[....] Starting enhanced syslogd: rsyslogd[ 15.761722] audit: type=1400 audit(1518592697.015:5): avc: denied { syslog } for pid=3987 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[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.433127] audit: type=1400 audit(1518592699.686:6): avc: denied { map } for pid=4126 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 '10.128.0.45' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 24.737004] audit: type=1400 audit(1518592705.990:7): avc: denied { map } for pid=4140 comm="syzkaller232283" path="/root/syzkaller232283514" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 37.389670] WARNING: CPU: 0 PID: 9447 at net/xfrm/xfrm_policy.c:753 xfrm_policy_insert+0x883/0x1140 [ 37.399095] Kernel panic - not syncing: panic_on_warn set ... [ 37.399095] [ 37.406556] CPU: 0 PID: 9447 Comm: syzkaller232283 Not tainted 4.16.0-rc1+ #225 [ 37.414009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.423376] Call Trace: [ 37.425993] dump_stack+0x194/0x257 [ 37.429666] ? arch_local_irq_restore+0x53/0x53 [ 37.434365] ? vsnprintf+0x1ed/0x1900 executing program [ 37.438199] panic+0x1e4/0x41c [ 37.441417] ? refcount_error_report+0x214/0x214 [ 37.446192] ? show_regs_print_info+0x18/0x18 [ 37.450861] ? mark_held_locks+0xaf/0x100 [ 37.455037] ? __warn+0x1c1/0x200 [ 37.458508] ? xfrm_policy_insert+0x883/0x1140 [ 37.464493] __warn+0x1dc/0x200 [ 37.467786] ? xfrm_policy_insert+0x883/0x1140 [ 37.472387] report_bug+0x211/0x2d0 [ 37.476037] fixup_bug.part.11+0x37/0x80 [ 37.480107] do_error_trap+0x2d7/0x3e0 [ 37.483997] ? check_noncircular+0x20/0x20 [ 37.488239] ? math_error+0x400/0x400 [ 37.492056] ? lock_acquire+0x1d5/0x580 [ 37.496030] ? lock_acquire+0x1d5/0x580 [ 37.500031] ? xfrm_policy_insert+0xc9/0x1140 [ 37.504548] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.509403] do_invalid_op+0x1b/0x20 [ 37.513120] invalid_op+0x22/0x40 [ 37.516584] RIP: 0010:xfrm_policy_insert+0x883/0x1140 [ 37.521778] RSP: 0018:ffff8801cee97250 EFLAGS: 00010293 [ 37.527163] RAX: ffff8801c6b7a380 RBX: ffff8801c6a6d240 RCX: ffffffff84bc7033 [ 37.534449] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c6a6d460 [ 37.541732] RBP: ffff8801cee973e0 R08: 0000000000000000 R09: 0000000000000004 [ 37.549020] R10: ffff8801cee97108 R11: 0000000000000004 R12: dffffc0000000000 [ 37.556309] R13: 0000000000000000 R14: 000000000000007f R15: 0000000000000000 [ 37.563613] ? xfrm_policy_insert+0x883/0x1140 [ 37.568291] ? policy_hash_bysel+0xe30/0xe30 [ 37.572721] ? cred_has_capability+0x1a0/0x3d0 [ 37.577328] ? selinux_ipv4_output+0x40/0x40 [ 37.581761] ? memcpy+0x45/0x50 [ 37.585067] ? copy_from_user_policy+0x110/0x2b0 [ 37.589838] ? xfrm_policy_construct+0x39e/0x560 [ 37.594606] ? verify_newpolicy_info.isra.11+0x60/0x90 [ 37.599910] xfrm_add_policy+0x3dc/0x8a0 [ 37.604817] ? xfrm_policy_construct+0x560/0x560 [ 37.609630] ? nla_validate+0x1c0/0x1c0 [ 37.613617] ? __netlink_ns_capable+0xe1/0x120 [ 37.618208] ? xfrm_policy_construct+0x560/0x560 [ 37.622976] xfrm_user_rcv_msg+0x41c/0x860 [ 37.627226] ? xfrm_dump_sa_done+0xe0/0xe0 [ 37.631467] ? netlink_deliver_tap+0x2c0/0xf90 [ 37.636055] ? lock_downgrade+0x980/0x980 [ 37.640188] ? lock_release+0xa40/0xa40 [ 37.644193] ? __might_fault+0x110/0x1d0 [ 37.648265] netlink_rcv_skb+0x14b/0x380 [ 37.652334] ? xfrm_dump_sa_done+0xe0/0xe0 [ 37.656583] ? netlink_ack+0xa10/0xa10 [ 37.660490] ? netlink_skb_destructor+0x1d0/0x1d0 [ 37.665343] xfrm_netlink_rcv+0x6f/0x90 [ 37.669312] netlink_unicast+0x4c4/0x6b0 [ 37.673375] ? netlink_attachskb+0x8a0/0x8a0 [ 37.677795] ? security_netlink_send+0x81/0xb0 [ 37.682382] netlink_sendmsg+0xa4a/0xe60 [ 37.686461] ? netlink_unicast+0x6b0/0x6b0 [ 37.690700] ? security_socket_sendmsg+0x89/0xb0 [ 37.695446] ? netlink_unicast+0x6b0/0x6b0 [ 37.699684] sock_sendmsg+0xca/0x110 [ 37.703405] ___sys_sendmsg+0x767/0x8b0 [ 37.707374] ? copy_msghdr_from_user+0x590/0x590 [ 37.712142] ? __fget_light+0x2b2/0x3c0 [ 37.716102] ? fget_raw+0x20/0x20 [ 37.719546] ? __sched_text_start+0x8/0x8 [ 37.723709] ? __do_page_fault+0x5f7/0xc90 [ 37.727945] ? lock_downgrade+0x980/0x980 [ 37.732095] __sys_sendmsg+0xe5/0x210 [ 37.735880] ? __sys_sendmsg+0xe5/0x210 [ 37.739839] ? SyS_shutdown+0x290/0x290 [ 37.743801] ? schedule+0xf5/0x430 [ 37.747330] ? __schedule+0x2040/0x2040 [ 37.751291] ? __do_page_fault+0x3d6/0xc90 [ 37.755508] ? lock_downgrade+0x980/0x980 [ 37.759649] ? do_raw_spin_trylock+0x190/0x190 [ 37.764223] SyS_sendmsg+0x2d/0x50 [ 37.767746] ? __sys_sendmsg+0x210/0x210 [ 37.771788] do_syscall_64+0x282/0x940 [ 37.775661] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 37.781198] ? syscall_return_slowpath+0x550/0x550 [ 37.786127] ? syscall_return_slowpath+0x2ac/0x550 [ 37.791055] ? retint_user+0x18/0x18 [ 37.794759] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.799590] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 37.804762] RIP: 0033:0x446cf9 [ 37.807951] RSP: 002b:00007fb756bb7db8 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 37.815649] RAX: ffffffffffffffda RBX: 00000000006e168c RCX: 0000000000446cf9 [ 37.822895] RDX: 0000000000000000 RSI: 000000002014dfc8 RDI: 0000000000000009 [ 37.830145] RBP: 00000000006e1688 R08: 00007fb756bb8700 R09: 0000000000000000 [ 37.837407] R10: 00007fb756bb8700 R11: 0000000000000293 R12: 0000000000000000 [ 37.844655] R13: 00007ffe45c5ddaf R14: 00007fb756bb89c0 R15: 0000000000000008 [ 37.852683] Dumping ftrace buffer: [ 37.856455] (ftrace buffer empty) [ 37.860150] Kernel Offset: disabled [ 37.863756] Rebooting in 86400 seconds..