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WARNING: kernel/signal.c:373 at task_participate_group_stop+0x215/0x2d0 kernel/signal.c:373, CPU#1: memfd:[ÛX®[©ýþ/6260
Modules linked in:
CPU: 1 UID: 0 PID: 6260 Comm: memfd:[ÛX®[©ýþ Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:task_participate_group_stop+0x215/0x2d0 kernel/signal.c:373
Code: c0 41 89 04 24 b0 01 eb 07 e8 67 e9 38 00 31 c0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d2 4d d9 09 cc e8 4c e9 38 00 90 <0f> 0b 90 43 0f b6 04 2f 84 c0 0f 85 8b 00 00 00 41 8b 2e e9 4d ff
RSP: 0018:ffffc9000501fbe0 EFLAGS: 00010093
RAX: ffffffff81883054 RBX: 0000000000060014 RCX: ffff88802fa51e40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000a03f80 R12: ffff88802f1f0e80
R13: dffffc0000000000 R14: ffff88802f1f0f28 R15: 1ffff11005e3e1e5
FS:  0000000000000000(0000) GS:ffff888125cf9000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000ffe8cb2b CR3: 000000007cbe4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_signal_stop+0x3c1/0x5d0 kernel/signal.c:2617
 get_signal+0xa8d/0x1340 kernel/signal.c:2881
 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x87/0x4e0 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2c1/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0023:0xb7000000
Code: Unable to access opcode bytes at 0xb6ffffd6.
RSP: 002b:00000000ffe8ca40 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>