[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 34.074941] restorecond (6147) used greatest stack depth: 15232 bytes left [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 34.362850] audit: type=1800 audit(1542302894.545:33): pid=6057 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 [ 34.386069] audit: type=1800 audit(1542302894.545:34): pid=6057 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: [ 39.377635] audit: type=1400 audit(1542302899.565:35): avc: denied { map } for pid=6237 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 '10.128.10.12' (ECDSA) to the list of known hosts. executing program [ 46.081002] audit: type=1400 audit(1542302906.265:36): avc: denied { map } for pid=6250 comm="syz-executor561" path="/root/syz-executor561500889" 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 [ 46.086880] netlink: 'syz-executor561': attribute type 3 has an invalid length. [ 46.107444] audit: type=1400 audit(1542302906.265:37): avc: denied { create } for pid=6250 comm="syz-executor561" 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 [ 46.115075] netlink: 'syz-executor561': attribute type 2 has an invalid length. [ 46.139558] audit: type=1400 audit(1542302906.265:38): avc: denied { write } for pid=6250 comm="syz-executor561" 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 [ 46.147137] WARNING: CPU: 0 PID: 6250 at net/netfilter/nfnetlink_cttimeout.c:478 cttimeout_default_get+0x1df/0xb30 [ 46.181109] Kernel panic - not syncing: panic_on_warn set ... [ 46.186983] CPU: 0 PID: 6250 Comm: syz-executor561 Not tainted 4.20.0-rc2+ #114 [ 46.194411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.203743] Call Trace: [ 46.206317] dump_stack+0x244/0x39d [ 46.209940] ? dump_stack_print_info.cold.1+0x20/0x20 [ 46.215120] panic+0x2ad/0x55c [ 46.218295] ? add_taint.cold.5+0x16/0x16 [ 46.222427] ? __warn.cold.8+0x5/0x45 [ 46.226213] ? __warn+0xe8/0x1d0 [ 46.229563] ? cttimeout_default_get+0x1df/0xb30 [ 46.234310] __warn.cold.8+0x20/0x45 [ 46.238021] ? rcu_softirq_qs+0x20/0x20 [ 46.241977] ? cttimeout_default_get+0x1df/0xb30 [ 46.246716] report_bug+0x254/0x2d0 [ 46.250326] do_error_trap+0x11b/0x200 [ 46.254200] do_invalid_op+0x36/0x40 [ 46.257896] ? cttimeout_default_get+0x1df/0xb30 [ 46.262786] invalid_op+0x14/0x20 [ 46.266227] RIP: 0010:cttimeout_default_get+0x1df/0xb30 [ 46.271574] 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 [ 46.290457] RSP: 0018:ffff8881a71472b0 EFLAGS: 00010293 [ 46.295802] RAX: ffff8881ce59e3c0 RBX: ffffffff88bf58e0 RCX: ffffffff865e961c [ 46.303054] RDX: 0000000000000000 RSI: ffffffff865e964f RDI: 0000000000000001 [ 46.310305] RBP: ffff8881a71473c0 R08: ffff8881ce59e3c0 R09: ffffed103b5c5b67 [ 46.317558] R10: 0000000000000002 R11: ffff8881dae2db3b R12: 0000000000000088 [ 46.324828] R13: ffff8881bd782c80 R14: 0000000000000017 R15: 0000000000000088 [ 46.332093] ? cttimeout_default_get+0x1ac/0xb30 [ 46.336833] ? cttimeout_default_get+0x1df/0xb30 [ 46.341580] ? lock_downgrade+0x900/0x900 [ 46.345716] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 46.350458] ? __lock_is_held+0xb5/0x140 [ 46.354505] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 46.359248] nfnetlink_rcv_msg+0xdd3/0x10c0 [ 46.363560] ? nfnetlink_bind+0x3b0/0x3b0 [ 46.367692] ? __netlink_lookup+0x5b6/0xa90 [ 46.371999] ? find_held_lock+0x36/0x1c0 [ 46.376057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.381582] ? cred_has_capability+0x1e1/0x430 [ 46.386148] ? selinux_ipv4_output+0x50/0x50 [ 46.390716] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 46.395636] ? kasan_check_read+0x11/0x20 [ 46.399767] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 46.405028] ? rcu_softirq_qs+0x20/0x20 [ 46.408992] netlink_rcv_skb+0x172/0x440 [ 46.413034] ? nfnetlink_bind+0x3b0/0x3b0 [ 46.417166] ? netlink_ack+0xb80/0xb80 [ 46.421038] ? __netlink_ns_capable+0x100/0x130 [ 46.425693] nfnetlink_rcv+0x1c0/0x4d0 [ 46.429567] ? nfnetlink_rcv_batch+0x19b0/0x19b0 [ 46.434317] ? kasan_check_write+0x14/0x20 [ 46.438546] netlink_unicast+0x5a5/0x760 [ 46.442592] ? netlink_attachskb+0x9a0/0x9a0 [ 46.446990] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.452511] netlink_sendmsg+0xa18/0xfc0 [ 46.456561] ? netlink_unicast+0x760/0x760 [ 46.460780] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.466301] ? security_socket_sendmsg+0x94/0xc0 [ 46.471047] ? netlink_unicast+0x760/0x760 [ 46.475268] sock_sendmsg+0xd5/0x120 [ 46.478964] ___sys_sendmsg+0x7fd/0x930 [ 46.482931] ? find_held_lock+0x36/0x1c0 [ 46.486986] ? copy_msghdr_from_user+0x580/0x580 [ 46.491723] ? zap_class+0x640/0x640 [ 46.495422] ? zap_class+0x640/0x640 [ 46.499120] ? zap_class+0x640/0x640 [ 46.502817] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.508339] ? __fget_light+0x2e9/0x430 [ 46.512295] ? fget_raw+0x20/0x20 [ 46.515741] ? __do_page_fault+0x620/0xe60 [ 46.519959] ? lock_downgrade+0x900/0x900 [ 46.524093] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 46.529011] ? kasan_check_read+0x11/0x20 [ 46.533145] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.538665] ? sockfd_lookup_light+0xc5/0x160 [ 46.543144] __sys_sendmsg+0x11d/0x280 [ 46.547017] ? __ia32_sys_shutdown+0x80/0x80 [ 46.551411] ? up_read_non_owner+0x100/0x100 [ 46.555808] ? do_syscall_64+0x9a/0x820 [ 46.559764] ? do_syscall_64+0x9a/0x820 [ 46.563723] ? trace_hardirqs_off_caller+0x310/0x310 [ 46.568813] __x64_sys_sendmsg+0x78/0xb0 [ 46.572859] do_syscall_64+0x1b9/0x820 [ 46.576747] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 46.582094] ? syscall_return_slowpath+0x5e0/0x5e0 [ 46.587007] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.591847] ? trace_hardirqs_on_caller+0x310/0x310 [ 46.596850] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 46.601865] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.607388] ? prepare_exit_to_usermode+0x291/0x3b0 [ 46.612390] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.617245] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.622433] RIP: 0033:0x4400d9 [ 46.625628] 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 [ 46.644511] RSP: 002b:00007ffdf907feb8 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 46.652202] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 46.659454] RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 [ 46.666705] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 46.673957] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 46.681207] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 46.689566] Kernel Offset: disabled [ 46.693229] Rebooting in 86400 seconds..