[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 17.643059] audit: type=1400 audit(1519754637.635:6): avc: denied { map } for pid=4215 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.58' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.924878] audit: type=1400 audit(1519754643.917:7): avc: denied { map } for pid=4229 comm="syzkaller803108" path="/root/syzkaller803108663" 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 [ 23.930248] xt_connbytes: Forcing CT accounting to be enabled [ 23.959268] WARNING: CPU: 1 PID: 4229 at net/netfilter/xt_cluster.c:55 xt_cluster_mt+0x6c1/0x840 [ 23.968253] Kernel panic - not syncing: panic_on_warn set ... [ 23.968253] [ 23.975593] CPU: 1 PID: 4229 Comm: syzkaller803108 Not tainted 4.16.0-rc3+ #331 [ 23.983011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.992344] Call Trace: [ 23.994906] dump_stack+0x194/0x24d [ 23.998507] ? arch_local_irq_restore+0x53/0x53 [ 24.003151] ? vsnprintf+0x1ed/0x1900 [ 24.006927] panic+0x1e4/0x41c [ 24.010102] ? refcount_error_report+0x214/0x214 [ 24.014842] ? show_regs_print_info+0x18/0x18 [ 24.019322] ? __warn+0x1c1/0x200 [ 24.022750] ? xt_cluster_mt+0x6c1/0x840 [ 24.026789] __warn+0x1dc/0x200 [ 24.030051] ? xt_cluster_mt+0x6c1/0x840 [ 24.034091] report_bug+0x211/0x2d0 [ 24.037703] fixup_bug.part.11+0x37/0x80 [ 24.041735] do_error_trap+0x2d7/0x3e0 [ 24.045602] ? rt_add_uncached_list+0x1b7/0x240 [ 24.050246] ? math_error+0x400/0x400 [ 24.054026] ? nf_nat_setup_info+0x3c9/0xe00 [ 24.058415] ? ip_vs_in+0xb98/0x24d0 [ 24.062102] ? nf_nat_proto_clean+0x1b0/0x1b0 [ 24.066575] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.071399] do_invalid_op+0x1b/0x20 [ 24.075090] invalid_op+0x1b/0x40 [ 24.078516] RIP: 0010:xt_cluster_mt+0x6c1/0x840 [ 24.083155] RSP: 0018:ffff8801c15272d0 EFLAGS: 00010293 [ 24.088490] RAX: ffff8801b08ca300 RBX: 0000000000000000 RCX: ffffffff84a25581 [ 24.095732] RDX: 0000000000000000 RSI: ffff8801c1527478 RDI: ffff8801b12e4d2a [ 24.102974] RBP: ffff8801c15272e8 R08: 0000000000000000 R09: 0000000000000001 [ 24.110215] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801af98e698 [ 24.117465] R13: ffff8801b12e4cc0 R14: dffffc0000000000 R15: ffff8801c1527478 [ 24.124728] ? xt_cluster_mt+0x6c1/0x840 [ 24.128769] ipt_do_table+0xa91/0x19b0 [ 24.132652] ? nf_nat_setup_info+0xe00/0xe00 [ 24.137071] ? do_add_counters+0x550/0x550 [ 24.141282] ? nf_nat_ipv4_in_range+0xf0/0xf0 [ 24.145760] ? raw_send_hdrinc.isra.17+0xce0/0x1880 [ 24.150764] iptable_filter_hook+0x65/0x80 [ 24.155008] nf_hook_slow+0xba/0x1a0 [ 24.158737] raw_send_hdrinc.isra.17+0xf39/0x1880 [ 24.163652] ? raw_getsockopt+0xd0/0xd0 [ 24.167690] ? ip_route_output_key_hash+0x252/0x370 [ 24.172683] ? ip_route_output_key_hash_rcu+0x2f00/0x2f00 [ 24.178191] ? lock_release+0xa40/0xa40 [ 24.182146] ? raw_ioctl+0x240/0x240 [ 24.185838] ? xfrm_lookup_route+0x4f/0x1a0 [ 24.190144] raw_sendmsg+0x14cd/0x26b0 [ 24.194014] ? lock_acquire+0x9f/0x580 [ 24.197889] ? raw_send_hdrinc.isra.17+0x1880/0x1880 [ 24.202969] ? avc_has_perm+0x43e/0x680 [ 24.206917] ? avc_has_perm_noaudit+0x520/0x520 [ 24.211563] ? trace_hardirqs_off+0x10/0x10 [ 24.215864] ? avc_has_perm+0x35e/0x680 [ 24.219825] ? find_held_lock+0x35/0x1d0 [ 24.223875] ? sock_has_perm+0x2a4/0x420 [ 24.227913] ? selinux_secmark_relabel_packet+0xc0/0xc0 [ 24.233251] ? lock_release+0x9e2/0xa40 [ 24.237201] ? check_same_owner+0x320/0x320 [ 24.241494] ? __check_object_size+0x8b/0x530 [ 24.245967] inet_sendmsg+0x11f/0x5e0 [ 24.249739] ? __might_sleep+0x95/0x190 [ 24.253686] ? inet_create+0xf50/0xf50 [ 24.257549] ? selinux_socket_sendmsg+0x36/0x40 [ 24.262196] ? security_socket_sendmsg+0x89/0xb0 [ 24.266923] ? inet_create+0xf50/0xf50 [ 24.270786] sock_sendmsg+0xca/0x110 [ 24.274477] SYSC_sendto+0x361/0x5c0 [ 24.278165] ? SYSC_connect+0x4a0/0x4a0 [ 24.282121] ? __do_page_fault+0x5f7/0xc90 [ 24.286330] ? lock_downgrade+0x980/0x980 [ 24.290456] ? handle_mm_fault+0x465/0xb10 [ 24.294659] ? check_same_owner+0x320/0x320 [ 24.298965] ? up_read+0x1a/0x40 [ 24.302305] ? __do_page_fault+0x3d6/0xc90 [ 24.306517] ? mm_fault_error+0x2c0/0x2c0 [ 24.310639] ? move_addr_to_kernel+0x60/0x60 [ 24.315033] SyS_sendto+0x40/0x50 [ 24.318465] ? SyS_getpeername+0x30/0x30 [ 24.322502] do_syscall_64+0x281/0x940 [ 24.326361] ? __do_page_fault+0xc90/0xc90 [ 24.330569] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.335306] ? syscall_return_slowpath+0x550/0x550 [ 24.340208] ? syscall_return_slowpath+0x2ac/0x550 [ 24.345110] ? prepare_exit_to_usermode+0x350/0x350 [ 24.350101] ? retint_user+0x18/0x18 [ 24.353789] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.358609] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 24.363771] RIP: 0033:0x441b49 [ 24.366932] RSP: 002b:00007ffdbb8895c8 EFLAGS: 00000216 ORIG_RAX: 000000000000002c [ 24.374613] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000441b49 [ 24.381852] RDX: 0000000000000030 RSI: 0000000020ff7000 RDI: 0000000000000003 [ 24.389099] RBP: 00000000006cc018 R08: 000000002066354c R09: 0000000000000010 [ 24.396342] R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000403470 [ 24.403583] R13: 0000000000403500 R14: 0000000000000000 R15: 0000000000000000 [ 24.411407] Dumping ftrace buffer: [ 24.415012] (ftrace buffer empty) [ 24.418703] Kernel Offset: disabled [ 24.422303] Rebooting in 86400 seconds..