[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 51.719594][ T6840] ------------[ cut here ]------------ [ 51.725140][ T6840] WARNING: CPU: 0 PID: 6840 at kernel/entry/common.c:338 irqentry_exit+0x24/0xa0 [ 51.734346][ T6840] Kernel panic - not syncing: panic_on_warn set ... [ 51.740965][ T6840] CPU: 0 PID: 6840 Comm: syz-executor871 Not tainted 5.8.0-syzkaller #0 [ 51.749263][ T6840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.759377][ T6840] Call Trace: [ 51.762662][ T6840] dump_stack+0x1f0/0x31e [ 51.766971][ T6840] panic+0x264/0x7a0 [ 51.770974][ T6840] ? __warn+0x102/0x250 [ 51.775118][ T6840] ? irqentry_exit+0x24/0xa0 [ 51.779691][ T6840] ? irqentry_exit+0x24/0xa0 [ 51.784265][ T6840] __warn+0x227/0x250 [ 51.788225][ T6840] ? irqentry_exit+0x24/0xa0 [ 51.792806][ T6840] report_bug+0x1b1/0x2e0 [ 51.797119][ T6840] handle_bug+0x42/0x80 [ 51.801646][ T6840] exc_invalid_op+0x16/0x40 [ 51.806142][ T6840] asm_exc_invalid_op+0x12/0x20 [ 51.810975][ T6840] RIP: 0010:irqentry_exit+0x24/0xa0 [ 51.816224][ T6840] Code: f9 b0 01 c3 66 90 53 83 3d 8c 2f 68 01 00 74 0b 65 8b 05 6f 24 db 77 85 c0 75 0f f6 87 88 00 00 00 03 74 11 5b e9 6c ff ff ff <0f> 0b f6 87 88 00 00 00 03 75 ef f6 87 91 00 00 00 02 75 0c 40 f6 [ 51.835829][ T6840] RSP: 0018:ffffc90001007338 EFLAGS: 00010002 [ 51.841885][ T6840] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff8880a814a5c0 [ 51.849866][ T6840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90001007348 [ 51.858509][ T6840] RBP: 0000000000000000 R08: ffffffff817ab6e4 R09: 0000000000000000 [ 51.866459][ T6840] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 51.874451][ T6840] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.882409][ T6840] ? trace_hardirqs_off+0x24/0x70 [ 51.887415][ T6840] asm_exc_page_fault+0x1e/0x30 [ 51.892244][ T6840] RIP: 0010:__softirqentry_text_end+0x1f/0x53 [ 51.898475][ T6840] Code: 54 f9 e9 24 fe ff ff 0f 0b 0f 0b 0f 01 f8 0f 1f 80 00 00 00 00 31 c0 8e e8 e9 96 08 e0 ff ba f2 ff ff ff 31 c9 e9 01 97 c6 ff f2 ff ff ff 4d 31 ed e9 d6 ff a0 f8 bb f2 ff ff ff 4d 31 ff e9 [ 51.918482][ T6840] RSP: 0018:ffffc900010073f0 EFLAGS: 00010046 [ 51.924611][ T6840] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880a814a5c0 [ 51.932574][ T6840] RDX: ffff8880a814a5c0 RSI: 0000000000000001 RDI: 00007fffffffeff0 [ 51.940524][ T6840] RBP: ffffc900010074c0 R08: ffffffff8101065a R09: ffffed10150294b9 [ 51.948477][ T6840] R10: ffffed10150294b9 R11: 0000000000000000 R12: ffff8880a814aa50 [ 51.956437][ T6840] R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001 [ 51.964401][ T6840] ? perf_callchain_user+0x3ba/0x1080 [ 51.969758][ T6840] get_perf_callchain+0x49d/0x6f0 [ 51.974763][ T6840] perf_prepare_sample+0x2ef/0x19f0 [ 51.979945][ T6840] perf_event_output_forward+0xa7/0x1c0 [ 51.985466][ T6840] ? __perf_event_account_interrupt+0x17e/0x2a0 [ 51.991703][ T6840] __perf_event_overflow+0x1b9/0x340 [ 51.996995][ T6840] perf_swevent_event+0x4d9/0x570 [ 52.002016][ T6840] perf_tp_event+0x2d4/0xa70 [ 52.006599][ T6840] ? validate_chain+0x94/0x88a0 [ 52.011429][ T6840] ? mark_lock+0x102/0x1b00 [ 52.015909][ T6840] ? perf_trace_lock+0x2f8/0x360 [ 52.020843][ T6840] ? trace_event_raw_event_lock+0x1a0/0x1a0 [ 52.026735][ T6840] ? trace_lock_release+0x137/0x1a0 [ 52.031973][ T6840] ? __lock_acquire+0x1161/0x2ab0 [ 52.036984][ T6840] perf_trace_run_bpf_submit+0x106/0x1a0 [ 52.042685][ T6840] perf_trace_lock+0x2f8/0x360 [ 52.047437][ T6840] ? trace_event_raw_event_lock+0x1a0/0x1a0 [ 52.053336][ T6840] ? futex_wait+0x327/0x620 [ 52.057827][ T6840] trace_lock_release+0xc5/0x1a0 [ 52.062743][ T6840] lock_release+0xe0/0x750 [ 52.067137][ T6840] ? plist_check_list+0x22b/0x240 [ 52.072136][ T6840] ? plist_del+0x3bb/0x3e0 [ 52.077489][ T6840] ? futex_wait+0x327/0x620 [ 52.081984][ T6840] _raw_spin_unlock+0x12/0x40 [ 52.086682][ T6840] futex_wait+0x327/0x620 [ 52.091524][ T6840] do_futex+0xe92/0x3290 [ 52.095768][ T6840] ? iterate_fd+0x320/0x350 [ 52.100250][ T6840] ? trace_lock_release+0x137/0x1a0 [ 52.105444][ T6840] ? rcu_lock_release+0x9/0x20 [ 52.110209][ T6840] ? __fd_install+0x251/0x490 [ 52.114870][ T6840] ? __se_sys_perf_event_open+0x39f4/0x3fa0 [ 52.120765][ T6840] __se_sys_futex+0x2a7/0x390 [ 52.125430][ T6840] ? syscall_enter_from_user_mode+0x24/0x190 [ 52.131485][ T6840] ? lockdep_hardirqs_on+0x49/0xf0 [ 52.136581][ T6840] ? __x64_sys_futex+0x1d/0xf0 [ 52.141330][ T6840] do_syscall_64+0x31/0x70 [ 52.145730][ T6840] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.151641][ T6840] RIP: 0033:0x4467f9 [ 52.155534][ T6840] Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 8b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.175129][ T6840] RSP: 002b:00007f067c65fdb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 52.183554][ T6840] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467f9 [ 52.191517][ T6840] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc28 [ 52.199565][ T6840] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 52.207517][ T6840] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 52.215564][ T6840] R13: 00007ffec78d876f R14: 00007f067c6609c0 R15: 0000000000000000 [ 52.224900][ T6840] Kernel Offset: disabled [ 52.229221][ T6840] Rebooting in 86400 seconds..