[....] Starting enhanced syslogd: rsyslogd[ 14.567639] audit: type=1400 audit(1521392596.920:5): avc: denied { syslog } for pid=3998 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: [ 19.132089] audit: type=1400 audit(1521392601.484:6): avc: denied { map } for pid=4140 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 '10.128.0.34' (ECDSA) to the list of known hosts. [ 25.467998] audit: type=1400 audit(1521392607.820:7): avc: denied { map } for pid=4154 comm="syzkaller820009" path="/root/syzkaller820009029" 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 [ 25.484501] IPVS: ftp: loaded support on port[0] = 21 executing program [ 25.523231] IPVS: ftp: loaded support on port[0] = 21 [ 25.532105] WARNING: CPU: 0 PID: 4172 at ./include/net/sock.h:639 smc_unhash_sk+0x335/0x450 [ 25.540720] Kernel panic - not syncing: panic_on_warn set ... [ 25.540720] [ 25.548076] CPU: 0 PID: 4172 Comm: syzkaller820009 Not tainted 4.16.0-rc4+ #271 [ 25.555510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.557636] IPVS: ftp: loaded support on port[0] = 21 [ 25.564848] Call Trace: executing program [ 25.564870] dump_stack+0x194/0x24d [ 25.564884] ? arch_local_irq_restore+0x53/0x53 [ 25.564900] ? vsnprintf+0x1ed/0x1900 [ 25.584671] panic+0x1e4/0x41c [ 25.587840] ? refcount_error_report+0x214/0x214 [ 25.592571] ? show_regs_print_info+0x18/0x18 [ 25.597044] ? __destroy_inode+0x660/0x660 [ 25.601254] ? __warn+0x1c1/0x200 [ 25.604685] ? smc_unhash_sk+0x335/0x450 [ 25.608722] __warn+0x1dc/0x200 [ 25.611979] ? smc_unhash_sk+0x335/0x450 [ 25.616024] report_bug+0x211/0x2d0 [ 25.619633] fixup_bug.part.11+0x37/0x80 [ 25.623669] do_error_trap+0x2d7/0x3e0 [ 25.627537] ? math_error+0x400/0x400 [ 25.631313] ? reacquire_held_locks+0x1f9/0x3e0 [ 25.635961] ? lock_acquire+0x1d5/0x580 [ 25.639911] ? lock_acquire+0x1d5/0x580 [ 25.643868] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.648692] do_invalid_op+0x1b/0x20 [ 25.652381] invalid_op+0x1b/0x40 [ 25.655809] RIP: 0010:smc_unhash_sk+0x335/0x450 [ 25.660453] RSP: 0018:ffff8801b6bcf198 EFLAGS: 00010293 [ 25.665793] RAX: ffff8801c4d7e4c0 RBX: 1ffff10036d79e37 RCX: ffffffff85a4abe5 [ 25.673034] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 1ffff10036d79e3b [ 25.680278] RBP: ffff8801b6bcf280 R08: dffffc0000000000 R09: 0000000000000004 [ 25.687521] R10: ffff8801b6bcf050 R11: 0000000000000004 R12: ffff8801b6bcf258 [ 25.694765] R13: ffffffff87673340 R14: ffff8801c41947c0 R15: 1ffff10036d79e3b [ 25.702026] ? smc_unhash_sk+0x335/0x450 [ 25.706069] ? smc_unhash_sk+0x335/0x450 [ 25.710107] ? smc_hash_sk+0x2f0/0x2f0 [ 25.713972] ? release_sock+0x1d4/0x2a0 [ 25.717926] ? __local_bh_enable_ip+0x121/0x230 [ 25.722570] ? __release_sock+0x360/0x360 [ 25.726696] ? smc_release+0x23d/0x580 [ 25.730557] ? trace_hardirqs_on+0xd/0x10 [ 25.734682] ? __local_bh_enable_ip+0x121/0x230 [ 25.739332] smc_release+0x322/0x580 [ 25.743033] sock_release+0x8d/0x1e0 [ 25.746721] ? sock_alloc_file+0x560/0x560 [ 25.750926] sock_close+0x16/0x20 [ 25.754358] __fput+0x327/0x7e0 [ 25.757618] ? fput+0x140/0x140 [ 25.760873] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.765351] ____fput+0x15/0x20 [ 25.768611] task_work_run+0x199/0x270 [ 25.772480] ? task_work_cancel+0x210/0x210 [ 25.776777] ? _raw_spin_unlock+0x22/0x30 [ 25.780901] ? switch_task_namespaces+0x87/0xc0 [ 25.785549] do_exit+0x9bb/0x1ad0 [ 25.788982] ? mm_update_next_owner+0x930/0x930 [ 25.793630] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.798795] ? __lock_acquire+0x664/0x3e00 [ 25.803005] ? kasan_slab_free+0xe/0x10 [ 25.806957] ? kfree+0xd9/0x260 [ 25.810210] ? do_sys_poll+0xc4e/0x1050 [ 25.814154] ? SyS_poll+0x10d/0x450 [ 25.817754] ? trace_hardirqs_off+0x10/0x10 [ 25.822050] ? __lock_is_held+0xb6/0x140 [ 25.826102] ? __lock_is_held+0xb6/0x140 [ 25.830139] ? nohz_balance_exit_idle.part.95+0x70/0x70 [ 25.835493] ? switched_to_fair+0xa0/0xa0 [ 25.839615] ? trace_hardirqs_off+0x10/0x10 [ 25.843909] ? __enqueue_entity+0x109/0x1e0 [ 25.848203] ? do_sys_poll+0xc4e/0x1050 [ 25.852158] ? memset+0x31/0x40 [ 25.855418] ? find_held_lock+0x35/0x1d0 [ 25.859468] ? get_signal+0x7a9/0x16d0 [ 25.863332] ? lock_downgrade+0x980/0x980 [ 25.867463] do_group_exit+0x149/0x400 [ 25.871328] ? do_raw_spin_trylock+0x190/0x190 [ 25.875886] ? SyS_exit+0x30/0x30 [ 25.879316] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.883788] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.888789] get_signal+0x73a/0x16d0 [ 25.892491] ? ptrace_notify+0x130/0x130 [ 25.896535] ? __schedule+0x903/0x1ec0 [ 25.900406] ? __sched_text_start+0x8/0x8 [ 25.904533] ? __local_bh_enable_ip+0x121/0x230 [ 25.909181] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.914172] ? release_sock+0x1d4/0x2a0 [ 25.918120] ? trace_hardirqs_on+0xd/0x10 [ 25.922248] do_signal+0x90/0x1e90 [ 25.925765] ? release_sock+0x1d4/0x2a0 [ 25.929725] ? setup_sigcontext+0x7d0/0x7d0 [ 25.934034] ? schedule+0xf5/0x430 [ 25.937546] ? SYSC_connect+0x2e0/0x4a0 [ 25.941495] ? __schedule+0x1ec0/0x1ec0 [ 25.945442] ? SYSC_bind+0x410/0x410 [ 25.949150] ? exit_to_usermode_loop+0x8c/0x2f0 [ 25.953810] exit_to_usermode_loop+0x258/0x2f0 [ 25.958371] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 25.963885] ? do_syscall_64+0xb7/0x940 [ 25.967840] do_syscall_64+0x6ec/0x940 [ 25.971706] ? __do_page_fault+0xc90/0xc90 [ 25.975916] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 25.981433] ? syscall_return_slowpath+0x550/0x550 [ 25.986339] ? syscall_return_slowpath+0x2ac/0x550 [ 25.991247] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 25.996591] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.001421] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 26.006585] RIP: 0033:0x446a49 [ 26.009746] RSP: 002b:00007f24b65badb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 26.017429] RAX: 0000000000000269 RBX: 00000000006e29e4 RCX: 0000000000446a49 [ 26.024674] RDX: 0000000000000000 RSI: 0000000000000269 RDI: 00000000200000c0 [ 26.031917] RBP: 00000000006e29e0 R08: 0000000000000000 R09: 0000000000000000 [ 26.039163] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 26.046414] R13: 00007ffd6c86657f R14: 00007f24b65bb9c0 R15: 0000000000000003 [ 26.054356] Dumping ftrace buffer: [ 26.058003] (ftrace buffer empty) [ 26.061685] Kernel Offset: disabled [ 26.065286] Rebooting in 86400 seconds..