Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 10.850648] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 11.969939] random: crng init done Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.46' (ECDSA) to the list of known hosts. 2019/09/09 12:08:22 parsed 1 programs 2019/09/09 12:08:24 executed programs: 0 syzkaller login: [ 32.457750] audit: type=1400 audit(1568030904.680:5): avc: denied { associate } for pid=2070 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 [ 32.483212] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 32.494313] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 32.512276] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 32.521844] ------------[ cut here ]------------ [ 32.526994] WARNING: CPU: 0 PID: 2224 at net/xfrm/xfrm_policy.c:797 xfrm_policy_insert+0x6fa/0x10e0 [ 32.536580] Kernel panic - not syncing: panic_on_warn set ... [ 32.536580] [ 32.544166] CPU: 0 PID: 2224 Comm: syz-executor.0 Not tainted 4.9.191+ #0 [ 32.551263] ffff8801c95c73b0 ffffffff81b67171 0000000000000000 ffffffff82a3b340 [ 32.559883] 00000000ffffffff 0000000000000000 0000000000000009 ffff8801c95c7490 [ 32.568615] ffffffff813ff0ca 0000000041b58ab3 ffffffff82e32ec5 ffffffff813feef1 [ 32.577070] Call Trace: [ 32.579799] [<000000001831a2eb>] dump_stack+0xc1/0x120 [ 32.585482] [<00000000545ac1b1>] panic+0x1d9/0x3bd [ 32.591291] [<0000000051b1d35b>] ? add_taint.cold+0x16/0x16 [ 32.597214] [<0000000061696dc9>] ? __debug_object_init+0x193/0x8b0 [ 32.603980] [<00000000a3612735>] ? __warn.cold+0x14/0x2f [ 32.609522] [<00000000e86a8338>] ? xfrm_policy_insert+0x6fa/0x10e0 [ 32.616043] [<00000000fd153d04>] __warn.cold+0x2f/0x2f [ 32.621610] [<00000000c2ebce6a>] warn_slowpath_null+0x2d/0x40 [ 32.628327] [<00000000e86a8338>] xfrm_policy_insert+0x6fa/0x10e0 [ 32.634873] [<00000000af8d59ba>] xfrm_add_policy+0x23c/0x4b0 [ 32.641319] [<00000000fa8cc21c>] ? xfrm_add_acquire+0x9c0/0x9c0 [ 32.648146] [<0000000005804fd7>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 32.655850] [<00000000a8b635c1>] ? ___ratelimit+0x55/0x413 [ 32.661695] [<00000000042db52e>] ? nla_parse+0x15f/0x1c0 [ 32.668023] [<00000000fa8cc21c>] ? xfrm_add_acquire+0x9c0/0x9c0 [ 32.674272] [<00000000bf678f64>] xfrm_user_rcv_msg+0x32c/0x5e0 [ 32.680630] [<000000003f7a681e>] ? xfrm_dump_sa_done+0xe0/0xe0 [ 32.686865] [<00000000436b424d>] ? trace_hardirqs_on+0x10/0x10 [ 32.693056] [<00000000b9cc443c>] ? __lock_acquire+0x5e0/0x4390 [ 32.699668] [<00000000cbf592c2>] ? check_preemption_disabled+0x3c/0x200 [ 32.707490] [<00000000e58037f4>] ? mutex_trylock+0x3f0/0x3f0 [ 32.713797] [<0000000074c6c4e1>] netlink_rcv_skb+0xd4/0x2e0 [ 32.719921] [<000000003f7a681e>] ? xfrm_dump_sa_done+0xe0/0xe0 [ 32.726987] [<000000004fb221df>] xfrm_netlink_rcv+0x70/0x90 [ 32.733403] [<00000000c5f68fcd>] netlink_unicast+0x4c6/0x6d0 [ 32.739655] [<00000000186d5bf2>] ? netlink_sendskb+0x60/0x60 [ 32.745747] [<000000008e7b4518>] netlink_sendmsg+0x6b6/0xc80 [ 32.751631] [<000000005ffc736c>] ? nlmsg_notify+0x170/0x170 [ 32.757425] [<00000000f6c600d6>] ? selinux_socket_sendmsg+0x3f/0x50 [ 32.763946] [<00000000cc72a51d>] ? security_socket_sendmsg+0x8f/0xc0 [ 32.770523] [<000000005ffc736c>] ? nlmsg_notify+0x170/0x170 [ 32.776402] [<000000003a329504>] sock_sendmsg+0xbe/0x110 [ 32.781932] [<0000000043821e95>] ___sys_sendmsg+0x78b/0x8b0 [ 32.787727] [<00000000279998e9>] ? copy_msghdr_from_user+0x550/0x550 [ 32.794374] [<000000007e14f614>] ? do_futex+0x161/0x1a70 [ 32.800004] [<0000000081099382>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 32.806752] [<00000000cbf592c2>] ? check_preemption_disabled+0x3c/0x200 [ 32.813586] [<00000000cbf592c2>] ? check_preemption_disabled+0x3c/0x200 [ 32.820529] [<00000000cbf592c2>] ? check_preemption_disabled+0x3c/0x200 [ 32.827366] [<000000008d39a3ef>] ? __fget+0x208/0x370 [ 32.832664] [<000000002ae4bfd9>] ? __fget+0x22f/0x370 [ 32.837931] [<00000000b5ca1d1e>] ? __fget+0x47/0x370 [ 32.843164] [<00000000c5547af7>] ? __fget_light+0x172/0x1f0 [ 32.849159] [<000000005f581355>] ? __fdget+0x1b/0x20 [ 32.854483] [<00000000e745bc78>] ? sockfd_lookup_light+0xb4/0x160 [ 32.860843] [<00000000fdc0eb46>] __sys_sendmsg+0xc8/0x170 [ 32.866468] [<0000000011324a5e>] ? SyS_shutdown+0x1a0/0x1a0 [ 32.872266] [<00000000b1c86f26>] ? SyS_clock_gettime+0x118/0x1f0 [ 32.879456] [<00000000ec470050>] ? SyS_clock_settime+0x230/0x230 [ 32.885691] [<000000000bb2318b>] SyS_sendmsg+0x2d/0x50 [ 32.891107] [<00000000c6cea0b7>] ? __sys_sendmsg+0x170/0x170 [ 32.897434] [<000000001363333a>] do_syscall_64+0x1ad/0x5c0 [ 32.903156] [<00000000f29008f2>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 32.911157] Kernel Offset: disabled [ 32.914813] Rebooting in 86400 seconds..