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WARNING: CPU: 1 PID: 13403 at kernel/signal.c:2050 posixtimer_send_sigqueue+0x7ac/0xa40
Modules linked in:
CPU: 1 UID: 0 PID: 13403 Comm: syz.0.2620 Not tainted 6.13.0-rc2-syzkaller-g2e7aff49b5da #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 : ffff80009d3579c0
x29: ffff80009d357a70 x28: dfff800000000000 x27: ffff80009d357a20
x26: ffff0000d5cb43d8 x25: ffff0000d5cb4480 x24: ffff0000d5cb43c0
x23: ffff0000d5d03c80 x22: ffff0000d5cb4464 x21: 1fffe0001ab9688c
x20: ffff0000d5cb4498 x19: 1fffe0001ab9687b x18: ffff80009d3575e0
x17: 000000000002dce5 x16: ffff80008326d65c x15: 0000000000000001
x14: 1ffff0001267c9b4 x13: dfff800000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 0000000000043a8c x9 : e9e547db165c3700
x8 : ffff0000c6759bc8 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff80008045f8bc
x2 : 0000000000000000 x1 : 0000000000002000 x0 : 0000000000000001
Call trace:
 posixtimer_send_sigqueue+0x7ac/0xa40 (P)
 posixtimer_send_sigqueue+0x2dc/0xa40 kernel/signal.c:2005 (L)
 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+0xb44/0xfe4 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_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 514
hardirqs last  enabled at (513): [<ffff80008b6a9c9c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (513): [<ffff80008b6a9c9c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (514): [<ffff80008b6a9acc>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (514): [<ffff80008b6a9acc>] _raw_spin_lock_irqsave+0x2c/0x7c kernel/locking/spinlock.c:162
softirqs last  enabled at (504): [<ffff8000897ebb54>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (498): [<ffff8000897ebb20>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---