kernel panic: kernel: panic_on_warn set ... (3)

Status: upstream: reported C repro on 2026/08/09 00:09
Subsystems: bluetooth
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+fe5ea83cdd7fc263f452@syzkaller.appspotmail.com
First crash: 98d, last: 1d06h
Cause bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision
00ec975b assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ✅ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ kernel panic: kernel: panic_on_warn set ... (3) 2026/08/09 19:17 2026/08/09 19:17 2026/08/09 19:49 5d63f80b
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly bluetooth report (Nov 2026) 0 (1) 2026/11/06 04:33
[syzbot] Monthly bluetooth report (Oct 2026) 0 (1) 2026/10/05 20:33
[syzbot] [nfc?] kernel panic: kernel: panic_on_warn set ... (3) 1 (4) 2026/08/31 02:02
▶ ▼ Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 kernel panic: kernel: panic_on_warn set ... 2 30 94d 97d 0/2 auto-obsoleted due to no activity on 2026/10/16 16:15
upstream kernel panic: kernel: panic_on_warn set ... kernel 2 1 683d 679d 0/29 auto-obsoleted due to no activity on 2025/03/27 03:23
linux-5.15 kernel panic: kernel: panic_on_warn set ... (2) 2 19 1d01h 126d 0/3 upstream: reported on 2026/07/07 08:59
android-5-10 kernel panic: kernel: panic_on_warn set ... 2 1 98d 98d 0/2 auto-obsoleted due to no activity on 2026/11/02 14:27
linux-5.15 kernel panic: kernel: panic_on_warn set ... 2 1 336d 336d 0/3 auto-obsoleted due to no activity on 2026/03/19 11:08
linux-6.1 kernel panic: kernel: panic_on_warn set ... 2 10 57d 97d 0/3 upstream: reported on 2026/08/04 21:46
upstream kernel panic: kernel: panic_on_warn set ... (2) net 2 64 356d 393d 0/29 auto-obsoleted due to no activity on 2026/01/19 08:34
android-6-1 kernel panic: kernel: panic_on_warn set ... 2 1 98d 98d 0/2 auto-obsoleted due to no activity on 2026/11/02 15:34
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2026/08/30 22:58 2h47m hdanton@sina.com patch upstream report job log log

Sample crash report:
 <TASK>
 process_one_work kernel/workqueue.c:3387 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3470
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3551
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 5905 Comm: kworker/u9:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: hci5 hci_conn_timeout
Call Trace:
 <TASK>
 vpanic+0x56d/0xa60 kernel/panic.c:651
 panic+0xc5/0xd0 kernel/panic.c:788
 check_panic_on_warn kernel/panic.c:525 [inline]
 __warn+0x315/0x4c0 kernel/panic.c:1104
 __report_bug+0x276/0x570 lib/bug.c:254
 report_bug+0x16b/0x220 lib/bug.c:286
 handle_bug+0x9c/0x200 arch/x86/kernel/traps.c:436
 exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:490
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:593
RIP: 0010:hci_conn_timeout+0xff/0x2c0 net/bluetooth/hci_conn.c:641
Code: 48 89 df e8 e3 f5 09 00 eb 07 e8 ac 50 f1 f6 b0 13 0f b6 f0 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 d7 9f fe ff e8 92 50 f1 f6 90 <0f> 0b 90 eb 8c 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 31 ff ff ff
RSP: 0018:ffffc90003097ab0 EFLAGS: 00010293
RAX: ffffffff8ad6630e RBX: ffff888079288000 RCX: ffff88802f728000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: 00000000ffffffff R08: ffff888079288013 R09: 1ffff1100f251002
R10: dffffc0000000000 R11: ffffed100f251003 R12: dffffc0000000000
R13: ffffffff818f95da R14: ffff888079288a50 R15: ffff888079288010
 process_one_work kernel/workqueue.c:3387 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3470
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3551
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (165):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/30 17:37 upstream 08dbfad3f504 2f52988a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce kernel panic: kernel: panic_on_warn set ...
2026/11/05 11:42 upstream 05441d697f7f 2ee8459f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel panic: kernel: panic_on_warn set ...
2026/11/05 04:08 upstream 05441d697f7f 73438ed0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel panic: kernel: panic_on_warn set ...
2026/11/04 23:09 upstream 05441d697f7f 2ee8459f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root kernel panic: kernel: panic_on_warn set ...
2026/11/02 19:38 upstream 6628e7d4c6b2 6969b601 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel panic: kernel: panic_on_warn set ...
2026/11/01 20:26 upstream cbbddb6b08cc 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root kernel panic: kernel: panic_on_warn set ...
2026/11/01 14:25 upstream e9954f3fbddd 25a0ae84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel panic: kernel: panic_on_warn set ...
2026/10/31 15:15 upstream 36aad21d50d1 2041d3f8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root kernel panic: kernel: panic_on_warn set ...
2026/08/07 13:03 upstream f9a2394a2348 e4ef95d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel panic: kernel: panic_on_warn set ...
2026/08/06 17:58 upstream 0d8395707651 c38879ea .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel panic: kernel: panic_on_warn set ...
2026/08/04 23:39 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel panic: kernel: panic_on_warn set ...
2026/10/23 05:03 upstream 3ac032ef6ca8 d566bfda .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/22 17:26 upstream 7be4bc52fd9e 3875c4e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/20 02:23 upstream c03c1a14507d 21286ae2 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/19 19:16 upstream c03c1a14507d 440f8011 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/17 23:43 upstream 58161ead29e5 432c0077 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/15 06:01 upstream 0fcb05b72344 8fb0ae89 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/14 19:46 upstream 4056b3c9d3c9 1a71827b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/14 13:58 upstream 4056b3c9d3c9 1a71827b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/09 04:36 upstream 6c377d19d4a5 b2734a59 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/06 19:44 upstream 69f80fef3153 f7710056 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/10/05 20:46 upstream 67f0943b394d 1995e6c7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream kernel panic: kernel: panic_on_warn set ...
2026/11/09 09:05 upstream 8a65162514fb 5cecaf1f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/11/09 02:46 upstream 8a65162514fb 5cecaf1f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/11/06 20:34 upstream f66469d9905b 5cecaf1f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/11/05 12:49 upstream 05441d697f7f 2ee8459f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/11/04 19:56 upstream 05441d697f7f 73438ed0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/11/03 14:26 upstream 6628e7d4c6b2 e2d35131 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/11/03 09:02 upstream 6628e7d4c6b2 0a94d799 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/31 02:15 upstream abf8c33470f7 2041d3f8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/30 09:24 upstream 4dd16e31135e b498adee .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/30 04:51 upstream 4dd16e31135e b498adee .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/28 13:25 upstream 65ba8f34ec88 858db2ec .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/27 19:46 upstream 62c457528529 96923c60 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/26 00:56 upstream 21a7f44fd076 1d9ca40b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/24 21:36 upstream 5b0764a53235 1d9ca40b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/24 05:40 upstream 4da9dedf3fc5 1d9ca40b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/23 03:58 upstream 3ac032ef6ca8 d566bfda .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/22 03:01 upstream 4df4d2a577db 4ba27f85 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/22 00:51 upstream 4df4d2a577db 4ba27f85 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/19 10:01 upstream c03c1a14507d 432c0077 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/18 23:51 upstream a0ff06b3a7bd 432c0077 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/15 20:19 upstream 045958acaa75 3f2522c6 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/14 18:07 upstream 4056b3c9d3c9 1a71827b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/14 02:05 upstream ca3e345926b0 7321cd29 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/11 19:13 upstream b88c841d1164 4f92358f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/10 07:14 upstream 3857c2fe5449 4f92358f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/10 05:45 upstream 3857c2fe5449 4f92358f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/09 20:02 upstream af32da41b032 549ef7e3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/09 18:38 upstream af32da41b032 549ef7e3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/09 02:46 upstream 6c377d19d4a5 b2734a59 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/08 16:37 upstream 0c2669a9f4a1 9d4697fa .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/08 09:04 upstream 7b63ef2d55f2 4f6a9fcf .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/06 17:37 upstream 69f80fef3153 f7710056 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/10/06 02:34 upstream 67f0943b394d f7710056 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: kernel: panic_on_warn set ...
2026/09/16 02:59 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 600334ef2f29 2daa4bb5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb kernel panic: kernel: panic_on_warn set ...
* Struck through repros no longer work on HEAD.