------------[ cut here ]------------
WARNING: CPU: 0 PID: 562 at kernel/signal.c:375 task_participate_group_stop+0x242/0x300 kernel/signal.c:375
Modules linked in:
CPU: 0 UID: 0 PID: 562 Comm: file0 Not tainted syzkaller #0 5adf726ab28801c07fd45706e49e1b3a66128c4b
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:task_participate_group_stop+0x242/0x300 kernel/signal.c:375
Code: 74 08 4c 89 f7 e8 fe ea 8c 00 4d 89 2e f0 83 44 24 fc 00 4c 89 f7 be 15 00 00 00 e8 98 9d 10 00 e9 aa fe ff ff e8 5e 36 34 00 <0f> 0b 42 0f b6 04 2b 84 c0 0f 85 8c 00 00 00 45 8b 3e e9 ee fe ff
RSP: 0018:ffffc9000d57fc30 EFLAGS: 00010083
RAX: ffffffff81533b92 RBX: 1ffff1102711e9ee RCX: 0000000000080000
RDX: ffffc90002635000 RSI: 00000000000419de RDI: 00000000000419df
RBP: ffffc9000d57fc60 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001aaff90 R12: ffff8881388f4f00
R13: dffffc0000000000 R14: ffff8881388f4f70 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcbf699f79 CR3: 000000011bde0000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 do_signal_stop+0x63e/0x840 kernel/signal.c:2516
 get_signal+0xa7a/0x1490 kernel/signal.c:2780
 arch_do_signal_or_restart+0xbc/0x700 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0xfe
Code: Unable to access opcode bytes at 0xd4.
RSP: 002b:00007ffcbf699df0 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
---[ end trace 0000000000000000 ]---