process 'memfd:-BÕN4¦EyÛѧ±Sñ:)' started with executable stack
------------[ cut here ]------------
sig->group_stop_count == 0
WARNING: kernel/signal.c:373 at task_participate_group_stop+0x215/0x2d0 kernel/signal.c:373, CPU#1: memfd:-BÕN4¦EyÛ/6054
Modules linked in:
CPU: 1 UID: 0 PID: 6054 Comm: memfd:-BÕN4¦EyÛ Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:task_participate_group_stop+0x215/0x2d0 kernel/signal.c:373
Code: c0 41 89 04 24 b0 01 eb 07 e8 27 c5 3a 00 31 c0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 0c c5 3a 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:ffffc90003027be0 EFLAGS: 00010093
RAX: ffffffff818b2d84 RBX: 0000000000060013 RCX: ffff888030933c80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000604f80 R12: ffff88801d7bba00
R13: dffffc0000000000 R14: ffff88801d7bbaa8 R15: 1ffff11003af7755
FS:  0000000000000000(0000) GS:ffff888125102000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000ffc1b20b CR3: 000000005b4ba000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_signal_stop+0x3be/0x5c0 kernel/signal.c:2617
 get_signal+0xa8c/0x1330 kernel/signal.c:2881
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __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 include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0023:0x33e
Code: Unable to access opcode bytes at 0x314.
RSP: 002b:00000000ffc1b120 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>