[....] Starting enhanced syslogd: rsyslogd[ 10.794827] audit: type=1400 audit(1514662798.004:5): avc: denied { syslog } for pid=2991 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: [ 16.220375] audit: type=1400 audit(1514662803.430:6): avc: denied { map } for pid=3133 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 '10.128.15.213' (ECDSA) to the list of known hosts. executing program [ 22.393560] audit: type=1400 audit(1514662809.603:7): avc: denied { map } for pid=3147 comm="syzkaller043218" path="/root/syzkaller043218294" 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 [ 22.421349] device lo entered promiscuous mode [ 22.428324] WARNING: CPU: 1 PID: 3148 at net/core/stream.c:206 sk_stream_kill_queues+0x3c5/0x520 [ 22.437256] Kernel panic - not syncing: panic_on_warn set ... [ 22.437256] [ 22.444594] CPU: 1 PID: 3148 Comm: syzkaller043218 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 22.453138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.462460] Call Trace: [ 22.465024] dump_stack+0x194/0x257 [ 22.468628] ? arch_local_irq_restore+0x53/0x53 [ 22.473279] ? vsnprintf+0x1ed/0x1900 [ 22.477056] panic+0x1e4/0x41c [ 22.480217] ? refcount_error_report+0x214/0x214 [ 22.484944] ? show_regs_print_info+0x18/0x18 [ 22.489416] ? __warn+0x1c1/0x200 [ 22.492847] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.497582] __warn+0x1dc/0x200 [ 22.500832] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.505559] report_bug+0x211/0x2d0 [ 22.509185] fixup_bug.part.11+0x37/0x80 [ 22.513220] do_error_trap+0x2d7/0x3e0 [ 22.517077] ? kfree_skbmem+0xe2/0x1d0 [ 22.520938] ? math_error+0x400/0x400 [ 22.524711] ? sock_rfree+0x103/0x160 [ 22.528487] ? sk_clear_memalloc+0x140/0x140 [ 22.532878] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 22.537711] do_invalid_op+0x1b/0x20 [ 22.541396] invalid_op+0x22/0x40 [ 22.544817] RIP: 0010:sk_stream_kill_queues+0x3c5/0x520 [ 22.550148] RSP: 0018:ffff8801c8fef238 EFLAGS: 00010293 [ 22.555478] RAX: ffff8801c9e28080 RBX: ffff8801cd552040 RCX: ffffffff842c8e35 [ 22.562716] RDX: 0000000000000000 RSI: ffffffff86540be0 RDI: ffff8801cd552278 [ 22.569956] RBP: ffff8801c8fef278 R08: 1ffff100391fddd6 R09: 0000000000000000 [ 22.577197] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000b00 [ 22.584454] R13: ffff8801cd552230 R14: ffffffff88449a80 R15: ffff8801cd552178 [ 22.591716] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.596455] ? sk_stream_kill_queues+0x3c5/0x520 [ 22.601187] inet_csk_destroy_sock+0x175/0x3f0 [ 22.605740] tcp_done+0x1e9/0x240 [ 22.609170] tcp_time_wait+0x60b/0xa60 [ 22.613039] tcp_rcv_state_process+0x34b0/0x4830 [ 22.617773] ? __skb_clone+0x294/0xa60 [ 22.621639] ? tcp_finish_connect+0x410/0x410 [ 22.626108] ? find_held_lock+0x35/0x1d0 [ 22.630144] ? skb_clone+0x20d/0x480 [ 22.633823] ? __release_sock+0xca/0x360 [ 22.637869] ? skb_split+0x1310/0x1310 [ 22.641726] ? __lock_is_held+0xb6/0x140 [ 22.645764] ? mark_held_locks+0xaf/0x100 [ 22.649888] tcp_v6_do_rcv+0x739/0x11b0 [ 22.653836] ? tcp_v6_do_rcv+0x739/0x11b0 [ 22.657954] ? trace_hardirqs_on+0xd/0x10 [ 22.662080] __release_sock+0x124/0x360 [ 22.666030] release_sock+0xa4/0x2a0 [ 22.669715] ? __local_bh_enable_ip+0x121/0x230 [ 22.674353] ? __release_sock+0x360/0x360 [ 22.678469] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.683455] ? tcp_close+0x574/0xfc0 [ 22.687143] ? trace_hardirqs_on+0xd/0x10 [ 22.691266] ? __local_bh_enable_ip+0x121/0x230 [ 22.695913] tcp_close+0x57c/0xfc0 [ 22.699424] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.704417] tls_sk_proto_close+0x4f8/0x800 [ 22.708710] ? tcp_check_oom+0x500/0x500 [ 22.712743] ? tls_write_space+0x2c0/0x2c0 [ 22.716947] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 22.722818] ? ipv6_sock_ac_close+0x2e8/0x3e0 [ 22.727300] ? ipv6_sock_mc_close+0x148/0x1a0 [ 22.731777] ? ip_mc_drop_socket+0x1ce/0x230 [ 22.736158] inet_release+0xed/0x1c0 [ 22.739845] inet6_release+0x50/0x70 [ 22.743530] sock_release+0x8d/0x1e0 [ 22.747212] ? sock_alloc_file+0x560/0x560 [ 22.751423] sock_close+0x16/0x20 [ 22.754851] __fput+0x327/0x7e0 [ 22.758104] ? fput+0x140/0x140 [ 22.761369] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 22.767221] ? _raw_spin_unlock_irq+0x27/0x70 [ 22.771691] ____fput+0x15/0x20 [ 22.774942] task_work_run+0x199/0x270 [ 22.778813] ? task_work_cancel+0x210/0x210 [ 22.783111] ? _raw_spin_unlock+0x22/0x30 [ 22.787241] ? switch_task_namespaces+0x87/0xc0 [ 22.791887] do_exit+0x9bb/0x1ad0 [ 22.795318] ? mm_update_next_owner+0x930/0x930 [ 22.799964] ? __sched_text_start+0x8/0x8 [ 22.804089] ? dev_change_flags+0xf5/0x140 [ 22.808298] ? rtnl_unlock+0xe/0x10 [ 22.811901] ? devinet_ioctl+0x491/0x19c0 [ 22.816022] ? inet_ifa_byprefix+0x1e0/0x1e0 [ 22.820428] ? __schedule+0x2060/0x2060 [ 22.824374] ? sock_do_ioctl+0x73/0xb0 [ 22.828242] ? sock_ioctl+0x1e2/0x440 [ 22.832014] ? exit_to_usermode_loop+0x8c/0x2f0 [ 22.836659] ? trace_hardirqs_off+0xd/0x10 [ 22.840874] ? exit_to_usermode_loop+0x198/0x2f0 [ 22.845598] ? ioctl_preallocate+0x2b0/0x2b0 [ 22.849977] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 22.855484] ? selinux_capable+0x40/0x40 [ 22.859525] do_group_exit+0x149/0x400 [ 22.863409] ? prepare_exit_to_usermode+0x340/0x340 [ 22.868394] ? SyS_exit+0x30/0x30 [ 22.871817] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.876812] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.881543] SyS_exit_group+0x1d/0x20 [ 22.885313] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 22.890036] RIP: 0033:0x440839 [ 22.893193] RSP: 002b:00007fff93546d58 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 [ 22.900869] RAX: ffffffffffffffda RBX: 0100000000000000 RCX: 0000000000440839 [ 22.908108] RDX: 0000000000440839 RSI: 000000002003b000 RDI: 0000000000000000 [ 22.915346] RBP: 00000000006cb018 R08: 000000000000001c R09: 00000000004002c8 [ 22.922584] R10: 000000000000001c R11: 0000000000000206 R12: 0000000000000000 [ 22.929837] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 22.937588] Dumping ftrace buffer: [ 22.941215] (ftrace buffer empty) [ 22.944898] Kernel Offset: disabled [ 22.948496] Rebooting in 86400 seconds..