WARNING in do

WARNING in do_exit

Status: upstream: reported on 2026/05/02 12:20
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+8fdf0d8e10bdde1c2e88@syzkaller.appspotmail.com
First crash: 7d11h, last: 7d11h

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Title	Replies (including bot)	Last reply
[syzbot] [kernel?] WARNING in do_exit	0 (1)	2026/05/02 12:20

Sample crash report:

WARNING: kernel/signal.c:2174 at do_notify_parent+0xea8/0x10b0 kernel/signal.c:2174, CPU#2: syz.2.2072/13056
Kernel panic - n�o�t sync�i�n�g�:� �k�e�r�n�e�l�:� �panic_on_warn set ...
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 check_panic_on_warn kernel/panic.c:524 [inline]
 check_panic_on_warn.cold+0x19/0x34 kernel/panic.c:519
 __warn.cold+0x191/0x328 kernel/panic.c:1103
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:616
RSP: 0018:ffffc9000f407aa8 EFLAGS: 00010093
RDX: ffff88805386ca00 RSI: ffffffff81caad07 RDI: ffff88805386ca00
R10: 0000000000000080 R11: 0000000000000000 R12: 1ffff92001e80f58
 exit_notify kernel/exit.c:757 [inline]
 do_exit+0x1b05/0x2a60 kernel/exit.c:987
 get_signal+0x1ec7/0x21e0 kernel/signal.c:3037
 asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:612
RSP: 002b:00002000000001e0 EFLAGS: 00010217
R13: 00007fcbfe616038 R14: 00007fcbfe615fa0 R15: 00007ffd58e78548
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/04/28 12:09	upstream	3b3bea6d4b9c	340bcdf0	.config	console log	report			info	[disk image (non-bootable)] [vmlinux] [kernel image]	ci-qemu-upstream	WARNING in do_exit

* ~~Struck through~~ repros no longer work on HEAD.