[....] Starting enhanced syslogd: rsyslogd[ 10.800053] audit: type=1400 audit(1514626211.724:5): avc: denied { syslog } for pid=2995 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: [ 16.081974] audit: type=1400 audit(1514626217.006:6): avc: denied { map } for pid=3135 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 '10.128.0.8' (ECDSA) to the list of known hosts. executing program [ 22.263039] audit: type=1400 audit(1514626223.187:7): avc: denied { map } for pid=3150 comm="syzkaller691304" path="/root/syzkaller691304410" 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 [ 22.291381] device lo entered promiscuous mode [ 22.299789] WARNING: CPU: 0 PID: 3151 at net/core/stream.c:206 sk_stream_kill_queues+0x3c5/0x520 [ 22.308727] Kernel panic - not syncing: panic_on_warn set ... [ 22.308727] [ 22.316062] CPU: 0 PID: 3151 Comm: syzkaller691304 Not tainted 4.15.0-rc4-mm1+ #49 [ 22.323748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.333076] Call Trace: [ 22.335646] dump_stack+0x194/0x257 [ 22.339247] ? arch_local_irq_restore+0x53/0x53 [ 22.343889] ? vsnprintf+0x1ed/0x1900 [ 22.347663] panic+0x1e4/0x41c [ 22.350827] ? refcount_error_report+0x214/0x214 [ 22.355552] ? show_regs_print_info+0x18/0x18 [ 22.360020] ? __warn+0x1c1/0x200 [ 22.363446] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.368170] __warn+0x1dc/0x200 [ 22.371420] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.376146] report_bug+0x211/0x2d0 [ 22.379766] fixup_bug.part.11+0x37/0x80 [ 22.383797] do_error_trap+0x2d7/0x3e0 [ 22.387652] ? kfree_skbmem+0xe2/0x1d0 [ 22.391510] ? math_error+0x400/0x400 [ 22.395278] ? sock_rfree+0x103/0x160 [ 22.399051] ? sk_clear_memalloc+0x140/0x140 [ 22.403438] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 22.408254] do_invalid_op+0x1b/0x20 [ 22.411936] invalid_op+0x22/0x40 [ 22.415358] RIP: 0010:sk_stream_kill_queues+0x3c5/0x520 [ 22.420688] RSP: 0018:ffff8801c8fd7238 EFLAGS: 00010293 [ 22.426019] RAX: ffff8801ccb6c4c0 RBX: ffff8801ccc74040 RCX: ffffffff842cae35 [ 22.433262] RDX: 0000000000000000 RSI: ffffffff86540c60 RDI: ffff8801ccc74278 [ 22.440509] RBP: ffff8801c8fd7278 R08: 1ffff100391fadd6 R09: 0000000000000000 [ 22.447749] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000b00 [ 22.454992] R13: ffff8801ccc74230 R14: ffffffff88449ac0 R15: ffff8801ccc74178 [ 22.462256] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.466998] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.471743] inet_csk_destroy_sock+0x175/0x3f0 [ 22.476300] tcp_done+0x1e9/0x240 [ 22.479725] tcp_time_wait+0x60b/0xa60 [ 22.485247] tcp_rcv_state_process+0x34b0/0x4830 [ 22.490102] ? __skb_clone+0x294/0xa60 [ 22.493977] ? tcp_finish_connect+0x410/0x410 [ 22.498459] ? find_held_lock+0x35/0x1d0 [ 22.502509] ? skb_clone+0x20d/0x480 [ 22.506202] ? __release_sock+0xca/0x360 [ 22.510649] ? skb_split+0x1310/0x1310 [ 22.515899] ? __lock_is_held+0xb6/0x140 [ 22.520502] ? mark_held_locks+0xaf/0x100 [ 22.524634] tcp_v6_do_rcv+0x739/0x11b0 [ 22.528580] ? tcp_v6_do_rcv+0x739/0x11b0 [ 22.532705] ? trace_hardirqs_on+0xd/0x10 [ 22.536830] __release_sock+0x124/0x360 [ 22.540781] release_sock+0xa4/0x2a0 [ 22.544468] ? __local_bh_enable_ip+0x121/0x230 [ 22.549107] ? __release_sock+0x360/0x360 [ 22.553222] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.558212] ? tcp_close+0x574/0xfc0 [ 22.561903] ? trace_hardirqs_on+0xd/0x10 [ 22.566023] ? __local_bh_enable_ip+0x121/0x230 [ 22.570666] tcp_close+0x57c/0xfc0 [ 22.574696] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.580296] tls_sk_proto_close+0x4f8/0x800 [ 22.584593] ? tcp_check_oom+0x500/0x500 [ 22.588626] ? tls_write_space+0x2c0/0x2c0 [ 22.592832] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 22.598692] ? ipv6_sock_ac_close+0x2e8/0x3e0 [ 22.603157] ? ipv6_sock_mc_close+0x148/0x1a0 [ 22.607636] ? ip_mc_drop_socket+0x1ce/0x230 [ 22.612021] inet_release+0xed/0x1c0 [ 22.615708] inet6_release+0x50/0x70 [ 22.620089] sock_release+0x8d/0x1e0 [ 22.624837] ? sock_alloc_file+0x560/0x560 [ 22.629040] sock_close+0x16/0x20 [ 22.632464] __fput+0x327/0x7e0 [ 22.635719] ? fput+0x140/0x140 [ 22.638970] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 22.644824] ? _raw_spin_unlock_irq+0x27/0x70 [ 22.649311] ____fput+0x15/0x20 [ 22.652568] task_work_run+0x199/0x270 [ 22.656430] ? task_work_cancel+0x210/0x210 [ 22.660721] ? _raw_spin_unlock+0x22/0x30 [ 22.664849] ? switch_task_namespaces+0x87/0xc0 [ 22.669492] do_exit+0x9bb/0x1ad0 [ 22.672939] ? mm_update_next_owner+0x930/0x930 [ 22.677584] ? __sched_text_start+0x8/0x8 [ 22.681701] ? dev_change_flags+0xf5/0x140 [ 22.685910] ? rtnl_unlock+0xe/0x10 [ 22.689941] ? devinet_ioctl+0x491/0x19c0 [ 22.695120] ? inet_ifa_byprefix+0x1e0/0x1e0 [ 22.699522] ? __schedule+0x2060/0x2060 [ 22.703471] ? sock_do_ioctl+0x73/0xb0 [ 22.707334] ? sock_ioctl+0x1e2/0x440 [ 22.711718] ? exit_to_usermode_loop+0x8c/0x2f0 [ 22.716361] ? trace_hardirqs_off+0xd/0x10 [ 22.720564] ? exit_to_usermode_loop+0x198/0x2f0 [ 22.725291] ? ioctl_preallocate+0x2b0/0x2b0 [ 22.729671] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 22.735177] ? selinux_capable+0x40/0x40 [ 22.739223] do_group_exit+0x149/0x400 [ 22.743079] ? prepare_exit_to_usermode+0x340/0x340 [ 22.748073] ? SyS_exit+0x30/0x30 [ 22.751499] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.756486] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.761213] SyS_exit_group+0x1d/0x20 [ 22.764984] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 22.769706] RIP: 0033:0x440839 [ 22.772862] RSP: 002b:00007fffb9900138 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 22.780537] RAX: ffffffffffffffda RBX: 0100000000000000 RCX: 0000000000440839 [ 22.787775] RDX: 0000000000440839 RSI: 000000002003b000 RDI: 0000000000000000 [ 22.795013] RBP: 00000000006cb018 R08: 000000000000001c R09: 00000000004002c8 [ 22.802250] R10: 000000000000001c R11: 0000000000000202 R12: 0000000000000000 [ 22.809486] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 22.816941] Dumping ftrace buffer: [ 22.820528] (ftrace buffer empty) [ 22.824208] Kernel Offset: disabled [ 22.827811] Rebooting in 86400 seconds..