[....] Starting enhanced syslogd: rsyslogd[ 12.014183] audit: type=1400 audit(1516042205.203:5): 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 mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?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: [ 19.216968] audit: type=1400 audit(1516042212.405:6): avc: denied { map } for pid=3638 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 '10.128.15.237' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 41.406930] audit: type=1400 audit(1516042234.595:7): avc: denied { map } for pid=3655 comm="syzkaller407844" path="/root/syzkaller407844072" 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 [ 41.670793] 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 [ 42.008152] audit: type=1400 audit(1516042235.196:8): avc: denied { sys_admin } for pid=3655 comm="syzkaller407844" 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 [ 42.036490] audit: type=1400 audit(1516042235.225:9): avc: denied { sys_chroot } for pid=3810 comm="syzkaller407844" 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 [ 42.061064] audit: type=1400 audit(1516042235.226:10): avc: denied { map_create } for pid=3810 comm="syzkaller407844" 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 [ 42.084192] audit: type=1400 audit(1516042235.227:11): avc: denied { map_read map_write } for pid=3810 comm="syzkaller407844" 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 [ 42.110329] kasan: CONFIG_KASAN_INLINE enabled [ 42.114977] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.122393] general protection fault: 0000 [#1] SMP KASAN [ 42.127906] Dumping ftrace buffer: [ 42.131418] (ftrace buffer empty) [ 42.135101] Modules linked in: [ 42.138352] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc7+ #189 [ 42.145254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.154618] Workqueue: events bpf_map_free_deferred [ 42.159616] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 42.164166] RSP: 0018:ffff8801d98af458 EFLAGS: 00010293 [ 42.169595] RAX: ffff8801d98b4600 RBX: a78001ce00000ee2 RCX: ffffffff817dfcf4 [ 42.176836] RDX: 0000000000000000 RSI: 0000000000000001 RDI: a78001ce00000ee2 [ 42.184085] RBP: ffff8801d98af4e8 R08: 1ffff1003b315e6a R09: 0000000000000000 [ 42.191325] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b315e8c [ 42.198571] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 42.205821] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 42.214016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.219868] CR2: 00000000204f9fe4 CR3: 0000000006822001 CR4: 00000000001606e0 [ 42.227111] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.234351] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.241591] Call Trace: [ 42.244153] ? bpf_prog_inc+0x20/0x20 [ 42.247931] ? kfree+0xf0/0x260 [ 42.251181] ? bpf_map_meta_free+0x15/0x20 [ 42.255385] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.260371] bpf_map_put+0x1a/0x20 [ 42.263882] bpf_map_fd_put_ptr+0x15/0x20 [ 42.268000] array_of_map_free+0x100/0x180 [ 42.272292] bpf_map_free_deferred+0xb0/0xe0 [ 42.276681] process_one_work+0xbbf/0x1b10 [ 42.280892] ? trace_hardirqs_on+0xd/0x10 [ 42.285021] ? pwq_dec_nr_in_flight+0x450/0x450 [ 42.290208] ? __schedule+0x8f3/0x2060 [ 42.294065] ? update_curr+0x2e3/0xa60 [ 42.297927] ? check_noncircular+0x20/0x20 [ 42.302131] ? __lock_is_held+0xb6/0x140 [ 42.306175] ? lock_acquire+0x1d5/0x580 [ 42.310118] ? lock_acquire+0x1d5/0x580 [ 42.314071] ? worker_thread+0x4a3/0x1990 [ 42.318189] ? lock_downgrade+0x980/0x980 [ 42.322316] ? lock_release+0xa40/0xa40 [ 42.326261] ? check_noncircular+0x20/0x20 [ 42.330468] ? do_raw_spin_trylock+0x190/0x190 [ 42.335040] worker_thread+0x223/0x1990 [ 42.338998] ? process_one_work+0x1b10/0x1b10 [ 42.343469] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.347937] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.352936] ? trace_hardirqs_on+0xd/0x10 [ 42.357054] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.361528] ? finish_task_switch+0x1d3/0x740 [ 42.365990] ? finish_task_switch+0x1aa/0x740 [ 42.370464] ? copy_overflow+0x20/0x20 [ 42.374327] ? __schedule+0x8f3/0x2060 [ 42.378193] ? find_held_lock+0x35/0x1d0 [ 42.382242] ? find_held_lock+0x35/0x1d0 [ 42.386277] ? complete+0x62/0x80 [ 42.389703] ? __schedule+0x2060/0x2060 [ 42.393647] ? do_wait_intr_irq+0x3e0/0x3e0 [ 42.397937] ? __lockdep_init_map+0xe4/0x650 [ 42.402317] ? do_raw_spin_trylock+0x190/0x190 [ 42.406870] ? lockdep_init_map+0x9/0x10 [ 42.410902] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 42.415986] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.420974] ? trace_hardirqs_on+0xd/0x10 [ 42.425093] ? __kthread_parkme+0x175/0x240 [ 42.429386] kthread+0x33c/0x400 [ 42.432728] ? process_one_work+0x1b10/0x1b10 [ 42.437193] ? kthread_stop+0x7a0/0x7a0 [ 42.441148] ret_from_fork+0x24/0x30 [ 42.444836] 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 [ 42.463902] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98af458 [ 42.470119] ---[ end trace 6539ae2ff9a8fac5 ]--- [ 42.474899] Kernel panic - not syncing: Fatal exception [ 42.480633] Dumping ftrace buffer: [ 42.484147] (ftrace buffer empty) [ 42.487829] Kernel Offset: disabled [ 42.491430] Rebooting in 86400 seconds..