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

Nobody is reading this list per se. See this article on reporting kernel bugs.

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Jun 29

[syzbot] [gfs2?] general protection fault in _find_first_zero_bit

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

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[syzbot] [gfs2?] general protection fault in _find_first_zero_bit

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

Jun 29

Jun 29

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

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

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

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

Jun 29

Jun 29

[syzbot] [mm?] [usb?] [input?] INFO: rcu detected stall in sys_epoll_wait (9)

Hello, syzbot found the following issue on: HEAD commit: 5a66900afbd6 Merge tag 'drm-fixes-2026-

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[syzbot] [mm?] [usb?] [input?] INFO: rcu detected stall in sys_epoll_wait (9)

Hello, syzbot found the following issue on: HEAD commit: 5a66900afbd6 Merge tag 'drm-fixes-2026-

Jun 29

Jun 29

[syzbot] [ntfs3?] possible deadlock in ntfs_readdir

Hello, syzbot found the following issue on: HEAD commit: 8b69c0475871 Merge tag 'input-for-v7.2-

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[syzbot] [ntfs3?] possible deadlock in ntfs_readdir

Hello, syzbot found the following issue on: HEAD commit: 8b69c0475871 Merge tag 'input-for-v7.2-

Jun 29

Jun 29

[syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_iomap_begin (2)

Hello, syzbot found the following issue on: HEAD commit: 962528fef902 Merge tag 'gpio-fixes-for-

unread,

[syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_iomap_begin (2)

Hello, syzbot found the following issue on: HEAD commit: 962528fef902 Merge tag 'gpio-fixes-for-

Jun 29

Jun 29

[syzbot] [block?] WARNING in ublk_ch_batch_io_uring_cmd

Hello, syzbot found the following issue on: HEAD commit: ab9de95c9cf9 Merge tag 'rust-7.2-2'

unread,

[syzbot] [block?] WARNING in ublk_ch_batch_io_uring_cmd

Hello, syzbot found the following issue on: HEAD commit: ab9de95c9cf9 Merge tag 'rust-7.2-2'

Jun 29

syzbot, … Andrew Lunn8

Jun 29

[syzbot] [wireguard?] KCSAN: data-race in wg_socket_send_skb_to_peer / wg_socket_send_skb_to_peer (9)

> When looking around drivers/net, I found a few u64_stats uses without > per-cpu. I will do

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[syzbot] [wireguard?] KCSAN: data-race in wg_socket_send_skb_to_peer / wg_socket_send_skb_to_peer (9)

> When looking around drivers/net, I found a few u64_stats uses without > per-cpu. I will do

Jun 29

syzbot, Hojun Choi2

Jun 29

[syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_disconn_ind (3)

l2cap_disconn_ind() runs from the hci_conn_timeout() worker without hci_dev_lock, and reads conn->

unread,

[syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_disconn_ind (3)

l2cap_disconn_ind() runs from the hci_conn_timeout() worker without hci_dev_lock, and reads conn->

Jun 29

Jun 29

[syzbot] [kvm-x86?] KASAN: use-after-free Read in kvm_setup_guest_pvclock

Hello, syzbot found the following issue on: HEAD commit: dc59e4fea9d8 Linux 7.2-rc1 git tree:

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[syzbot] [kvm-x86?] KASAN: use-after-free Read in kvm_setup_guest_pvclock

Hello, syzbot found the following issue on: HEAD commit: dc59e4fea9d8 Linux 7.2-rc1 git tree:

Jun 29

Jun 29

[syzbot] Monthly rdma report (Jun 2026)

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

unread,

[syzbot] Monthly rdma report (Jun 2026)

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

Jun 29

Jun 29

[syzbot] [wpan?] general protection fault in ieee802154_release_queue

Hello, syzbot found the following issue on: HEAD commit: b85966adbf5d Merge tag 'net-next-7.2

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[syzbot] [wpan?] general protection fault in ieee802154_release_queue

Hello, syzbot found the following issue on: HEAD commit: b85966adbf5d Merge tag 'net-next-7.2

Jun 29

syzbot, … Jiri Kosina23

Jun 29

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

On Tue, 19 May 2026, Philipp Weber wrote: > A driver's probe calls hid_device_io_start() to

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

On Tue, 19 May 2026, Philipp Weber wrote: > A driver's probe calls hid_device_io_start() to

Jun 29

syzbot ci, … Jeremy Bingham10

Jun 29

[syzbot ci] Re: minix: convert to iomap and add direct I/O

Apparently I did this wrong the first time. I misunderstood and sent one patch covering all the

unread,

[syzbot ci] Re: minix: convert to iomap and add direct I/O

Apparently I did this wrong the first time. I misunderstood and sent one patch covering all the

Jun 29

Jun 29

[syzbot] [ocfs2?] kernel BUG in ocfs2_xattr_value_truncate (2)

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

unread,

[syzbot] [ocfs2?] kernel BUG in ocfs2_xattr_value_truncate (2)

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

Jun 29

Jun 28

[syzbot] [ocfs2?] WARNING: locking bug in ocfs2_inode_lock_full_nested (3)

Hello, syzbot found the following issue on: HEAD commit: ab9de95c9cf9 Merge tag 'rust-7.2-2'

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[syzbot] [ocfs2?] WARNING: locking bug in ocfs2_inode_lock_full_nested (3)

Hello, syzbot found the following issue on: HEAD commit: ab9de95c9cf9 Merge tag 'rust-7.2-2'

Jun 28

Jun 28

[syzbot] [fs?] [mm?] INFO: rcu detected stall in dentry_kill

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

unread,

[syzbot] [fs?] [mm?] INFO: rcu detected stall in dentry_kill

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

Jun 28

Jianhui Zhou, Andrew Morton2

Jun 28

[PATCH] mm/userfaultfd: clear uffd-wp PTE state when re-registering without WP

On Mon, 1 Jun 2026 16:26:09 +0800 Jianhui Zhou <jianhu...@gmail.com> wrote: >

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[PATCH] mm/userfaultfd: clear uffd-wp PTE state when re-registering without WP

On Mon, 1 Jun 2026 16:26:09 +0800 Jianhui Zhou <jianhu...@gmail.com> wrote: >

Jun 28

Jun 28

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

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

unread,

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

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

Jun 28

syzbot, … Lorenzo Stoakes (Oracle)11

Jun 27

[syzbot] [mm?] general protection fault in zap_huge_pmd

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

unread,

[syzbot] [mm?] general protection fault in zap_huge_pmd

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

Jun 27

syzbot, Jakub Kicinski2

Jun 27

[PATCH] netdevsim: remove debugfs files before freeing net_device

On Sat, 27 Jun 2026 11:20:11 +0000 (UTC) syzbot wrote: > A KASAN slab-use-after-free was detected

unread,

[PATCH] netdevsim: remove debugfs files before freeing net_device

On Sat, 27 Jun 2026 11:20:11 +0000 (UTC) syzbot wrote: > A KASAN slab-use-after-free was detected

Jun 27

Jun 27

[syzbot ci] Re: bpf: Introduce static-defined tracing probe for BPF

syzbot ci has tested the following series [v1] bpf: Introduce static-defined tracing probe for BPF

unread,

[syzbot ci] Re: bpf: Introduce static-defined tracing probe for BPF

syzbot ci has tested the following series [v1] bpf: Introduce static-defined tracing probe for BPF

Jun 27

Jun 27

[syzbot] [bpf?] BUG: soft lockup in hsr_announce (3)

syzbot has found a reproducer for the following issue on: HEAD commit: 5a66900afbd6 Merge tag '

unread,

[syzbot] [bpf?] BUG: soft lockup in hsr_announce (3)

syzbot has found a reproducer for the following issue on: HEAD commit: 5a66900afbd6 Merge tag '

Jun 27

Jun 27

[syzbot] [bpf?] INFO: rcu detected stall in task_work_add

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

unread,

[syzbot] [bpf?] INFO: rcu detected stall in task_work_add

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

Jun 27

Jun 27

[syzbot] [ext4?] kernel BUG in ext4_mb_normalize_request (2)

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_mb_normalize_request (2)

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

Jun 27

Jun 27

[syzbot] [fs?] KASAN: slab-use-after-free Read in debugfs_u32_get (2)

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

unread,

[syzbot] [fs?] KASAN: slab-use-after-free Read in debugfs_u32_get (2)

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

Jun 27

syzbot, Tetsuo Handa4

Jun 27

[syzbot] [tomoyo?] KMSAN: uninit-value in tomoyo_path_chown (3)

On 2026/06/27 14:44, syzbot wrote: >> #syz set subsystems: unclassified >> >> #syz

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[syzbot] [tomoyo?] KMSAN: uninit-value in tomoyo_path_chown (3)

On 2026/06/27 14:44, syzbot wrote: >> #syz set subsystems: unclassified >> >> #syz

Jun 27

syzbot ci, Sean Christopherson2

Jun 26

[syzbot ci] Re: KVM: x86/hyperv: Fix racy usage of vcpu->arch.hyperv

On Fri, Jun 26, 2026, syzbot ci wrote: > ------------[ cut here ]------------ > debug_locks

unread,

[syzbot ci] Re: KVM: x86/hyperv: Fix racy usage of vcpu->arch.hyperv

On Fri, Jun 26, 2026, syzbot ci wrote: > ------------[ cut here ]------------ > debug_locks

Jun 26

syzbot, … Hillf Danton13

Jun 26

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

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

unread,

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

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

Jun 26

Jun 26

[syzbot] [net?] [virt?] BUG: soft lockup in perf_event_open (2)

syzbot has found a reproducer for the following issue on: HEAD commit: 4edcdefd4083 Merge tag '

unread,

[syzbot] [net?] [virt?] BUG: soft lockup in perf_event_open (2)

syzbot has found a reproducer for the following issue on: HEAD commit: 4edcdefd4083 Merge tag '

Jun 26

Jun 26

[syzbot] [cgroups?] INFO: task hung in cgroup1_get_tree

Hello, syzbot found the following issue on: HEAD commit: ab9de95c9cf9 Merge tag 'rust-7.2-2'

unread,

[syzbot] [cgroups?] INFO: task hung in cgroup1_get_tree

Hello, syzbot found the following issue on: HEAD commit: ab9de95c9cf9 Merge tag 'rust-7.2-2'

Jun 26

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