[....] Starting enhanced syslogd: rsyslogd[ 12.982978] audit: type=1400 audit(1516043022.166:5): avc: denied { syslog } for pid=3496 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: [ 18.860563] audit: type=1400 audit(1516043028.044:6): 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 '10.128.0.5' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 25.057054] audit: type=1400 audit(1516043034.240:7): avc: denied { map } for pid=3650 comm="syzkaller219234" path="/root/syzkaller219234725" 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 [ 25.452855] 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 [ 25.805753] audit: type=1400 audit(1516043034.989:8): avc: denied { sys_admin } for pid=3650 comm="syzkaller219234" 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 executing program [ 25.990637] audit: type=1400 audit(1516043035.174:9): avc: denied { sys_chroot } for pid=3805 comm="syzkaller219234" 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 [ 26.016220] audit: type=1400 audit(1516043035.175:10): avc: denied { map_create } for pid=3805 comm="syzkaller219234" 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 [ 26.039160] audit: type=1400 audit(1516043035.176:11): avc: denied { map_read map_write } for pid=3805 comm="syzkaller219234" 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 [ 26.073305] kasan: CONFIG_KASAN_INLINE enabled [ 26.077995] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.085677] general protection fault: 0000 [#1] SMP KASAN [ 26.091197] Dumping ftrace buffer: [ 26.094711] (ftrace buffer empty) [ 26.098394] Modules linked in: [ 26.101583] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc8+ #173 [ 26.108476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.118268] Workqueue: events bpf_map_free_deferred [ 26.123260] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 26.127814] RSP: 0018:ffff8801d98af458 EFLAGS: 00010293 [ 26.133153] RAX: ffff8801d98b6600 RBX: 988001cf00000edd RCX: ffffffff817db0d4 [ 26.140396] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 988001cf00000edd [ 26.147643] RBP: ffff8801d98af4e8 R08: 1ffff1003b315e6a R09: 0000000000000000 [ 26.154893] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b315e8c [ 26.162142] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 26.169383] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 26.177587] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.183438] CR2: 00000000204f9fe4 CR3: 0000000006822006 CR4: 00000000001606e0 [ 26.190689] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.197951] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.205194] Call Trace: [ 26.207776] ? bpf_prog_inc+0x20/0x20 [ 26.211547] ? kfree+0xf0/0x260 [ 26.214800] ? bpf_map_meta_free+0x15/0x20 [ 26.219627] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.224614] bpf_map_put+0x1a/0x20 [ 26.228126] bpf_map_fd_put_ptr+0x15/0x20 [ 26.232246] array_of_map_free+0x100/0x180 [ 26.236463] bpf_map_free_deferred+0xb0/0xe0 [ 26.240847] process_one_work+0xbbf/0x1b10 [ 26.245063] ? trace_hardirqs_on+0xd/0x10 [ 26.249899] ? pwq_dec_nr_in_flight+0x450/0x450 [ 26.254542] ? __schedule+0x8f3/0x2060 [ 26.258399] ? update_curr+0x2e3/0xa60 [ 26.262531] ? check_noncircular+0x20/0x20 [ 26.266736] ? __lock_is_held+0xb6/0x140 [ 26.270788] ? lock_acquire+0x1d5/0x580 [ 26.274732] ? lock_acquire+0x1d5/0x580 [ 26.278676] ? worker_thread+0x4a3/0x1990 [ 26.283061] ? lock_downgrade+0x980/0x980 [ 26.287187] ? lock_release+0xa40/0xa40 [ 26.291132] ? check_noncircular+0x20/0x20 [ 26.297008] ? do_raw_spin_trylock+0x190/0x190 [ 26.302720] worker_thread+0x223/0x1990 [ 26.306682] ? process_one_work+0x1b10/0x1b10 [ 26.311439] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.315917] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.321166] ? trace_hardirqs_on+0xd/0x10 [ 26.325293] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.329760] ? finish_task_switch+0x1d3/0x740 [ 26.334223] ? finish_task_switch+0x1aa/0x740 [ 26.338696] ? copy_overflow+0x20/0x20 [ 26.342562] ? __schedule+0x8f3/0x2060 [ 26.346431] ? find_held_lock+0x35/0x1d0 [ 26.350466] ? find_held_lock+0x35/0x1d0 [ 26.354767] ? complete+0x62/0x80 [ 26.358196] ? __schedule+0x2060/0x2060 [ 26.362142] ? do_wait_intr_irq+0x3e0/0x3e0 [ 26.366436] ? __lockdep_init_map+0xe4/0x650 [ 26.370817] ? do_raw_spin_trylock+0x190/0x190 [ 26.375371] ? lockdep_init_map+0x9/0x10 [ 26.379403] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 26.384476] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.389468] ? trace_hardirqs_on+0xd/0x10 [ 26.393585] ? __kthread_parkme+0x175/0x240 [ 26.398839] kthread+0x33c/0x400 [ 26.403133] ? process_one_work+0x1b10/0x1b10 [ 26.407597] ? kthread_stop+0x7a0/0x7a0 [ 26.411542] ret_from_fork+0x37/0x50 [ 26.415231] Code: b5 41 48 c7 45 80 95 d4 58 86 48 c7 45 88 70 b0 7d 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 ec 66 f2 ff ff 4b 48 74 2f e8 e1 66 f2 ff 48 b8 00 00 00 00 00 fc ff df [ 26.434309] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98af458 [ 26.440554] ---[ end trace 154156e9d1f33c02 ]--- [ 26.445339] Kernel panic - not syncing: Fatal exception [ 26.451133] Dumping ftrace buffer: [ 26.454662] (ftrace buffer empty) [ 26.458348] Kernel Offset: disabled [ 26.462124] Rebooting in 86400 seconds..