------------[ cut here ]------------
WARNING: CPU: 1 PID: 6250 at kernel/signal.c:2050 posixtimer_send_sigqueue+0xa08/0xce0 kernel/signal.c:2050
Modules linked in:
CPU: 1 UID: 0 PID: 6250 Comm: syz.0.67 Not tainted 6.13.0-rc6-syzkaller-00290-gbe548645527a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:posixtimer_send_sigqueue+0xa08/0xce0 kernel/signal.c:2050
Code: 00 0f 85 f4 02 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 23 1e 3b 00 4c 8b 64 24 08 e9 28 ff ff ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 f7
RSP: 0018:ffffc9000b5f7b00 EFLAGS: 00010086
RAX: dffffc0000000000 RBX: 1ffff11006856c3f RCX: ffff8880324b9e00
RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000000000000
RBP: ffffc9000b5f7bf0 R08: ffffffff81647110 R09: 1ffffffff2854b12
R10: dffffc0000000000 R11: fffffbfff2854b13 R12: ffff8880342b61e0
R13: 1ffff11006856c4c R14: ffff8880342b61f8 R15: ffff8880342b62a0
FS:  000055557754f500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38d45f6d58 CR3: 0000000034850000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 cpu_timer_fire kernel/time/posix-cpu-timers.c:607 [inline]
 handle_posix_cpu_timers kernel/time/posix-cpu-timers.c:1390 [inline]
 posix_cpu_timers_work+0x9dd/0x1490 kernel/time/posix-cpu-timers.c:1137
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f38d67ba589
Code: 1b 08 00 48 8d 3d fc 1b 08 00 e8 12 29 f6 ff 66 90 b8 ea ff ff ff 48 85 ff 74 2c 48 85 d2 74 27 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 18 74 01 c3 31 ed 48 83 e4 f0 4c 89 c7 ff d2 48 89 c7
RSP: 002b:00007f38d6a9f8f8 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3
RAX: 0000000000000033 RBX: 00007f38d673c9a0 RCX: 00007f38d67ba589
RDX: 00007f38d673c9a0 RSI: 0000000000000058 RDI: 00007f38d6a9f940
RBP: 00007f38d45f66c0 R08: 00007f38d45f66c0 R09: 00007f38d6a9fa27
R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffffa8
R13: 000000000000000b R14: 00007f38d6a9f940 R15: 00007f38d6a9fa28
 </TASK>