------------[ cut here ]------------ WARNING: kernel/signal.c:2174 at do_notify_parent+0xb50/0xc3c kernel/signal.c:-1, CPU#1: syz.0.17/4867 Modules linked in: CPU: 1 UID: 0 PID: 4867 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 834000c5 (Nzcv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : do_notify_parent+0xb50/0xc3c kernel/signal.c:-1 lr : do_notify_parent+0xb4c/0xc3c kernel/signal.c:2174 sp : ffff800096d07b00 x29: ffff800096d07c00 x28: ffff800096d07b20 x27: dfff800000000000 x26: ffff700012da0f64 x25: ffff800096d07ce0 x24: dfff800000000000 x23: ffff0000d0542290 x22: 0000000000000080 x21: 0000000000000080 x20: 0000000000000000 x19: ffff0000d0541d00 x18: 0000000000000000 x17: ffff800080300b50 x16: ffff8000802fec0c x15: ffff800080d3b948 x14: ffff800080d3b878 x13: 0000000000000006 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000001 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff80008032850c x2 : 0000000000000080 x1 : ffff0000d0541d00 x0 : 0000000000000000 Call trace: do_notify_parent+0xb50/0xc3c kernel/signal.c:-1 (P) exit_notify kernel/exit.c:757 [inline] do_exit+0xf4c/0x1a6c kernel/exit.c:987 __do_sys_exit kernel/exit.c:1084 [inline] __se_sys_exit kernel/exit.c:1082 [inline] do_group_exit+0x0/0x22c kernel/exit.c:1082 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 516 hardirqs last enabled at (515): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (515): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:198 hardirqs last disabled at (516): [] __raw_write_lock_irq include/linux/rwlock_api_smp.h:211 [inline] hardirqs last disabled at (516): [] _raw_write_lock_irq+0x28/0x70 kernel/locking/spinlock.c:330 softirqs last enabled at (60): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (58): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---