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WARNING: CPU: 0 PID: 8007 at kernel/signal.c:2050 posixtimer_send_sigqueue+0x7ac/0xa40
Modules linked in:
CPU: 0 UID: 0 PID: 8007 Comm: syz.3.309 Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : posixtimer_send_sigqueue+0x7ac/0xa40
lr : posixtimer_send_sigqueue+0x2dc/0xa40 kernel/signal.c:2005
sp : ffff80009fa879c0
x29: ffff80009fa87a70 x28: dfff800000000000 x27: ffff80009fa87a20
x26: ffff0000d6756798 x25: ffff0000d6756840 x24: ffff0000d6756780
x23: ffff0000d2263c80 x22: ffff0000d6756824 x21: 1fffe0001acead04
x20: ffff0000d6756858 x19: 1fffe0001aceacf3 x18: ffff0000d1572240
x17: 0000000000000000 x16: ffff80008327a354 x15: ffff700013f50f10
x14: 1ffff00011f340ca x13: dfff800000000000 x12: 00000000d087d513
x11: 0000000006757adf x10: 0000000000ff0100 x9 : 7a8cf08263e44c00
x8 : ffff0000c4292288 x7 : ffff80008032fa2c x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000002000 x0 : 0000000000000001
Call trace:
 posixtimer_send_sigqueue+0x7ac/0xa40 (P)
 posix_timer_queue_signal+0xe4/0x12c kernel/time/posix-timers.c:308
 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+0xb44/0xfec kernel/time/posix-cpu-timers.c:1137
 task_work_run+0x230/0x2e0 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_da+0xbc/0x178 arch/arm64/kernel/entry-common.c:605
 el0t_64_sync_handler+0xcc/0x108 arch/arm64/kernel/entry-common.c:765
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 38
hardirqs last  enabled at (37): [<ffff80008b6cd25c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (37): [<ffff80008b6cd25c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (38): [<ffff80008b6cd08c>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (38): [<ffff80008b6cd08c>] _raw_spin_lock_irqsave+0x2c/0x7c kernel/locking/spinlock.c:162
softirqs last  enabled at (24): [<ffff80008030f088>] softirq_handle_end kernel/softirq.c:407 [inline]
softirqs last  enabled at (24): [<ffff80008030f088>] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589
softirqs last disabled at (17): [<ffff800080020db4>] __do_softirq+0x14/0x20 kernel/softirq.c:595
---[ end trace 0000000000000000 ]---