgroups?] [mm?] WARNING in hrtick_start_fair

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

unread,

[syzbot] [cgroups?] [mm?] WARNING in hrtick_start_fair

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

Jun 11

syzbot, Lizhi Xu21

Jun 11

[syzbot] [ocfs2?] KASAN: use-after-free Read in __ocfs2_flush_truncate_log

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

unread,

[syzbot] [ocfs2?] KASAN: use-after-free Read in __ocfs2_flush_truncate_log

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

Jun 11

Jun 11

[syzbot ci] Re: mm: Unconditional per-VMA locks and cleanups

syzbot ci has tested the following series [v2] mm: Unconditional per-VMA locks and cleanups https://

unread,

[syzbot ci] Re: mm: Unconditional per-VMA locks and cleanups

syzbot ci has tested the following series [v2] mm: Unconditional per-VMA locks and cleanups https://

Jun 11

Jun 11

[syzbot ci] Re: mm: split the file's i_mmap tree for NUMA

syzbot ci has tested the following series [v2] mm: split the file's i_mmap tree for NUMA https://

unread,

[syzbot ci] Re: mm: split the file's i_mmap tree for NUMA

syzbot ci has tested the following series [v2] mm: split the file's i_mmap tree for NUMA https://

Jun 11

Jun 11

[syzbot] [ext4?] kernel BUG in ext4_ext_map_blocks

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

unread,

[syzbot] [ext4?] kernel BUG in ext4_ext_map_blocks

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

Jun 11

syzbot ci, Sean Christopherson2

Jun 11

[syzbot ci] Re: KVM: x86: Unconditionally recompute CR8 intercept on PPR update

On Thu, Jun 11, 2026, syzbot ci wrote: > syzbot ci has tested the following series > > [v2]

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[syzbot ci] Re: KVM: x86: Unconditionally recompute CR8 intercept on PPR update

On Thu, Jun 11, 2026, syzbot ci wrote: > syzbot ci has tested the following series > > [v2]

Jun 11

syzbot ci, … syzbot ci5

Jun 11

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

syzbot ci has tested the suggested fix patch on top of the following series: [v3] Implement a new

unread,

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

syzbot ci has tested the suggested fix patch on top of the following series: [v3] Implement a new

Jun 11

xiaoblac, Toke Høiland-Jørgensen2

Jun 11

[PATCH] wifi: ath9k: hif_usb: don't dereference hif_dev after re-arming firmware request

xiaoblac <teel...@gmail.com> writes: > From: Cheng Yongkang <teel...@gmail.com> >

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[PATCH] wifi: ath9k: hif_usb: don't dereference hif_dev after re-arming firmware request

xiaoblac <teel...@gmail.com> writes: > From: Cheng Yongkang <teel...@gmail.com> >

Jun 11

syzbot, … Jay Vadayath8

Jun 11

[syzbot] [mm?] KCSAN: data-race in mas_wr_store_entry / mtree_range_walk (2)

Hello, I am a security researcher and was able to independently reproduce this data race on an x86-64

unread,

[syzbot] [mm?] KCSAN: data-race in mas_wr_store_entry / mtree_range_walk (2)

Hello, I am a security researcher and was able to independently reproduce this data race on an x86-64

Jun 11

Jun 11

[syzbot] Monthly xfs report (Jun 2026)

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

unread,

[syzbot] Monthly xfs report (Jun 2026)

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

Jun 11

Jun 11

[syzbot] [mm?] kernel BUG in z3fold_page_migrate

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

unread,

[syzbot] [mm?] kernel BUG in z3fold_page_migrate

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

Jun 11

Jun 11

[syzbot ci] Re: Data in direntry (dirdata) feature

syzbot ci has tested the following series [v2] Data in direntry (dirdata) feature https://lore.kernel

unread,

[syzbot ci] Re: Data in direntry (dirdata) feature

syzbot ci has tested the following series [v2] Data in direntry (dirdata) feature https://lore.kernel

Jun 11

Jun 11

[syzbot] [net?] WARNING in call_rcu (3)

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

unread,

[syzbot] [net?] WARNING in call_rcu (3)

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

Jun 11

syzbot, Edward Adam Davis4

Jun 11

[syzbot] [bluetooth?] KASAN: slab-use-after-free Write in hci_conn_drop (3)

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

unread,

[syzbot] [bluetooth?] KASAN: slab-use-after-free Write in hci_conn_drop (3)

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

Jun 11

Jun 11

[syzbot ci] Re: mm/huge_memory: do not add dropped split tail folios to LRU

syzbot ci has tested the following series [v1] mm/huge_memory: do not add dropped split tail folios

unread,

[syzbot ci] Re: mm/huge_memory: do not add dropped split tail folios to LRU

syzbot ci has tested the following series [v1] mm/huge_memory: do not add dropped split tail folios

Jun 11

syzbot, Pei Xiao2

Jun 10

[syzbot] [usb?] [input?] KMSAN: uninit-value in steam_register

The reply buffer in steam_get_serial() is allocated on the stack without initialization. In cases

unread,

[syzbot] [usb?] [input?] KMSAN: uninit-value in steam_register

The reply buffer in steam_get_serial() is allocated on the stack without initialization. In cases

Jun 10

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