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

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syzbot, … Guenter Roeck24

8:50 PM

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

On Tue, Apr 28, 2026 at 12:12:26PM +0800, Edward Adam Davis wrote: > A race condition exists

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

On Tue, Apr 28, 2026 at 12:12:26PM +0800, Edward Adam Davis wrote: > A race condition exists

8:50 PM

8:07 PM

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

Hello, syzbot found the following issue on: HEAD commit: d2c9a99135da Merge tag 'device-id-rework

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

Hello, syzbot found the following issue on: HEAD commit: d2c9a99135da Merge tag 'device-id-rework

8:07 PM

6:05 PM

[syzbot] [ocfs2?] WARNING in poll_select_finish

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

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[syzbot] [ocfs2?] WARNING in poll_select_finish

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

6:05 PM

5:33 PM

[syzbot ci] Re: mm: rework anon_vma and remove anon_vma_chain

syzbot ci has tested the following series [v2] mm: rework anon_vma and remove anon_vma_chain https://

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[syzbot ci] Re: mm: rework anon_vma and remove anon_vma_chain

syzbot ci has tested the following series [v2] mm: rework anon_vma and remove anon_vma_chain https://

5:33 PM

5:32 PM

[syzbot ci] Re: mm: store zswap entries in swap table (Pointer entry)

syzbot ci has tested the following series [v1] mm: store zswap entries in swap table (Pointer entry)

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[syzbot ci] Re: mm: store zswap entries in swap table (Pointer entry)

syzbot ci has tested the following series [v1] mm: store zswap entries in swap table (Pointer entry)

5:32 PM

4:32 PM

[syzbot] Monthly cgroups report (Jul 2026)

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

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[syzbot] Monthly cgroups report (Jul 2026)

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

4:32 PM

4:11 PM

[syzbot] [ocfs2?] kernel BUG in ocfs2_set_new_buffer_uptodate (2)

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

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[syzbot] [ocfs2?] kernel BUG in ocfs2_set_new_buffer_uptodate (2)

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

4:11 PM

syzbot, … Alan Stern8

3:28 PM

[syzbot] [usb?] BUG: corrupted list in usb_hcd_link_urb_to_ep (5)

On Tue, Jul 07, 2026 at 12:17:01PM -0700, syzbot wrote: > Hello, > > syzbot has tested the

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[syzbot] [usb?] BUG: corrupted list in usb_hcd_link_urb_to_ep (5)

On Tue, Jul 07, 2026 at 12:17:01PM -0700, syzbot wrote: > Hello, > > syzbot has tested the

3:28 PM

2:21 PM

Re: [syzbot] [nbd?] INFO: task hung in nbd_queue_rq

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

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Re: [syzbot] [nbd?] INFO: task hung in nbd_queue_rq

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

2:21 PM

Ryusuke Konishi, Viacheslav Dubeyko2

2:16 PM

[PATCH] nilfs2: handle corrupted checkpoint count gracefully during deletion

On Tue, 2026-07-07 at 16:59 +0900, Ryusuke Konishi wrote: > From: Igor Putko <igorpetindev@

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[PATCH] nilfs2: handle corrupted checkpoint count gracefully during deletion

On Tue, 2026-07-07 at 16:59 +0900, Ryusuke Konishi wrote: > From: Igor Putko <igorpetindev@

2:16 PM

10:24 AM

[syzbot] [kernfs?] possible deadlock in kernfs_fop_write_iter (3)

Hello, syzbot found the following issue on: HEAD commit: 87320be9f0d2 Merge tag 'net-7.2-rc2'

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[syzbot] [kernfs?] possible deadlock in kernfs_fop_write_iter (3)

Hello, syzbot found the following issue on: HEAD commit: 87320be9f0d2 Merge tag 'net-7.2-rc2'

10:24 AM

10:20 AM

[syzbot] [wireless?] [usb?] WARNING in __carl9170_tx_process_status

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

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[syzbot] [wireless?] [usb?] WARNING in __carl9170_tx_process_status

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

10:20 AM

7:25 AM

[syzbot] [nbd?] INFO: task hung in nbd_queue_rq

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

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[syzbot] [nbd?] INFO: task hung in nbd_queue_rq

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

7:25 AM

syzbot ci, … Zhou, Yun4

7:01 AM

[syzbot ci] Re: ext4: deferred iput framework for EA inodes

Hi Jan, On 7/3/26 22:02, Jan Kara wrote: > > On Thu 02-07-26 15:57:01, syzbot ci wrote: >

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[syzbot ci] Re: ext4: deferred iput framework for EA inodes

Hi Jan, On 7/3/26 22:02, Jan Kara wrote: > > On Thu 02-07-26 15:57:01, syzbot ci wrote: >

7:01 AM

4:20 AM

[syzbot] [net?] memory leak in vlan_vid_add

Hello, syzbot found the following issue on: HEAD commit: 71dfdfb0209b Merge tag 'vfs-7.2-rc2.

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[syzbot] [net?] memory leak in vlan_vid_add

Hello, syzbot found the following issue on: HEAD commit: 71dfdfb0209b Merge tag 'vfs-7.2-rc2.

4:20 AM

2:32 AM

[syzbot ci] Re: KVM: x86: Destroy the PIC and IOAPIC before destroying vCPUs

syzbot ci has tested the following series [v2] KVM: x86: Destroy the PIC and IOAPIC before destroying

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[syzbot ci] Re: KVM: x86: Destroy the PIC and IOAPIC before destroying vCPUs

syzbot ci has tested the following series [v2] KVM: x86: Destroy the PIC and IOAPIC before destroying

2:32 AM

2:24 AM

[syzbot] [media?] KASAN: slab-use-after-free Read in __vb2_queue_cancel

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

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[syzbot] [media?] KASAN: slab-use-after-free Read in __vb2_queue_cancel

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

2:24 AM

2:07 AM

[syzbot] [netfs?] WARNING in netfs_writepages (3)

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

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[syzbot] [netfs?] WARNING in netfs_writepages (3)

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

2:07 AM

1:25 AM

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

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

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

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

1:25 AM

Jul 6

[syzbot ci] Re: KVM: x86: Document and enforce APIC base memory hole

syzbot ci has tested the following series [v1] KVM: x86: Document and enforce APIC base memory hole

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[syzbot ci] Re: KVM: x86: Document and enforce APIC base memory hole

syzbot ci has tested the following series [v1] KVM: x86: Document and enforce APIC base memory hole

Jul 6

Jul 6

Re: [syzbot] [serial?] memory leak in gsm_activate_mux

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

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Re: [syzbot] [serial?] memory leak in gsm_activate_mux

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

Jul 6

syzbot, … Edward AD28

Jul 6

[syzbot] [serial?] memory leak in gsm_activate_mux

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

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[syzbot] [serial?] memory leak in gsm_activate_mux

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

Jul 6

Jul 6

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

> Hi, > > Please test the following patch. > > #syz test This crash does not have a

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

> Hi, > > Please test the following patch. > > #syz test This crash does not have a

Jul 6

Jul 6

[syzbot] Monthly kvm-x86 report (Jul 2026)

Hello kvm-x86 maintainers/developers, This is a 31-day syzbot report for the kvm-x86 subsystem. All

unread,

[syzbot] Monthly kvm-x86 report (Jul 2026)

Hello kvm-x86 maintainers/developers, This is a 31-day syzbot report for the kvm-x86 subsystem. All

Jul 6

syzbot, … Aleksandr Nogikh5

Jul 6

[syzbot] Monthly virt report (Jun 2026)

On Mon, Jul 6, 2026 at 1:32 PM 'mawupeng' via syzkaller-bugs <syzkaller-bugs@googlegroups.

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[syzbot] Monthly virt report (Jun 2026)

On Mon, Jul 6, 2026 at 1:32 PM 'mawupeng' via syzkaller-bugs <syzkaller-bugs@googlegroups.

Jul 6

Jul 6

[PATCH] jfs: add dmaptree integrity check to prevent array-index-out-of-bounds

From: Slawomir Stepien <s...@poczta.fm> An array-index-out-of-bounds issue occurs in dbJoin()

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[PATCH] jfs: add dmaptree integrity check to prevent array-index-out-of-bounds

From: Slawomir Stepien <s...@poczta.fm> An array-index-out-of-bounds issue occurs in dbJoin()

Jul 6

Jul 6

[syzbot ci] Re: DEPT(DEPendency Tracker)

syzbot ci has tested the following series [v19] DEPT(DEPendency Tracker) https://lore.kernel.org/all/

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[syzbot ci] Re: DEPT(DEPendency Tracker)

syzbot ci has tested the following series [v19] DEPT(DEPendency Tracker) https://lore.kernel.org/all/

Jul 6

Jul 6

Re: MM Test my fix double free

> #syz test This crash does not have a reproducer. I cannot test it. > > diff --git a/

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Re: MM Test my fix double free

> #syz test This crash does not have a reproducer. I cannot test it. > > diff --git a/

Jul 6

Jul 6

[syzbot] [net?] KASAN: slab-use-after-free Read in qfq_reset_qdisc (2)

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

unread,

[syzbot] [net?] KASAN: slab-use-after-free Read in qfq_reset_qdisc (2)

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

Jul 6

Jul 6

[syzbot] [nilfs?] WARNING in nilfs_cpfile_delete_checkpoints

Hello, syzbot found the following issue on: HEAD commit: 71dfdfb0209b Merge tag 'vfs-7.2-rc2.

unread,

[syzbot] [nilfs?] WARNING in nilfs_cpfile_delete_checkpoints

Hello, syzbot found the following issue on: HEAD commit: 71dfdfb0209b Merge tag 'vfs-7.2-rc2.

Jul 6

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