------------[ cut here ]------------
WARNING: CPU: 1 PID: 5648 at kernel/signal.c:370 task_participate_group_stop+0x239/0x300 kernel/signal.c:370
Modules linked in:
CPU: 1 UID: 0 PID: 5648 Comm: 4 Not tainted 6.11.0-syzkaller-11558-g075dbe9f6e3c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:task_participate_group_stop+0x239/0x300 kernel/signal.c:370
Code: 83 e0 cc 83 c8 01 41 89 04 24 b0 01 eb 07 e8 ce 4e 3a 00 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 b8 4e 3a 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 0f 85 8b
RSP: 0018:ffffc90004b7fb48 EFLAGS: 00010093
RAX: ffffffff815a65b8 RBX: 1ffff11004b4b285 RCX: ffff888025889e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff815a64e8 R09: fffff5200096ff6c
R10: dffffc0000000000 R11: fffff5200096ff6c R12: ffff888025a59380
R13: 1ffff11004b1146e R14: 0000000000060013 R15: ffff888025a59428
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000ffc08f50 CR3: 0000000074000000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_signal_stop+0x7e2/0xa60 kernel/signal.c:2500
 get_signal+0xc12/0x1740 kernel/signal.c:2764
 arch_do_signal_or_restart+0x96/0x860 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+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0023:0xb7000000
Code: Unable to access opcode bytes at 0xb6ffffd6.
RSP: 002b:00000000ffc08f50 EFLAGS: 00000202 ORIG_RAX: 000000000000000b
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>