[....] Starting enhanced syslogd: rsyslogd[ 13.513722] audit: type=1400 audit(1516085419.662:5): avc: denied { syslog } for pid=3501 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: [ 18.975255] audit: type=1400 audit(1516085425.124:6): avc: denied { map } for pid=3641 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. [ 25.220055] audit: type=1400 audit(1516085431.368:7): avc: denied { map } for pid=3656 comm="syzkaller952146" path="/root/syzkaller952146267" 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 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 25.611543] 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 [ 25.990517] audit: type=1400 audit(1516085432.139:8): avc: denied { sys_admin } for pid=3656 comm="syzkaller952146" 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 [ 26.018583] audit: type=1400 audit(1516085432.167:9): avc: denied { sys_chroot } for pid=3783 comm="syzkaller952146" 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 [ 26.043571] audit: type=1400 audit(1516085432.168:10): avc: denied { map_create } for pid=3783 comm="syzkaller952146" 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 [ 26.066536] audit: type=1400 audit(1516085432.169:11): avc: denied { map_read map_write } for pid=3783 comm="syzkaller952146" 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 [ 26.100247] kasan: CONFIG_KASAN_INLINE enabled [ 26.104954] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.112384] general protection fault: 0000 [#1] SMP KASAN [ 26.117899] Dumping ftrace buffer: [ 26.121423] (ftrace buffer empty) [ 26.125104] Modules linked in: [ 26.128282] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc8+ #173 [ 26.135186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.144527] Workqueue: events bpf_map_free_deferred [ 26.149517] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 26.154065] RSP: 0018:ffff8801d98af458 EFLAGS: 00010293 [ 26.159401] RAX: ffff8801d98b6600 RBX: eb8001d000000ec7 RCX: ffffffff817db0d4 [ 26.166642] RDX: 0000000000000000 RSI: 0000000000000001 RDI: eb8001d000000ec7 [ 26.173891] RBP: ffff8801d98af4e8 R08: 1ffff1003b315e6a R09: 0000000000000000 [ 26.181143] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b315e8c [ 26.188384] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 26.195628] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 26.203824] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.209676] CR2: 00000000204f9fe4 CR3: 0000000006822006 CR4: 00000000001606e0 [ 26.216919] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.224165] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.231406] Call Trace: [ 26.233971] ? bpf_prog_inc+0x20/0x20 [ 26.237749] ? kfree+0xf0/0x260 [ 26.240999] ? bpf_map_meta_free+0x15/0x20 [ 26.245205] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.250198] bpf_map_put+0x1a/0x20 [ 26.253709] bpf_map_fd_put_ptr+0x15/0x20 [ 26.257838] array_of_map_free+0x100/0x180 [ 26.262047] bpf_map_free_deferred+0xb0/0xe0 [ 26.266428] process_one_work+0xbbf/0x1b10 [ 26.270634] ? trace_hardirqs_on+0xd/0x10 [ 26.274756] ? pwq_dec_nr_in_flight+0x450/0x450 [ 26.279399] ? __schedule+0x8f3/0x2060 [ 26.283256] ? update_curr+0x2e3/0xa60 [ 26.287126] ? check_noncircular+0x20/0x20 [ 26.291342] ? __lock_is_held+0xb6/0x140 [ 26.295399] ? lock_acquire+0x1d5/0x580 [ 26.299341] ? lock_acquire+0x1d5/0x580 [ 26.303281] ? worker_thread+0x4a3/0x1990 [ 26.307405] ? lock_downgrade+0x980/0x980 [ 26.311523] ? lock_release+0xa40/0xa40 [ 26.315470] ? check_noncircular+0x20/0x20 [ 26.319674] ? do_raw_spin_trylock+0x190/0x190 [ 26.324253] worker_thread+0x223/0x1990 [ 26.328206] ? process_one_work+0x1b10/0x1b10 [ 26.332675] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.337152] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.342137] ? trace_hardirqs_on+0xd/0x10 [ 26.346264] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.350731] ? finish_task_switch+0x1d3/0x740 [ 26.355190] ? finish_task_switch+0x1aa/0x740 [ 26.359670] ? copy_overflow+0x20/0x20 [ 26.363535] ? __schedule+0x8f3/0x2060 [ 26.367398] ? find_held_lock+0x35/0x1d0 [ 26.371434] ? find_held_lock+0x35/0x1d0 [ 26.375472] ? complete+0x62/0x80 [ 26.378910] ? __schedule+0x2060/0x2060 [ 26.382856] ? do_wait_intr_irq+0x3e0/0x3e0 [ 26.387165] ? __lockdep_init_map+0xe4/0x650 [ 26.391548] ? do_raw_spin_trylock+0x190/0x190 [ 26.396099] ? lockdep_init_map+0x9/0x10 [ 26.400140] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 26.405214] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.410208] ? trace_hardirqs_on+0xd/0x10 [ 26.414325] ? __kthread_parkme+0x175/0x240 [ 26.418618] kthread+0x33c/0x400 [ 26.421971] ? process_one_work+0x1b10/0x1b10 [ 26.426436] ? kthread_stop+0x7a0/0x7a0 [ 26.430382] ret_from_fork+0x37/0x50 [ 26.434067] 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 [ 26.453142] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98af458 [ 26.459286] ---[ end trace 12951591cf850c2e ]--- [ 26.464061] Kernel panic - not syncing: Fatal exception [ 26.469794] Dumping ftrace buffer: [ 26.473317] (ftrace buffer empty) [ 26.477004] Kernel Offset: disabled [ 26.480615] Rebooting in 86400 seconds..