[....] Starting enhanced syslogd: rsyslogd[ 12.400225] audit: type=1400 audit(1514754912.217:5): avc: denied { syslog } for pid=3341 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: [ 18.534416] audit: type=1400 audit(1514754918.350:6): avc: denied { map } for pid=3480 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 '10.128.0.22' (ECDSA) to the list of known hosts. executing program executing program [ 24.766700] audit: type=1400 audit(1514754924.583:7): avc: denied { map } for pid=3495 comm="syzkaller959078" path="/root/syzkaller959078341" 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 [ 24.799879] ------------[ cut here ]------------ [ 24.804721] socket already in reuseport group [ 24.804844] WARNING: CPU: 1 PID: 3496 at net/core/sock_reuseport.c:119 reuseport_add_sock+0x742/0x9b0 [ 24.821002] Kernel panic - not syncing: panic_on_warn set ... [ 24.821002] [ 24.828347] CPU: 1 PID: 3496 Comm: syzkaller959078 Not tainted 4.15.0-rc5+ #171 [ 24.835762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.845110] Call Trace: [ 24.847678] dump_stack+0x194/0x257 [ 24.851290] ? arch_local_irq_restore+0x53/0x53 [ 24.855943] ? vsnprintf+0x1ed/0x1900 [ 24.859719] panic+0x1e4/0x41c [ 24.862881] ? refcount_error_report+0x214/0x214 [ 24.867606] ? show_regs_print_info+0x18/0x18 [ 24.872082] ? __warn+0x1c1/0x200 [ 24.875522] ? reuseport_add_sock+0x742/0x9b0 [ 24.879989] __warn+0x1dc/0x200 [ 24.883237] ? console_unlock+0x983/0xd80 [ 24.887364] ? reuseport_add_sock+0x742/0x9b0 [ 24.891843] report_bug+0x211/0x2d0 [ 24.895448] fixup_bug.part.11+0x37/0x80 [ 24.899489] do_error_trap+0x2d7/0x3e0 [ 24.903346] ? __down_trylock_console_sem+0x10d/0x1e0 [ 24.908508] ? math_error+0x400/0x400 [ 24.912278] ? vprintk_emit+0x3ea/0x590 [ 24.916413] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.921230] do_invalid_op+0x1b/0x20 [ 24.924930] invalid_op+0x22/0x40 [ 24.928355] RIP: 0010:reuseport_add_sock+0x742/0x9b0 [ 24.933428] RSP: 0018:ffff8801c09e7918 EFLAGS: 00010282 [ 24.938759] RAX: dffffc0000000008 RBX: ffff8801c08fb140 RCX: ffffffff8159ce7e [ 24.945997] RDX: 0000000000000000 RSI: 1ffff1003813cede RDI: 0000000000000293 [ 24.953234] RBP: ffff8801c09e7ab0 R08: 1ffff1003813cea0 R09: 0000000000000000 [ 24.960473] R10: ffff8801c09e77d0 R11: 0000000000000000 R12: 1ffff1003813cf2d [ 24.967710] R13: ffff8801c091d930 R14: ffff8801c09e7a88 R15: 1ffff1003813cf31 [ 24.975160] ? vprintk_func+0x5e/0xc0 [ 24.978949] ? reuseport_add_sock+0x742/0x9b0 [ 24.983421] ? sock_i_uid+0x8d/0xb0 [ 24.987020] ? reuseport_alloc+0x390/0x390 [ 24.991229] ? __inet_hash+0x23a/0x10d0 [ 24.995177] ? mark_held_locks+0xaf/0x100 [ 24.999305] ? __local_bh_enable_ip+0x121/0x230 [ 25.003945] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 25.008930] ? sock_i_uid+0x8d/0xb0 [ 25.012525] ? trace_hardirqs_on+0xd/0x10 [ 25.016641] ? __local_bh_enable_ip+0x121/0x230 [ 25.021278] ? inet_rcv_saddr_equal+0x12d/0x230 [ 25.025923] ? _raw_read_unlock_bh+0x30/0x40 [ 25.030304] __inet_hash+0x9c4/0x10d0 [ 25.034090] ? inet_ehash_nolisten+0x180/0x180 [ 25.038649] ? reqsk_timer_handler+0xea0/0xea0 [ 25.043200] ? avc_has_perm+0x43e/0x680 [ 25.047147] ? __lock_is_held+0xb6/0x140 [ 25.051210] ? rcu_read_lock_sched_held+0x108/0x120 [ 25.057241] ? inet_sk_state_store+0xf2/0x530 [ 25.061709] ? inet_sendpage+0x660/0x660 [ 25.065743] ? __raw_spin_lock_init+0x1c/0x100 [ 25.070292] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.075278] ? __lockdep_init_map+0xe4/0x650 [ 25.079659] ? __local_bh_enable_ip+0x121/0x230 [ 25.084299] ? inet_hash+0x41/0x90 [ 25.087808] ? reqsk_timer_handler+0xea0/0xea0 [ 25.092363] inet_hash+0x61/0x90 [ 25.095704] inet_csk_listen_start+0x258/0x310 [ 25.100259] inet_listen+0x19a/0x440 [ 25.103946] ? inet_exit_net+0x10/0x10 [ 25.107810] ? selinux_socket_listen+0x36/0x40 [ 25.112361] ? security_socket_listen+0x81/0xb0 [ 25.117006] SyS_listen+0x1aa/0x350 [ 25.120602] ? SyS_bind+0x30/0x30 [ 25.124025] ? entry_SYSCALL_64_fastpath+0x5/0x9a [ 25.128843] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.133832] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 25.139360] entry_SYSCALL_64_fastpath+0x23/0x9a [ 25.144089] RIP: 0033:0x445639 [ 25.147249] RSP: 002b:00007f301e183db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000032 [ 25.154924] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445639 [ 25.162164] RDX: 0000000000445639 RSI: 0000000000000000 RDI: 0000000000000005 [ 25.169401] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 [ 25.176640] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 25.183885] R13: 00007ffd7185c9ef R14: 00007f301e1849c0 R15: 0000000000000008 [ 25.191348] Dumping ftrace buffer: [ 25.194951] (ftrace buffer empty) [ 25.198637] Kernel Offset: disabled [ 25.202235] Rebooting in 86400 seconds..