Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 8.268769][ T22] audit: type=1400 audit(1582355345.444:10): avc: denied { watch } for pid=1775 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16179 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 8.275337][ T22] audit: type=1400 audit(1582355345.444:11): avc: denied { watch } for pid=1775 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2280 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] 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: [ 16.543770][ T22] audit: type=1400 audit(1582355353.724:12): avc: denied { map } for pid=1854 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 '10.128.10.38' (ECDSA) to the list of known hosts. executing program [ 22.610135][ T22] audit: type=1400 audit(1582355359.784:13): avc: denied { map } for pid=1872 comm="syz-executor810" path="/root/syz-executor810725438" dev="sda1" ino=16482 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 [ 22.659179][ T22] audit: type=1305 audit(1582355359.834:14): op=set audit_failure=2 old=1 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 res=1 [ 22.684007][ T1885] audit: audit_backlog=29 > audit_backlog_limit=2 [ 22.688638][ T22] audit: type=1325 audit(1582355359.834:15): table=filter family=3 entries=0 [ 22.698100][ T1884] audit: audit_backlog=34 > audit_backlog_limit=2 [ 22.699486][ T22] audit: type=1325 audit(1582355359.834:16): table=filter family=2 entries=0 [ 22.705874][ T1885] audit: audit_lost=1 audit_rate_limit=4294967295 audit_backlog_limit=2 [ 22.714660][ T22] audit: type=1325 audit(1582355359.834:17): table=nat family=2 entries=0 [ 22.722940][ T1884] audit: audit_lost=2 audit_rate_limit=4294967295 audit_backlog_limit=2 [ 22.731439][ T22] audit: type=1325 audit(1582355359.834:18): table=mangle family=2 entries=0 [ 22.739819][ T1884] Kernel panic - not syncing: audit: backlog limit exceeded [ 22.755687][ T1884] CPU: 1 PID: 1884 Comm: syz-executor810 Not tainted 5.4.21-syzkaller-00756-ge12432318607 #0 [ 22.765975][ T1884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.776349][ T1884] Call Trace: [ 22.779703][ T1884] dump_stack+0x1b0/0x228 [ 22.784017][ T1884] ? devkmsg_release+0x127/0x127 [ 22.788928][ T1884] ? show_regs_print_info+0x18/0x18 [ 22.794113][ T1884] ? _raw_spin_trylock+0xc6/0x190 [ 22.799118][ T1884] panic+0x26c/0x719 [ 22.803340][ T1884] ? audit_log_lost+0x114/0x1e0 [ 22.808163][ T1884] ? nmi_panic+0x97/0x97 [ 22.812382][ T1884] ? devkmsg_release+0x127/0x127 [ 22.817393][ T1884] audit_log_lost+0x1d7/0x1e0 [ 22.822130][ T1884] audit_log_start+0x55b/0x9a0 [ 22.826886][ T1884] ? __sys_getsockopt+0x1f4/0x360 [ 22.831971][ T1884] ? audit_serial+0x30/0x30 [ 22.836449][ T1884] ? nf_getsockopt+0x28e/0x2b0 [ 22.841184][ T1884] ? ip_getsockopt+0x13c/0x230 [ 22.845920][ T1884] ? tcp_getsockopt+0xbe/0xd0 [ 22.850584][ T1884] ? sock_common_getsockopt+0x99/0xb0 [ 22.856110][ T1884] ? __sys_getsockopt+0x1f4/0x360 [ 22.861112][ T1884] ? __x64_sys_getsockopt+0xbf/0xd0 [ 22.866303][ T1884] ? do_syscall_64+0xc0/0x100 [ 22.870959][ T1884] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.877001][ T1884] ? __kasan_check_write+0x14/0x20 [ 22.882085][ T1884] ? mutex_unlock+0x1d/0x40 [ 22.886565][ T1884] ? xt_find_target+0x22c/0x240 [ 22.891388][ T1884] audit_log+0x99/0x130 [ 22.896576][ T1884] ? audit_signal_info+0x250/0x250 [ 22.901763][ T1884] ? _local_bh_enable+0x30/0x30 [ 22.906678][ T1884] ? __kmalloc+0x102/0x310 [ 22.911344][ T1884] ? kasan_kmalloc+0x9/0x10 [ 22.915821][ T1884] ? find_next_bit+0xd8/0x120 [ 22.920480][ T1884] ? cpumask_next+0x11/0x30 [ 22.924969][ T1884] xt_replace_table+0x61b/0x7a0 [ 22.929807][ T1884] xt_register_table+0x238/0x590 [ 22.934723][ T1884] ? local_bh_enable+0x30/0x30 [ 22.939469][ T1884] arpt_register_table+0x161/0x6d0 [ 22.944558][ T1884] ? local_bh_enable+0x30/0x30 [ 22.949425][ T1884] ? __should_failslab+0x90/0x160 [ 22.954430][ T1884] ? arpt_alloc_initial_table+0x7b/0x630 [ 22.960052][ T1884] ? kasan_kmalloc+0x9/0x10 [ 22.964540][ T1884] ? memset+0x31/0x40 [ 22.968497][ T1884] ? arpt_alloc_initial_table+0x512/0x630 [ 22.974191][ T1884] arptable_filter_table_init+0x7b/0xa0 [ 22.979711][ T1884] xt_find_table_lock+0x251/0x3a0 [ 22.984712][ T1884] xt_request_find_table_lock+0x27/0xc0 [ 22.990358][ T1884] get_info+0x1c3/0x530 [ 22.994504][ T1884] ? __do_replace+0xc60/0xc60 [ 22.999155][ T1884] ? __rcu_read_lock+0x50/0x50 [ 23.003895][ T1884] ? selinux_capable+0x39/0x50 [ 23.008639][ T1884] ? security_capable+0xb2/0xd0 [ 23.013462][ T1884] ? ns_capable+0x8c/0xe0 [ 23.017764][ T1884] do_arpt_get_ctl+0x151/0x9a0 [ 23.022599][ T1884] ? do_swap_page+0x1530/0x1530 [ 23.027421][ T1884] ? compat_do_arpt_set_ctl+0x2440/0x2440 [ 23.033112][ T1884] ? __kasan_check_write+0x14/0x20 [ 23.038202][ T1884] ? mutex_lock+0xa6/0x110 [ 23.042590][ T1884] ? __module_get+0x140/0x140 [ 23.047240][ T1884] ? avc_has_perm_noaudit+0x3f0/0x3f0 [ 23.052587][ T1884] nf_getsockopt+0x28e/0x2b0 [ 23.057150][ T1884] ip_getsockopt+0x13c/0x230 [ 23.061714][ T1884] ? compat_ip_setsockopt+0x110/0x110 [ 23.067068][ T1884] ? __up_read+0x6f/0x1b0 [ 23.071380][ T1884] tcp_getsockopt+0xbe/0xd0 [ 23.075865][ T1884] sock_common_getsockopt+0x99/0xb0 [ 23.081042][ T1884] __sys_getsockopt+0x1f4/0x360 [ 23.085865][ T1884] __x64_sys_getsockopt+0xbf/0xd0 [ 23.090862][ T1884] do_syscall_64+0xc0/0x100 [ 23.095355][ T1884] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.101222][ T1884] RIP: 0033:0x44494a [ 23.105144][ T1884] Code: b8 10 01 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 8d df fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 6a df fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 23.124733][ T1884] RSP: 002b:00007ffdd17792c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 [ 23.133390][ T1884] RAX: ffffffffffffffda RBX: 00000000004a31c9 RCX: 000000000044494a [ 23.141338][ T1884] RDX: 0000000000000060 RSI: 0000000000000000 RDI: 0000000000000003 [ 23.149283][ T1884] RBP: 0000000000000003 R08: 00007ffdd17792dc R09: 0000000000000000 [ 23.157315][ T1884] R10: 00000000006cd448 R11: 0000000000000246 R12: 00000000006ccdc8 [ 23.165264][ T1884] R13: 0000000000402dd0 R14: 0000000000000000 R15: 0000000000000000 [ 24.292074][ T1884] Shutting down cpus with NMI [ 24.297386][ T1884] Kernel Offset: disabled [ 24.301702][ T1884] Rebooting in 86400 seconds..