------------[ cut here ]------------ WARNING: CPU: 1 PID: 9561 at kernel/time/posix-cpu-timers.c:401 posix_cpu_timer_del+0x2f0/0x3b0 kernel/time/posix-cpu-timers.c:401 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9561 Comm: syz-executor.3 Not tainted 5.3.0-rc6-next-20190827 #74 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2dc/0x755 kernel/panic.c:220 __warn.cold+0x2f/0x3c kernel/panic.c:581 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:posix_cpu_timer_del+0x2f0/0x3b0 kernel/time/posix-cpu-timers.c:401 Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 83 bb c8 00 00 00 00 74 16 e8 10 58 0d 00 <0f> 0b e9 87 fe ff ff e8 b4 3e 48 00 e9 dd fd ff ff e8 fa 57 0d 00 RSP: 0018:ffff888059c97a30 EFLAGS: 00010093 RAX: ffff888059ce8440 RBX: ffff88809cb8bb80 RCX: 1ffff1100b39d19a RDX: 0000000000000000 RSI: ffffffff8164d5c0 RDI: ffff88809cb8bc48 RBP: ffff888059c97ac0 R08: 0000000000000002 R09: ffff888059ce8cd8 R10: fffffbfff138b140 R11: ffffffff89c58a07 R12: ffff888059e2a400 R13: 1ffff1100b392f47 R14: ffff888059c97a98 R15: ffff88809cb8bbd8 timer_delete_hook kernel/time/posix-timers.c:978 [inline] itimer_delete kernel/time/posix-timers.c:1021 [inline] exit_itimers+0xdb/0x2e0 kernel/time/posix-timers.c:1041 do_exit+0x1980/0x2e60 kernel/exit.c:853 do_group_exit+0x135/0x360 kernel/exit.c:983 get_signal+0x47c/0x2500 kernel/signal.c:2734 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x65f/0x760 arch/x86/entry/common.c:300 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4596e7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa5f8b569f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007fa5f8b576d4 RCX: 00000000004596e7 RDX: 00007fa5f8b56ab0 RSI: 0000000000004c04 RDI: 0000000000000004 RBP: 0000000000000002 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000003 R13: 0000000000000003 R14: 0000000000000004 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..