[....] Starting enhanced syslogd: rsyslogd[ 13.465667] audit: type=1400 audit(1568030920.323:4): avc: denied { syslog } for pid=1914 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.75' (ECDSA) to the list of known hosts. 2019/09/09 12:09:04 parsed 1 programs 2019/09/09 12:09:06 executed programs: 0 syzkaller login: [ 40.288074] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 40.299429] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 40.322281] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 40.332229] ------------[ cut here ]------------ [ 40.341046] WARNING: CPU: 1 PID: 2242 at net/xfrm/xfrm_policy.c:770 xfrm_policy_insert+0x600/0xf20() [ 40.350685] Kernel panic - not syncing: panic_on_warn set ... [ 40.350685] [ 40.358041] CPU: 1 PID: 2242 Comm: syz-executor.0 Not tainted 4.4.174+ #4 [ 40.365271] 0000000000000000 2e1528dd01320b4c ffff8801d28d7428 ffffffff81aad1a1 [ 40.373685] 0000000000000000 ffffffff82835ee0 ffffffff82a9b140 0000000000000302 [ 40.381968] ffffffff82548f00 ffff8801d28d7508 ffffffff813a48c2 0000000041b58ab3 [ 40.390028] Call Trace: [ 40.392727] [] dump_stack+0xc1/0x120 [ 40.398153] [] ? xfrm_policy_insert+0x600/0xf20 [ 40.404606] [] panic+0x1b9/0x37b [ 40.409617] [] ? add_taint.cold+0x16/0x16 [ 40.415408] [] ? __debug_object_init+0x193/0x880 [ 40.421956] [] ? warn_slowpath_common.cold+0x5/0x20 [ 40.428620] [] warn_slowpath_common.cold+0x20/0x20 [ 40.435190] [] warn_slowpath_null+0x2a/0x30 [ 40.441149] [] xfrm_policy_insert+0x600/0xf20 [ 40.447285] [] xfrm_add_policy+0x23c/0x4d0 [ 40.453211] [] ? xfrm_add_acquire+0x9c0/0x9c0 [ 40.459383] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 40.466823] [] ? nla_parse+0x15f/0x1c0 [ 40.472481] [] ? xfrm_add_acquire+0x9c0/0x9c0 [ 40.478621] [] xfrm_user_rcv_msg+0x37c/0x630 [ 40.484824] [] ? xfrm_dump_sa_done+0xa0/0xa0 [ 40.490877] [] ? trace_hardirqs_on+0x10/0x10 [ 40.496930] [] ? __lock_acquire+0xa4f/0x4f50 [ 40.503514] [] ? mutex_trylock+0x500/0x500 [ 40.509731] [] netlink_rcv_skb+0xd4/0x2e0 [ 40.515639] [] ? xfrm_dump_sa_done+0xa0/0xa0 [ 40.521806] [] xfrm_netlink_rcv+0x70/0x90 [ 40.528096] [] netlink_unicast+0x4d7/0x700 [ 40.533977] [] ? netlink_sendskb+0x60/0x60 [ 40.539852] [] netlink_sendmsg+0x6b6/0xc80 [ 40.545974] [] ? nlmsg_notify+0x170/0x170 [ 40.551774] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 40.558415] [] ? security_socket_sendmsg+0x8f/0xc0 [ 40.564984] [] ? nlmsg_notify+0x170/0x170 [ 40.570775] [] sock_sendmsg+0xbe/0x110 [ 40.576309] [] ___sys_sendmsg+0x769/0x890 [ 40.582199] [] ? copy_msghdr_from_user+0x550/0x550 [ 40.588776] [] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 40.595520] [] ? check_preemption_disabled+0x3c/0x200 [ 40.602372] [] ? check_preemption_disabled+0x3c/0x200 [ 40.609355] [] ? __fget+0x13b/0x370 [ 40.614630] [] ? __fget+0x162/0x370 [ 40.619949] [] ? __fget+0x47/0x370 [ 40.625151] [] ? __fget_light+0xa3/0x1f0 [ 40.630862] [] ? __fdget+0x1b/0x20 [ 40.636046] [] __sys_sendmsg+0xc5/0x160 [ 40.641965] [] ? SyS_shutdown+0x1a0/0x1a0 [ 40.647757] [] ? SyS_clock_gettime+0x118/0x1e0 [ 40.653987] [] ? SyS_clock_settime+0x220/0x220 [ 40.660427] [] SyS_sendmsg+0x2d/0x50 [ 40.665789] [] entry_SYSCALL_64_fastpath+0x1e/0x9a [ 40.673418] Kernel Offset: disabled [ 40.677093] Rebooting in 86400 seconds..