[....] Starting enhanced syslogd: rsyslogd[ 17.299507] audit: type=1400 audit(1521810154.262:5): avc: denied { syslog } for pid=4085 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 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: [ 22.812616] audit: type=1400 audit(1521810159.775:6): avc: denied { map } for pid=4224 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 '10.128.0.56' (ECDSA) to the list of known hosts. [ 29.124436] audit: type=1400 audit(1521810166.087:7): avc: denied { map } for pid=4238 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/03/23 13:02:46 parsed 1 programs 2018/03/23 13:02:46 executed programs: 0 [ 29.383939] audit: type=1400 audit(1521810166.346:8): avc: denied { map } for pid=4238 comm="syz-execprog" path="/root/syzkaller-shm764576315" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 29.404191] IPVS: ftp: loaded support on port[0] = 21 [ 29.409576] audit: type=1400 audit(1521810166.346:9): avc: denied { sys_admin } for pid=4245 comm="syz-executor0" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 29.467085] audit: type=1400 audit(1521810166.427:10): avc: denied { sys_chroot } for pid=4247 comm="syz-executor0" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 29.469233] IPVS: ftp: loaded support on port[0] = 21 [ 29.491553] audit: type=1400 audit(1521810166.428:11): avc: denied { net_admin } for pid=4247 comm="syz-executor0" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 29.528877] IPVS: ftp: loaded support on port[0] = 21 [ 29.578120] WARNING: CPU: 0 PID: 4260 at mm/slab_common.c:1012 kmalloc_slab+0x5d/0x70 [ 29.583203] IPVS: ftp: loaded support on port[0] = 21 [ 29.586205] Kernel panic - not syncing: panic_on_warn set ... [ 29.586205] [ 29.586216] CPU: 0 PID: 4260 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #278 [ 29.586220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.586225] Call Trace: [ 29.617899] dump_stack+0x194/0x24d [ 29.621533] ? arch_local_irq_restore+0x53/0x53 [ 29.624423] IPVS: ftp: loaded support on port[0] = 21 [ 29.626194] ? vsnprintf+0x1ed/0x1900 [ 29.626211] panic+0x1e4/0x41c [ 29.638326] ? refcount_error_report+0x214/0x214 [ 29.643070] ? show_regs_print_info+0x18/0x18 [ 29.647569] ? __warn+0x1c1/0x200 [ 29.651025] ? kmalloc_slab+0x5d/0x70 [ 29.654817] __warn+0x1dc/0x200 [ 29.658089] ? kmalloc_slab+0x5d/0x70 [ 29.661886] report_bug+0x211/0x2d0 [ 29.662864] IPVS: ftp: loaded support on port[0] = 21 [ 29.665511] fixup_bug.part.11+0x37/0x80 [ 29.665521] do_error_trap+0x2d7/0x3e0 [ 29.678594] ? math_error+0x400/0x400 [ 29.682384] ? rcu_read_lock_held+0xa9/0xc0 [ 29.686698] ? xfrm_state_get_afinfo+0x138/0x280 [ 29.691464] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.696307] do_invalid_op+0x1b/0x20 [ 29.700015] invalid_op+0x1b/0x40 [ 29.702491] IPVS: ftp: loaded support on port[0] = 21 [ 29.703454] RIP: 0010:kmalloc_slab+0x5d/0x70 [ 29.703459] RSP: 0018:ffff8801afd1f2f0 EFLAGS: 00010246 [ 29.703469] RAX: 0000000000000000 RBX: 0000000020000018 RCX: ffffffff84ecd358 [ 29.725613] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000018 [ 29.732874] RBP: ffff8801afd1f2f0 R08: 0000000000000000 R09: 1ffff10035fa3e21 [ 29.740135] R10: ffff8801afd1f040 R11: 0000000000000001 R12: 0000000000000018 [ 29.741275] IPVS: ftp: loaded support on port[0] = 21 [ 29.747387] R13: ffff8801afd1f598 R14: 00000000014080c0 R15: ffff8801bd98f6c0 [ 29.747416] ? xfrm_add_sa+0x1b08/0x3440 [ 29.763890] __kmalloc+0x25/0x760 [ 29.767371] ? xfrm_get_mode.part.29+0x260/0x260 [ 29.772116] ? xfrm_find_algo+0x1c4/0x270 [ 29.776259] ? xfrm_add_sa+0x1b15/0x3440 [ 29.780317] xfrm_add_sa+0x1b15/0x3440 [ 29.784213] ? xfrm_send_state_notify+0x1c50/0x1c50 [ 29.789218] ? nla_parse+0x29a/0x3d0 [ 29.792932] ? nla_validate+0x1c0/0x1c0 [ 29.796893] ? __netlink_ns_capable+0xe1/0x120 [ 29.801457] ? xfrm_send_state_notify+0x1c50/0x1c50 [ 29.806447] xfrm_user_rcv_msg+0x41c/0x860 [ 29.810652] ? xfrm_user_rcv_msg+0x41c/0x860 [ 29.815041] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.819270] ? netlink_deliver_tap+0x2c0/0xf90 [ 29.823826] ? lock_downgrade+0x980/0x980 [ 29.827950] ? lock_release+0xa40/0xa40 [ 29.831927] netlink_rcv_skb+0x14b/0x380 [ 29.835959] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.840168] ? netlink_ack+0xa10/0xa10 [ 29.844035] ? netlink_skb_destructor+0x1d0/0x1d0 [ 29.848854] xfrm_netlink_rcv+0x6f/0x90 [ 29.852800] netlink_unicast+0x4c4/0x6b0 [ 29.856836] ? netlink_attachskb+0x8a0/0x8a0 [ 29.861222] ? security_netlink_send+0x81/0xb0 [ 29.865775] netlink_sendmsg+0xa4a/0xe60 [ 29.869813] ? netlink_unicast+0x6b0/0x6b0 [ 29.874033] ? security_socket_sendmsg+0x89/0xb0 [ 29.878759] ? netlink_unicast+0x6b0/0x6b0 [ 29.882967] sock_sendmsg+0xca/0x110 [ 29.886656] ___sys_sendmsg+0x767/0x8b0 [ 29.890607] ? copy_msghdr_from_user+0x590/0x590 [ 29.895336] ? __schedule+0x903/0x1ec0 [ 29.899198] ? __sched_text_start+0x8/0x8 [ 29.903328] ? __fget_light+0x2b2/0x3c0 [ 29.907276] ? fget_raw+0x20/0x20 [ 29.910707] ? __fd_install+0x288/0x740 [ 29.914655] ? get_unused_fd_flags+0x190/0x190 [ 29.919219] __sys_sendmsg+0xe5/0x210 [ 29.922991] ? __sys_sendmsg+0xe5/0x210 [ 29.926937] ? SyS_shutdown+0x290/0x290 [ 29.930890] ? exit_to_usermode_loop+0x8c/0x2f0 [ 29.935546] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.941060] SyS_sendmsg+0x2d/0x50 [ 29.944569] ? __sys_sendmsg+0x210/0x210 [ 29.948600] do_syscall_64+0x281/0x940 [ 29.952456] ? __do_page_fault+0xc90/0xc90 [ 29.956662] ? _raw_spin_unlock_irq+0x27/0x70 [ 29.961130] ? finish_task_switch+0x1c1/0x7e0 [ 29.965598] ? syscall_return_slowpath+0x550/0x550 [ 29.970499] ? syscall_return_slowpath+0x2ac/0x550 [ 29.975399] ? prepare_exit_to_usermode+0x350/0x350 [ 29.980386] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.985723] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.990542] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.995703] RIP: 0033:0x454239 [ 29.998863] RSP: 002b:00007f5746578c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 30.006539] RAX: ffffffffffffffda RBX: 00007f57465796d4 RCX: 0000000000454239 [ 30.013777] RDX: 0000000000000000 RSI: 000000002014f000 RDI: 0000000000000003 [ 30.021025] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 30.028269] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 30.035514] R13: 00000000000004ca R14: 00000000006f8390 R15: 0000000000000000 [ 30.043317] Dumping ftrace buffer: [ 30.046914] (ftrace buffer empty) [ 30.050593] Kernel Offset: disabled [ 30.054196] Rebooting in 86400 seconds..