[....] Starting enhanced syslogd: rsyslogd[ 11.083333] audit: type=1400 audit(1514637460.831:5): avc: denied { syslog } for pid=3035 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 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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.141795] audit: type=1400 audit(1514637467.889:6): avc: denied { map } for pid=3176 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 '10.128.15.236' (ECDSA) to the list of known hosts. executing program [ 24.330819] audit: type=1400 audit(1514637474.078:7): avc: denied { map } for pid=3190 comm="syzkaller535579" path="/root/syzkaller535579278" 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 [ 24.358671] device lo entered promiscuous mode [ 24.365851] WARNING: CPU: 1 PID: 3191 at net/core/stream.c:206 sk_stream_kill_queues+0x3c5/0x520 [ 24.374795] Kernel panic - not syncing: panic_on_warn set ... [ 24.374795] [ 24.382130] CPU: 1 PID: 3191 Comm: syzkaller535579 Not tainted 4.15.0-rc5+ #242 [ 24.389547] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.398888] Call Trace: [ 24.401468] dump_stack+0x194/0x257 [ 24.405069] ? arch_local_irq_restore+0x53/0x53 [ 24.409711] ? vsnprintf+0x1ed/0x1900 [ 24.413484] panic+0x1e4/0x41c [ 24.416645] ? refcount_error_report+0x214/0x214 [ 24.421369] ? show_regs_print_info+0x18/0x18 [ 24.425840] ? __warn+0x1c1/0x200 [ 24.429271] ? sk_stream_kill_queues+0x3c5/0x520 [ 24.433996] __warn+0x1dc/0x200 [ 24.437246] ? sk_stream_kill_queues+0x3c5/0x520 [ 24.441974] report_bug+0x211/0x2d0 [ 24.445576] fixup_bug.part.11+0x37/0x80 [ 24.449609] do_error_trap+0x2d7/0x3e0 [ 24.453465] ? kfree_skbmem+0xe2/0x1d0 [ 24.457346] ? math_error+0x400/0x400 [ 24.461134] ? sock_rfree+0x103/0x160 [ 24.464904] ? sk_clear_memalloc+0x140/0x140 [ 24.469291] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.474111] do_invalid_op+0x1b/0x20 [ 24.477793] invalid_op+0x22/0x40 [ 24.481216] RIP: 0010:sk_stream_kill_queues+0x3c5/0x520 [ 24.486543] RSP: 0018:ffff8801c8537238 EFLAGS: 00010293 [ 24.491875] RAX: ffff8801ca686380 RBX: ffff8801cbb1e040 RCX: ffffffff8424b785 [ 24.499113] RDX: 0000000000000000 RSI: ffffffff86540960 RDI: ffff8801cbb1e278 [ 24.506351] RBP: ffff8801c8537278 R08: 1ffff100390a6dd6 R09: 0000000000000000 [ 24.513591] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000b00 [ 24.520831] R13: ffff8801cbb1e230 R14: ffffffff8845a000 R15: ffff8801cbb1e178 [ 24.528083] ? sk_stream_kill_queues+0x3c5/0x520 [ 24.532815] ? sk_stream_kill_queues+0x3c5/0x520 [ 24.537547] inet_csk_destroy_sock+0x175/0x3f0 [ 24.542110] tcp_done+0x1e9/0x240 [ 24.545545] tcp_time_wait+0x613/0xa60 [ 24.549408] tcp_rcv_state_process+0x34b0/0x4830 [ 24.554136] ? __skb_clone+0x294/0xa60 [ 24.557997] ? tcp_finish_connect+0x410/0x410 [ 24.562462] ? find_held_lock+0x35/0x1d0 [ 24.566509] ? skb_clone+0x20d/0x480 [ 24.570193] ? __release_sock+0xca/0x360 [ 24.574227] ? skb_split+0x1310/0x1310 [ 24.578083] ? __lock_is_held+0xb6/0x140 [ 24.582130] ? mark_held_locks+0xaf/0x100 [ 24.586255] tcp_v6_do_rcv+0x739/0x11c0 [ 24.590198] ? tcp_v6_do_rcv+0x739/0x11c0 [ 24.594320] ? trace_hardirqs_on+0xd/0x10 [ 24.598441] __release_sock+0x124/0x360 [ 24.602392] release_sock+0xa4/0x2a0 [ 24.606076] ? __local_bh_enable_ip+0x121/0x230 [ 24.610714] ? __release_sock+0x360/0x360 [ 24.614829] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.619815] ? tcp_close+0x574/0xfc0 [ 24.623496] ? trace_hardirqs_on+0xd/0x10 [ 24.627611] ? __local_bh_enable_ip+0x121/0x230 [ 24.632253] tcp_close+0x57c/0xfc0 [ 24.635759] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.640753] tls_sk_proto_close+0x4f8/0x800 [ 24.645048] ? tcp_check_oom+0x500/0x500 [ 24.649081] ? tls_write_space+0x2c0/0x2c0 [ 24.653298] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 24.659156] ? ipv6_sock_ac_close+0x2e8/0x3e0 [ 24.663622] ? ipv6_sock_mc_close+0x148/0x1a0 [ 24.668087] ? ip_mc_drop_socket+0x1ce/0x230 [ 24.672468] inet_release+0xed/0x1c0 [ 24.676154] inet6_release+0x50/0x70 [ 24.679840] sock_release+0x8d/0x1e0 [ 24.683523] ? sock_alloc_file+0x560/0x560 [ 24.687727] sock_close+0x16/0x20 [ 24.691163] __fput+0x327/0x7e0 [ 24.694426] ? fput+0x140/0x140 [ 24.697684] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 24.703536] ? _raw_spin_unlock_irq+0x27/0x70 [ 24.708007] ____fput+0x15/0x20 [ 24.711258] task_work_run+0x199/0x270 [ 24.715119] ? task_work_cancel+0x210/0x210 [ 24.719414] ? _raw_spin_unlock+0x22/0x30 [ 24.723541] ? switch_task_namespaces+0x87/0xc0 [ 24.728187] do_exit+0x9bb/0x1ad0 [ 24.731617] ? mm_update_next_owner+0x930/0x930 [ 24.736260] ? __sched_text_start+0x8/0x8 [ 24.740381] ? dev_change_flags+0xf5/0x140 [ 24.744591] ? rtnl_unlock+0xe/0x10 [ 24.748188] ? devinet_ioctl+0x491/0x19c0 [ 24.752313] ? inet_ifa_byprefix+0x1e0/0x1e0 [ 24.756713] ? __schedule+0x2060/0x2060 [ 24.760659] ? sock_do_ioctl+0x73/0xb0 [ 24.764526] ? sock_ioctl+0x1e2/0x440 [ 24.768300] ? exit_to_usermode_loop+0x8c/0x310 [ 24.772957] ? trace_hardirqs_off+0xd/0x10 [ 24.777161] ? exit_to_usermode_loop+0x198/0x310 [ 24.781885] ? ioctl_preallocate+0x2b0/0x2b0 [ 24.786274] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 24.791780] ? selinux_capable+0x40/0x40 [ 24.795822] do_group_exit+0x149/0x400 [ 24.799677] ? prepare_exit_to_usermode+0x340/0x340 [ 24.804663] ? SyS_exit+0x30/0x30 [ 24.808088] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.813075] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.817804] SyS_exit_group+0x1d/0x20 [ 24.821584] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.826312] RIP: 0033:0x440839 [ 24.829470] RSP: 002b:00007ffc98c2e008 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 24.837145] RAX: ffffffffffffffda RBX: 0100000000000000 RCX: 0000000000440839 [ 24.844382] RDX: 0000000000440839 RSI: 000000002003b000 RDI: 0000000000000000 [ 24.851623] RBP: 00000000006cb018 R08: 000000000000001c R09: 00000000004002c8 [ 24.858861] R10: 000000000000001c R11: 0000000000000202 R12: 0000000000000000 [ 24.866098] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 24.873504] Dumping ftrace buffer: [ 24.877065] (ftrace buffer empty) [ 24.880747] Kernel Offset: disabled [ 24.884345] Rebooting in 86400 seconds..