[ 44.746231] audit: type=1800 audit(1562019758.683:30): pid=7508 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0 [....] 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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 48.736542] kauditd_printk_skb: 4 callbacks suppressed [ 48.736557] audit: type=1400 audit(1562019762.703:35): avc: denied { map } for pid=7685 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 '10.128.0.54' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 55.353637] audit: type=1400 audit(1562019769.323:36): avc: denied { map } for pid=7697 comm="syz-executor331" path="/root/syz-executor331661825" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 74.148441] WARNING: CPU: 0 PID: 9500 at kernel/events/core.c:1833 perf_group_attach+0x3fd/0x4d0 [ 74.157964] Kernel panic - not syncing: panic_on_warn set ... [ 74.157964] [ 74.165441] CPU: 0 PID: 9500 Comm: syz-executor331 Not tainted 4.19.56 #28 [ 74.172466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.181848] Call Trace: [ 74.184508] dump_stack+0x172/0x1f0 [ 74.188322] panic+0x263/0x507 [ 74.191527] ? __warn_printk+0xf3/0xf3 [ 74.195437] ? perf_group_attach+0x3fd/0x4d0 [ 74.199861] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 74.205440] ? __warn.cold+0x5/0x4a [ 74.209076] ? __warn+0xe8/0x1d0 [ 74.212456] ? perf_group_attach+0x3fd/0x4d0 [ 74.216877] __warn.cold+0x20/0x4a [ 74.220424] ? perf_group_attach+0x3fd/0x4d0 [ 74.224841] report_bug+0x263/0x2b0 [ 74.228489] do_error_trap+0x204/0x360 [ 74.232389] ? math_error+0x340/0x340 [ 74.236212] ? mark_held_locks+0x100/0x100 [ 74.240471] ? error_entry+0x76/0xd0 [ 74.244202] ? trace_hardirqs_off_caller+0x65/0x220 [ 74.249498] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 74.254351] do_invalid_op+0x1b/0x20 [ 74.258098] invalid_op+0x14/0x20 [ 74.261557] RIP: 0010:perf_group_attach+0x3fd/0x4d0 [ 74.266577] 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 80 a9 b0 88 e8 c0 ac 22 00 e9 5b fc [ 74.285493] RSP: 0018:ffff88808a59fa90 EFLAGS: 00010093 [ 74.290870] RAX: ffff8880958e2140 RBX: ffff888095ebe040 RCX: ffffffff817ecbd8 [ 74.298152] RDX: 0000000000000000 RSI: ffffffff817ecefd RDI: ffff888095ebe258 [ 74.305436] RBP: ffff88808a59fac0 R08: ffff8880958e2140 R09: ffffffff89781008 [ 74.312737] R10: ffffffff89781010 R11: 0000000000000001 R12: ffff888095ebf140 [ 74.320108] R13: ffffe8ffffc13f50 R14: 0000000000000000 R15: ffff8880ae832048 [ 74.327413] ? perf_group_attach+0xd8/0x4d0 [ 74.331770] ? perf_group_attach+0x3fd/0x4d0 [ 74.336218] __perf_install_in_context+0x4b5/0x960 [ 74.341170] ? __perf_event_enable+0x910/0x910 [ 74.345777] ? perf_duration_warn+0x40/0x40 [ 74.350109] remote_function+0x129/0x1a0 [ 74.354178] generic_exec_single+0x27c/0x4a0 [ 74.358617] smp_call_function_single+0x12d/0x420 [ 74.363489] ? perf_duration_warn+0x40/0x40 [ 74.367834] ? generic_exec_single+0x4a0/0x4a0 [ 74.372924] perf_install_in_context+0x369/0x3d0 [ 74.377686] ? list_add_event+0xec0/0xec0 [ 74.381835] ? __perf_event_enable+0x910/0x910 [ 74.386432] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 74.391995] __do_sys_perf_event_open+0x1993/0x2730 [ 74.397030] ? perf_event_set_output+0x4e0/0x4e0 [ 74.401809] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 74.406590] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 74.411374] ? do_syscall_64+0x26/0x620 [ 74.415359] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.420729] ? do_syscall_64+0x26/0x620 [ 74.424734] __x64_sys_perf_event_open+0xbe/0x150 [ 74.429589] do_syscall_64+0xfd/0x620 [ 74.433397] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.438586] RIP: 0033:0x446a49 [ 74.441782] Code: e8 0c e8 ff ff 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 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 74.460782] RSP: 002b:00007fededc65db8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 74.468506] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446a49 [ 74.475783] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000020000000 [ 74.483102] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 74.490385] R10: 0000000000000003 R11: 0000000000000246 R12: 00000000006dbc2c [ 74.497683] R13: 00007ffc2db3b81f R14: 00007fededc669c0 R15: 000000000000002d [ 74.506490] Kernel Offset: disabled [ 74.510384] Rebooting in 86400 seconds..