[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.222393] audit: type=1800 audit(1561019331.942:33): pid=7330 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 37.243478] audit: type=1800 audit(1561019331.942:34): pid=7330 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 50.975234] audit: type=1400 audit(1561019345.692:35): avc: denied { map } for pid=7506 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.1.22' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 58.073826] audit: type=1400 audit(1561019352.792:36): avc: denied { map } for pid=7518 comm="syz-executor977" path="/root/syz-executor977441088" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 58.201131] WARNING: CPU: 0 PID: 7519 at kernel/events/core.c:1833 perf_group_attach+0x3fd/0x4d0 [ 58.210172] Kernel panic - not syncing: panic_on_warn set ... [ 58.210172] [ 58.217616] CPU: 0 PID: 7519 Comm: syz-executor977 Not tainted 4.19.53+ #25 [ 58.224704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.234054] Call Trace: [ 58.236623] [ 58.238768] dump_stack+0x172/0x1f0 [ 58.242386] panic+0x263/0x507 [ 58.245568] ? __warn_printk+0xf3/0xf3 [ 58.249458] ? perf_group_attach+0x3fd/0x4d0 [ 58.254167] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.259785] ? __warn.cold+0x5/0x4a [ 58.263420] ? __warn+0xe8/0x1d0 [ 58.266778] ? perf_group_attach+0x3fd/0x4d0 [ 58.271183] __warn.cold+0x20/0x4a [ 58.274712] ? perf_group_attach+0x3fd/0x4d0 [ 58.279108] report_bug+0x263/0x2b0 [ 58.282834] do_error_trap+0x204/0x360 [ 58.286716] ? math_error+0x340/0x340 [ 58.290513] ? mark_held_locks+0x100/0x100 [ 58.294732] ? error_entry+0x76/0xd0 [ 58.298443] ? trace_hardirqs_off_caller+0x65/0x220 [ 58.303548] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.308381] do_invalid_op+0x1b/0x20 [ 58.312079] invalid_op+0x14/0x20 [ 58.315519] RIP: 0010:perf_group_attach+0x3fd/0x4d0 [ 58.320526] Code: ff 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 75 57 48 8b 5b 10 48 83 eb 10 49 39 dc 75 d4 e9 20 ff ff ff e8 b3 47 ec ff <0f> 0b e9 55 fd ff ff 48 c7 c7 40 a8 b0 88 e8 60 ac 22 00 e9 5b fc [ 58.339412] RSP: 0018:ffff8880ae807ea8 EFLAGS: 00010006 [ 58.344777] RAX: ffff888088924240 RBX: ffff8880993fd440 RCX: ffffffff817ecbd8 [ 58.352036] RDX: 0000000000010000 RSI: ffffffff817ecefd RDI: ffff8880993fd658 [ 58.359295] RBP: ffff8880ae807ed8 R08: ffff888088924240 R09: ffffffff89781008 [ 58.366548] R10: ffffffff89781010 R11: 0000000000000001 R12: ffff88809ef4a300 [ 58.373807] R13: ffffe8ffffc13f50 R14: 0000000000000000 R15: ffff8880ae832048 [ 58.381075] ? perf_group_attach+0xd8/0x4d0 [ 58.385394] ? perf_group_attach+0x3fd/0x4d0 [ 58.389798] ? perf_group_attach+0x3fd/0x4d0 [ 58.394221] __perf_install_in_context+0x4b5/0x960 [ 58.399158] ? kvm_clock_read+0x18/0x30 [ 58.403117] ? __perf_event_enable+0x910/0x910 [ 58.407701] remote_function+0x129/0x1a0 [ 58.411753] flush_smp_call_function_queue+0x147/0x4f0 [ 58.417035] ? perf_duration_warn+0x40/0x40 [ 58.421360] generic_smp_call_function_single_interrupt+0x13/0x2b [ 58.427620] smp_call_function_single_interrupt+0x9d/0x450 [ 58.433230] call_function_single_interrupt+0xf/0x20 [ 58.438321] [ 58.440556] RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 [ 58.445651] Code: c0 58 36 72 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 0d cd 82 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 12 cf 59 fa 65 8b 05 6b 84 12 79 85 c0 74 06 41 [ 58.464539] RSP: 0018:ffff8880a08a7b18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04 [ 58.472329] RAX: 1ffffffff10e46cb RBX: ffff888088924240 RCX: 0000000000000000 [ 58.479584] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff888088924abc [ 58.486837] RBP: ffff8880a08a7b20 R08: ffff888088924240 R09: 0000000000000000 [ 58.494095] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae82cdc0 [ 58.501353] R13: ffff888099bea680 R14: 0000000000000000 R15: 0000000000000001 [ 58.508628] ? _raw_spin_unlock_irq+0x28/0x90 [ 58.513263] finish_task_switch+0x146/0x780 [ 58.517581] ? finish_task_switch+0x118/0x780 [ 58.522084] ? switch_mm_irqs_off+0x7fa/0x1370 [ 58.526664] __schedule+0x815/0x1c70 [ 58.530375] ? hrtimer_start_range_ns+0x665/0xc70 [ 58.535214] ? pci_mmcfg_check_reserved+0x170/0x170 [ 58.540233] ? __hrtimer_get_remaining+0x1a0/0x1a0 [ 58.545151] ? lockdep_hardirqs_on+0x415/0x5d0 [ 58.549724] schedule+0x92/0x1c0 [ 58.553079] do_nanosleep+0x201/0x690 [ 58.556867] ? __debug_object_init+0x190/0xc30 [ 58.561443] ? schedule_timeout_idle+0x90/0x90 [ 58.566024] ? memset+0x32/0x40 [ 58.569294] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.574822] ? __hrtimer_init+0xe1/0x250 [ 58.578872] hrtimer_nanosleep+0x2a6/0x570 [ 58.583095] ? nanosleep_copyout+0x110/0x110 [ 58.587492] ? _copy_from_user+0xdd/0x150 [ 58.591725] ? clock_was_set_work+0x30/0x30 [ 58.596042] __x64_sys_nanosleep+0x1a6/0x220 [ 58.600440] ? hrtimer_nanosleep+0x570/0x570 [ 58.604836] ? do_syscall_64+0x26/0x620 [ 58.608799] ? lockdep_hardirqs_on+0x415/0x5d0 [ 58.613375] ? trace_hardirqs_on+0x67/0x220 [ 58.617686] do_syscall_64+0xfd/0x620 [ 58.621478] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 58.626655] RIP: 0033:0x4471f0 [ 58.629934] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 01 ce 29 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 64 1f fc ff c3 48 83 ec 08 e8 9a 42 00 00 [ 58.648838] RSP: 002b:00007ffc818acaa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 58.656557] RAX: ffffffffffffffda RBX: 00007ffc818acae0 RCX: 00000000004471f0 [ 58.663824] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffc818acab0 [ 58.671089] RBP: 0000000000001d6e R08: 0000000000001d5f R09: 0000000001366940 [ 58.678359] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000e2e6 [ 58.685616] R13: 0000000000409670 R14: 0000000000000000 R15: 0000000000000000 [ 58.694362] Kernel Offset: disabled [ 58.699738] Rebooting in 86400 seconds..