------------[ cut here ]------------
WARNING: CPU: 0 PID: 11023 at kernel/signal.c:2050 posixtimer_send_sigqueue+0xa08/0xce0 kernel/signal.c:2050
Modules linked in:
CPU: 0 UID: 0 PID: 11023 Comm: syz.5.1623 Not tainted 6.13.0-rc3-syzkaller-00026-g59dbb9d81adf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
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 20 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:ffffc90003f3fb00 EFLAGS: 00010086
RAX: dffffc0000000000 RBX: 1ffff11005b26697 RCX: 0000000000080000
RDX: ffffc9001b9da000 RSI: 00000000000423db RDI: 00000000000423dc
RBP: ffffc90003f3fbf0 R08: ffffffff81646080 R09: 1ffffffff284e138
R10: dffffc0000000000 R11: fffffbfff284e139 R12: ffff88802d9334a0
R13: 1ffff11005b266a4 R14: ffff88802d9334b8 R15: ffff88802d933560
FS:  00007fb8d4bee6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff52c375fac CR3: 00000000307ce000 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: 0033:0x7fb8d3d85d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb8d4bee038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: 0000000000000058 RBX: 00007fb8d3f75fa0 RCX: 00007fb8d3d85d29
RDX: 0000000000000001 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007fb8d3e01a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb8d3f75fa0 R15: 00007ffec872ae18
 </TASK>