[....] Starting enhanced syslogd: rsyslogd[ 12.855682] audit: type=1400 audit(1516079659.344:5): avc: denied { syslog } for pid=3500 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 periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.782669] audit: type=1400 audit(1516079665.271:6): 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 '10.128.15.224' (ECDSA) to the list of known hosts. [ 35.314589] audit: type=1400 audit(1516079681.803:7): avc: denied { map } for pid=3655 comm="syzkaller616056" path="/root/syzkaller616056821" 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 RTNETLINK answers: Operation not supported [ 35.673483] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument executing program [ 35.982532] audit: type=1400 audit(1516079682.471:8): avc: denied { sys_admin } for pid=3655 comm="syzkaller616056" 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 [ 36.008879] audit: type=1400 audit(1516079682.497:9): avc: denied { sys_chroot } for pid=3782 comm="syzkaller616056" 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 [ 36.033651] audit: type=1400 audit(1516079682.497:10): avc: denied { map_create } for pid=3782 comm="syzkaller616056" 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 [ 36.056343] audit: type=1400 audit(1516079682.497:11): avc: denied { map_read map_write } for pid=3782 comm="syzkaller616056" 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 [ 36.087908] kasan: CONFIG_KASAN_INLINE enabled [ 36.092571] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.099969] general protection fault: 0000 [#1] SMP KASAN [ 36.105480] Dumping ftrace buffer: [ 36.108991] (ftrace buffer empty) [ 36.112673] Modules linked in: [ 36.115841] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.15.0-rc8+ #263 [ 36.122733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.132067] Workqueue: events bpf_map_free_deferred [ 36.137058] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 36.141607] RSP: 0018:ffff8801d9fbf458 EFLAGS: 00010293 [ 36.146938] RAX: ffff8801d9fb0480 RBX: e66001ca00000ec6 RCX: ffffffff817db0d4 [ 36.154187] RDX: 0000000000000000 RSI: 0000000000000001 RDI: e66001ca00000ec6 [ 36.161440] RBP: ffff8801d9fbf4e8 R08: 1ffff1003b3f7e6a R09: 0000000000000000 [ 36.168681] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b3f7e8c [ 36.175924] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 36.183164] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 36.191358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.197208] CR2: 00000000204f9fe4 CR3: 0000000006822004 CR4: 00000000001606e0 [ 36.204450] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.211690] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.218933] Call Trace: [ 36.221491] ? bpf_prog_inc+0x20/0x20 [ 36.225261] ? kfree+0xf0/0x260 [ 36.228512] ? bpf_map_meta_free+0x15/0x20 [ 36.232718] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.237705] bpf_map_put+0x1a/0x20 [ 36.241215] bpf_map_fd_put_ptr+0x15/0x20 [ 36.245340] array_of_map_free+0x100/0x180 [ 36.249546] bpf_map_free_deferred+0xb0/0xe0 [ 36.253926] process_one_work+0xbbf/0x1b10 [ 36.258131] ? trace_hardirqs_on+0xd/0x10 [ 36.262255] ? pwq_dec_nr_in_flight+0x450/0x450 [ 36.266903] ? __schedule+0x8f3/0x2060 [ 36.270768] ? _raw_spin_unlock_irqrestore+0xa6/0xba [ 36.275845] ? check_noncircular+0x20/0x20 [ 36.280051] ? __wake_up_common_lock+0x1c2/0x310 [ 36.284778] ? lock_downgrade+0x980/0x980 [ 36.288898] ? do_wait_intr_irq+0x3e0/0x3e0 [ 36.293194] ? lock_acquire+0x1d5/0x580 [ 36.297136] ? lock_acquire+0x1d5/0x580 [ 36.301089] ? worker_thread+0x4a3/0x1990 [ 36.305208] ? lock_downgrade+0x980/0x980 [ 36.309328] ? lock_release+0xa40/0xa40 [ 36.313271] ? retint_kernel+0x10/0x10 [ 36.317131] ? do_raw_spin_trylock+0x190/0x190 [ 36.321698] worker_thread+0x223/0x1990 [ 36.325653] ? process_one_work+0x1b10/0x1b10 [ 36.330127] ? _raw_spin_unlock_irq+0x27/0x70 [ 36.334600] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.339584] ? trace_hardirqs_on+0xd/0x10 [ 36.343701] ? finish_task_switch+0x1d3/0x740 [ 36.348164] ? finish_task_switch+0x1aa/0x740 [ 36.352641] ? copy_overflow+0x20/0x20 [ 36.356504] ? __schedule+0x8f3/0x2060 [ 36.360373] ? find_held_lock+0x35/0x1d0 [ 36.364407] ? find_held_lock+0x35/0x1d0 [ 36.368442] ? complete+0x62/0x80 [ 36.371866] ? __schedule+0x2060/0x2060 [ 36.375806] ? do_wait_intr_irq+0x3e0/0x3e0 [ 36.380094] ? __lockdep_init_map+0xe4/0x650 [ 36.384472] ? do_raw_spin_trylock+0x190/0x190 [ 36.389022] ? lockdep_init_map+0x9/0x10 [ 36.393052] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.398128] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.403122] ? trace_hardirqs_on+0xd/0x10 [ 36.407239] ? __kthread_parkme+0x175/0x240 [ 36.411530] kthread+0x33c/0x400 [ 36.414865] ? process_one_work+0x1b10/0x1b10 [ 36.419325] ? kthread_stop+0x7a0/0x7a0 [ 36.423269] ret_from_fork+0x37/0x50 [ 36.426958] 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 [ 36.446032] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d9fbf458 [ 36.452139] ---[ end trace 6c10653fdfd94c8b ]--- [ 36.456890] Kernel panic - not syncing: Fatal exception [ 36.462549] Dumping ftrace buffer: [ 36.466061] (ftrace buffer empty) [ 36.469746] Kernel Offset: disabled [ 36.473341] Rebooting in 86400 seconds..