Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 9.938063] random: sshd: uninitialized urandom read (32 bytes read) [....] 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: [ 30.333151] random: sshd: uninitialized urandom read (32 bytes read) [ 30.346415] random: crng init done Warning: Permanently added '10.128.0.212' (ECDSA) to the list of known hosts. 2019/09/09 12:10:23 parsed 1 programs 2019/09/09 12:10:25 executed programs: 0 [ 46.234453] audit: type=1400 audit(1568031025.837:5): avc: denied { associate } for pid=2068 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 46.270654] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 46.280835] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 46.299123] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 46.308107] ------------[ cut here ]------------ [ 46.313144] WARNING: CPU: 0 PID: 2223 at net/xfrm/xfrm_policy.c:797 xfrm_policy_insert+0x701/0x1140 [ 46.322518] Kernel panic - not syncing: panic_on_warn set ... [ 46.322518] [ 46.330145] CPU: 0 PID: 2223 Comm: syz-executor.0 Not tainted 4.9.141+ #1 [ 46.337346] ffff8801cb6af398 ffffffff81b42e79 ffffffff82a38ce0 00000000ffffffff [ 46.345628] ffffffff82cb8900 0000000000000000 0000000000000009 ffff8801cb6af458 [ 46.353740] ffffffff813f7125 0000000041b58ab3 ffffffff82e2b62b ffffffff813f6f66 [ 46.361857] Call Trace: [ 46.364473] [] dump_stack+0xc1/0x128 [ 46.369830] [] panic+0x1bf/0x39f [ 46.374837] [] ? add_taint.cold.5+0x16/0x16 [ 46.380842] [] ? __warn.cold.8+0x14/0x2f [ 46.386582] [] ? xfrm_policy_insert+0x701/0x1140 [ 46.392986] [] __warn.cold.8+0x2f/0x2f [ 46.398513] [] warn_slowpath_null+0x2c/0x40 [ 46.404534] [] xfrm_policy_insert+0x701/0x1140 [ 46.410759] [] xfrm_add_policy+0x248/0x4f0 [ 46.416636] [] ? log_wakeup_reason.cold.1+0x13f/0x13f [ 46.423468] [] ? xfrm_add_acquire+0x9b0/0x9b0 [ 46.429602] [] ? ___ratelimit+0x53/0x401 [ 46.435489] [] ? nla_parse+0x1d3/0x240 [ 46.441023] [] ? xfrm_add_acquire+0x9b0/0x9b0 [ 46.447162] [] xfrm_user_rcv_msg+0x3c4/0x640 [ 46.453275] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 46.459329] [] ? avc_has_perm+0x1cc/0x3a0 [ 46.465125] [] ? avc_has_perm+0x9e/0x3a0 [ 46.471005] [] ? trace_hardirqs_on+0x10/0x10 [ 46.477188] [] ? check_preemption_disabled+0x3b/0x200 [ 46.484099] [] netlink_rcv_skb+0x145/0x370 [ 46.490014] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 46.496112] [] xfrm_netlink_rcv+0x6f/0x90 [ 46.502022] [] netlink_unicast+0x4d8/0x6d0 [ 46.508022] [] ? netlink_sendskb+0x50/0x50 [ 46.513896] [] netlink_sendmsg+0x694/0xc30 [ 46.519778] [] ? nlmsg_notify+0x140/0x140 [ 46.525575] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 46.532078] [] ? security_socket_sendmsg+0x8f/0xc0 [ 46.538643] [] ? nlmsg_notify+0x140/0x140 [ 46.544436] [] sock_sendmsg+0xbb/0x110 [ 46.549985] [] ___sys_sendmsg+0x6fc/0x840 [ 46.555926] [] ? trace_hardirqs_on+0x10/0x10 [ 46.561982] [] ? copy_msghdr_from_user+0x530/0x530 [ 46.568612] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 46.575416] [] ? check_preemption_disabled+0x3b/0x200 [ 46.582310] [] ? check_preemption_disabled+0x3b/0x200 [ 46.589290] [] ? __fget+0x214/0x3d0 [ 46.594565] [] ? __fget+0x23b/0x3d0 [ 46.600056] [] ? __fget+0x47/0x3d0 [ 46.605240] [] ? __fget_light+0x169/0x1f0 [ 46.611206] [] ? __fdget+0x18/0x20 [ 46.616393] [] ? sockfd_lookup_light+0xb6/0x160 [ 46.622704] [] __sys_sendmsg+0xd9/0x190 [ 46.628320] [] ? SyS_shutdown+0x1b0/0x1b0 [ 46.634126] [] ? SyS_clock_settime+0x220/0x220 [ 46.640351] [] SyS_sendmsg+0x2d/0x50 [ 46.645770] [] ? __sys_sendmsg+0x190/0x190 [ 46.651644] [] do_syscall_64+0x19f/0x550 [ 46.657507] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 46.665507] Kernel Offset: disabled [ 46.669266] Rebooting in 86400 seconds..