[....] 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. [ 34.482374] audit: type=1800 audit(1542299886.663:33): pid=6029 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=2432 res=0 [ 34.503382] audit: type=1800 audit(1542299886.663:34): pid=6029 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=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 38.396492] audit: type=1400 audit(1542299890.573:35): avc: denied { map } for pid=6207 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 '10.128.0.115' (ECDSA) to the list of known hosts. executing program [ 45.142695] audit: type=1400 audit(1542299897.323:36): avc: denied { map } for pid=6220 comm="syz-executor600" path="/root/syz-executor600057269" 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 [ 45.148578] netlink: 'syz-executor600': attribute type 3 has an invalid length. [ 45.169372] audit: type=1400 audit(1542299897.323:37): avc: denied { create } for pid=6220 comm="syz-executor600" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 45.177090] netlink: 'syz-executor600': attribute type 2 has an invalid length. [ 45.201685] audit: type=1400 audit(1542299897.323:38): avc: denied { write } for pid=6220 comm="syz-executor600" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 45.209230] WARNING: CPU: 1 PID: 6220 at net/netfilter/nfnetlink_cttimeout.c:478 cttimeout_default_get+0x1df/0xb30 [ 45.243109] Kernel panic - not syncing: panic_on_warn set ... [ 45.248976] CPU: 1 PID: 6220 Comm: syz-executor600 Not tainted 4.20.0-rc2+ #114 [ 45.256421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.265770] Call Trace: [ 45.268339] dump_stack+0x244/0x39d [ 45.271966] ? dump_stack_print_info.cold.1+0x20/0x20 [ 45.277144] panic+0x2ad/0x55c [ 45.280319] ? add_taint.cold.5+0x16/0x16 [ 45.284451] ? __warn.cold.8+0x5/0x45 [ 45.288233] ? __warn+0xe8/0x1d0 [ 45.291588] ? cttimeout_default_get+0x1df/0xb30 [ 45.296322] __warn.cold.8+0x20/0x45 [ 45.300010] ? rcu_softirq_qs+0x20/0x20 [ 45.303963] ? cttimeout_default_get+0x1df/0xb30 [ 45.308701] report_bug+0x254/0x2d0 [ 45.312377] do_error_trap+0x11b/0x200 [ 45.316264] do_invalid_op+0x36/0x40 [ 45.319960] ? cttimeout_default_get+0x1df/0xb30 [ 45.324699] invalid_op+0x14/0x20 [ 45.328143] RIP: 0010:cttimeout_default_get+0x1df/0xb30 [ 45.333494] Code: 00 0f 87 8d 00 00 00 41 80 ff 06 0f 84 94 07 00 00 41 80 ff 11 0f 84 6c 07 00 00 41 80 ff 01 0f 84 44 07 00 00 e8 91 f1 20 fb <0f> 0b 41 bd a1 ff ff ff eb 06 41 bd a1 ff ff ff e8 7c f1 20 fb 48 [ 45.352386] RSP: 0018:ffff8881d84172b0 EFLAGS: 00010293 [ 45.357738] RAX: ffff8881d223e680 RBX: ffffffff88bf58e0 RCX: ffffffff865e961c [ 45.365010] RDX: 0000000000000000 RSI: ffffffff865e964f RDI: 0000000000000001 [ 45.372263] RBP: ffff8881d84173c0 R08: ffff8881d223e680 R09: ffffed103b5e5b67 [ 45.379515] R10: 0000000000000002 R11: ffff8881daf2db3b R12: 0000000000000088 [ 45.386800] R13: ffff8881c3b7aa40 R14: 0000000000000017 R15: 0000000000000088 [ 45.394071] ? cttimeout_default_get+0x1ac/0xb30 [ 45.398809] ? cttimeout_default_get+0x1df/0xb30 [ 45.403557] ? lock_downgrade+0x900/0x900 [ 45.407689] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 45.412431] ? __lock_is_held+0xb5/0x140 [ 45.416513] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 45.421255] nfnetlink_rcv_msg+0xdd3/0x10c0 [ 45.425589] ? nfnetlink_bind+0x3b0/0x3b0 [ 45.429724] ? __netlink_lookup+0x5b6/0xa90 [ 45.434035] ? find_held_lock+0x36/0x1c0 [ 45.438115] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.443666] ? cred_has_capability+0x1e1/0x430 [ 45.448228] ? selinux_ipv4_output+0x50/0x50 [ 45.452621] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 45.457533] ? kasan_check_read+0x11/0x20 [ 45.461675] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 45.466945] ? rcu_softirq_qs+0x20/0x20 [ 45.470912] netlink_rcv_skb+0x172/0x440 [ 45.474974] ? nfnetlink_bind+0x3b0/0x3b0 [ 45.479113] ? netlink_ack+0xb80/0xb80 [ 45.482983] ? __netlink_ns_capable+0x100/0x130 [ 45.487728] nfnetlink_rcv+0x1c0/0x4d0 [ 45.491642] ? nfnetlink_rcv_batch+0x19b0/0x19b0 [ 45.496396] ? kasan_check_write+0x14/0x20 [ 45.500613] netlink_unicast+0x5a5/0x760 [ 45.504660] ? netlink_attachskb+0x9a0/0x9a0 [ 45.509484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.515012] netlink_sendmsg+0xa18/0xfc0 [ 45.519060] ? netlink_unicast+0x760/0x760 [ 45.523281] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.528800] ? security_socket_sendmsg+0x94/0xc0 [ 45.533552] ? netlink_unicast+0x760/0x760 [ 45.537787] sock_sendmsg+0xd5/0x120 [ 45.541506] ___sys_sendmsg+0x7fd/0x930 [ 45.545477] ? find_held_lock+0x36/0x1c0 [ 45.549523] ? copy_msghdr_from_user+0x580/0x580 [ 45.554263] ? zap_class+0x640/0x640 [ 45.557958] ? zap_class+0x640/0x640 [ 45.561653] ? zap_class+0x640/0x640 [ 45.565351] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.570867] ? __fget_light+0x2e9/0x430 [ 45.574825] ? fget_raw+0x20/0x20 [ 45.578262] ? __do_page_fault+0x620/0xe60 [ 45.582479] ? lock_downgrade+0x900/0x900 [ 45.586639] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 45.591552] ? kasan_check_read+0x11/0x20 [ 45.595685] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.601207] ? sockfd_lookup_light+0xc5/0x160 [ 45.605686] __sys_sendmsg+0x11d/0x280 [ 45.609555] ? __ia32_sys_shutdown+0x80/0x80 [ 45.613945] ? up_read_non_owner+0x100/0x100 [ 45.618338] ? do_syscall_64+0x9a/0x820 [ 45.622295] ? do_syscall_64+0x9a/0x820 [ 45.626259] ? trace_hardirqs_off_caller+0x310/0x310 [ 45.631347] __x64_sys_sendmsg+0x78/0xb0 [ 45.635391] do_syscall_64+0x1b9/0x820 [ 45.639261] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 45.644606] ? syscall_return_slowpath+0x5e0/0x5e0 [ 45.649513] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.654336] ? trace_hardirqs_on_caller+0x310/0x310 [ 45.659336] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 45.664334] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.669852] ? prepare_exit_to_usermode+0x291/0x3b0 [ 45.674869] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.679693] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.684869] RIP: 0033:0x4400d9 [ 45.688045] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 45.706932] RSP: 002b:00007fffdcc75098 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 45.714789] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 45.722041] RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 [ 45.729305] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 45.736556] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 45.743827] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 45.752173] Kernel Offset: disabled [ 45.755833] Rebooting in 86400 seconds..