[....] Starting enhanced syslogd: rsyslogd[ 11.945866] audit: type=1400 audit(1516073104.957:5): avc: denied { syslog } for pid=3497 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: [ 18.709346] audit: type=1400 audit(1516073111.721:6): avc: denied { map } for pid=3636 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 '10.128.15.232' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 35.815388] audit: type=1400 audit(1516073128.827:7): avc: denied { map } for pid=3653 comm="syzkaller892386" path="/root/syzkaller892386106" 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 RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 36.038940] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument executing program [ 36.382286] audit: type=1400 audit(1516073129.394:8): avc: denied { sys_admin } for pid=3653 comm="syzkaller892386" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 36.409545] audit: type=1400 audit(1516073129.421:9): avc: denied { sys_chroot } for pid=3780 comm="syzkaller892386" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 36.434082] audit: type=1400 audit(1516073129.421:10): avc: denied { map_create } for pid=3780 comm="syzkaller892386" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 36.456788] audit: type=1400 audit(1516073129.421:11): avc: denied { map_read map_write } for pid=3780 comm="syzkaller892386" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 36.487072] kasan: CONFIG_KASAN_INLINE enabled [ 36.491821] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.499241] general protection fault: 0000 [#1] SMP KASAN [ 36.504755] Dumping ftrace buffer: [ 36.508266] (ftrace buffer empty) [ 36.511950] Modules linked in: [ 36.515114] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7+ #190 [ 36.522008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.531340] Workqueue: events bpf_map_free_deferred [ 36.536350] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 36.540900] RSP: 0018:ffff8801d98c7458 EFLAGS: 00010293 [ 36.546234] RAX: ffff8801d98b8640 RBX: f32001cd00000ec4 RCX: ffffffff817dfcf4 [ 36.553475] RDX: 0000000000000000 RSI: 0000000000000001 RDI: f32001cd00000ec4 [ 36.560717] RBP: ffff8801d98c74e8 R08: 1ffff1003b318e6a R09: 0000000000000000 [ 36.567956] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b318e8c [ 36.575197] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 36.582441] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 36.590648] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.596510] CR2: 00000000204f9fe4 CR3: 0000000006822006 CR4: 00000000001606f0 [ 36.603755] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.611004] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.618261] Call Trace: [ 36.620829] ? bpf_prog_inc+0x20/0x20 [ 36.624604] ? kfree+0xf0/0x260 [ 36.627855] ? bpf_map_meta_free+0x15/0x20 [ 36.632062] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.637051] bpf_map_put+0x1a/0x20 [ 36.640577] bpf_map_fd_put_ptr+0x15/0x20 [ 36.644700] array_of_map_free+0x100/0x180 [ 36.648908] bpf_map_free_deferred+0xb0/0xe0 [ 36.653302] process_one_work+0xbbf/0x1b10 [ 36.657514] ? trace_hardirqs_on+0xd/0x10 [ 36.661640] ? pwq_dec_nr_in_flight+0x450/0x450 [ 36.666286] ? __schedule+0x8f3/0x2060 [ 36.670147] ? update_curr+0x2e3/0xa60 [ 36.674029] ? check_noncircular+0x20/0x20 [ 36.678249] ? __lock_is_held+0xb6/0x140 [ 36.682296] ? lock_acquire+0x1d5/0x580 [ 36.686241] ? lock_acquire+0x1d5/0x580 [ 36.690186] ? worker_thread+0x4a3/0x1990 [ 36.694306] ? lock_downgrade+0x980/0x980 [ 36.698428] ? lock_release+0xa40/0xa40 [ 36.702375] ? check_noncircular+0x20/0x20 [ 36.706594] ? do_raw_spin_trylock+0x190/0x190 [ 36.711163] worker_thread+0x223/0x1990 [ 36.715121] ? process_one_work+0x1b10/0x1b10 [ 36.719594] ? _raw_spin_unlock_irq+0x27/0x70 [ 36.724067] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.729057] ? trace_hardirqs_on+0xd/0x10 [ 36.733178] ? _raw_spin_unlock_irq+0x27/0x70 [ 36.737645] ? finish_task_switch+0x1d3/0x740 [ 36.742114] ? finish_task_switch+0x1aa/0x740 [ 36.746583] ? copy_overflow+0x20/0x20 [ 36.750451] ? __schedule+0x8f3/0x2060 [ 36.754319] ? find_held_lock+0x35/0x1d0 [ 36.758354] ? find_held_lock+0x35/0x1d0 [ 36.762392] ? complete+0x62/0x80 [ 36.765818] ? __schedule+0x2060/0x2060 [ 36.769762] ? do_wait_intr_irq+0x3e0/0x3e0 [ 36.774056] ? __lockdep_init_map+0xe4/0x650 [ 36.778437] ? do_raw_spin_trylock+0x190/0x190 [ 36.783002] ? lockdep_init_map+0x9/0x10 [ 36.787037] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.792112] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.797103] ? trace_hardirqs_on+0xd/0x10 [ 36.801234] ? __kthread_parkme+0x175/0x240 [ 36.805528] kthread+0x33c/0x400 [ 36.808870] ? process_one_work+0x1b10/0x1b10 [ 36.813347] ? kthread_stop+0x7a0/0x7a0 [ 36.817295] ret_from_fork+0x24/0x30 [ 36.820984] Code: b5 41 48 c7 45 80 1d 45 59 86 48 c7 45 88 90 fc 7d 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 4c 21 f2 ff ff 4b 48 74 2f e8 41 21 f2 ff 48 b8 00 00 00 00 00 fc ff df [ 36.840058] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98c7458 [ 36.846185] ---[ end trace a3894ab4c7a01034 ]--- [ 36.850955] Kernel panic - not syncing: Fatal exception [ 36.856650] Dumping ftrace buffer: [ 36.860259] (ftrace buffer empty) [ 36.863946] Kernel Offset: disabled [ 36.867553] Rebooting in 86400 seconds..