syzbot
WARNING in do_exit
Status:
upstream: reported on 2026/05/02 12:20
Subsystems:
kernel
Labels:
prio:low
[Documentation on labels]
Reported-by: syzbot+8fdf0d8e10bdde1c2e88@syzkaller.appspotmail.com
First crash: 99d, last: 43d
Sample crash report:
ACPI: PM: Preparing to enter system sleep state S5
kvm: exiting hardware virtualization
reboot: Power down
------------[ cut here ]------------
irqs_disabled()
WARNING: kernel/exit.c:930 at do_exit+0x1cf7/0x2ae0 kernel/exit.c:930, CPU#0: init/6193
Modules linked in:
CPU: 0 UID: 0 PID: 6193 Comm: init Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:do_exit+0x1cf7/0x2ae0 kernel/exit.c:930
Code: 69 0a 00 00 8b 83 c8 16 00 00 65 01 05 8e 9b 4c 12 e9 c6 fa ff ff e8 28 9a 41 00 90 0f 0b 90 e9 d6 e3 ff ff e8 1a 9a 41 00 90 <0f> 0b 90 e9 93 e3 ff ff e8 0c 9a 41 00 31 c0 b9 04 00 00 00 4c 89
RSP: 0018:ffffc9000583fc68 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffff888030a20000 RCX: ffffffff81c724f9
RDX: ffff888030a20000 RSI: ffffffff81c74166 RDI: ffff888030a20000
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff8e695c00 R14: 00000000fee1dead R15: dffffc0000000000
FS: 00007f35e156bc80(0000) GS:ffff8881242f6000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000003ff000 CR3: 00000000361de000 CR4: 00000000003506f0
Call Trace:
<TASK>
__do_sys_reboot+0x36e/0x400 kernel/reboot.c:784
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f35e17328d3
Code: ff 45 31 c9 6a 13 45 31 c0 31 c9 e8 67 8b f8 ff 48 83 c4 18 c3 66 90 89 fa be 69 19 12 28 bf ad de e1 fe b8 a9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 f1 24 0d 00 f7 d8
RSP: 002b:00007fffa64acd28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a9
RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f35e17328d3
RDX: 000000004321fedc RSI: 0000000028121969 RDI: 00000000fee1dead
RBP: 000000004321fedc R08: 0000000000000000 R09: 0000000000000000
R10: 00007fffa64acd00 R11: 0000000000000246 R12: 00007f35e18d5490
R13: 00007fffa64acd7c R14: 00007f35e1915000 R15: 000055a33fb0ad98
</TASK>
* Struck through repros no longer work on HEAD.