[....] Starting enhanced syslogd: rsyslogd[ 12.305554] audit: type=1400 audit(1515796340.970:5): avc: denied { syslog } for pid=3350 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: [ 19.366763] audit: type=1400 audit(1515796348.031:6): avc: denied { map } for pid=3490 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 '10.128.15.198' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 28.858124] audit: type=1400 audit(1515796357.522:7): avc: denied { map } for pid=3505 comm="syzkaller073457" path="/root/syzkaller073457573" 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 executing program [ 28.936671] audit: type=1400 audit(1515796357.601:8): avc: denied { sys_admin } for pid=3505 comm="syzkaller073457" 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 [ 28.969989] audit: type=1400 audit(1515796357.631:9): avc: denied { sys_chroot } for pid=3527 comm="syzkaller073457" 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 [ 28.994552] audit: type=1400 audit(1515796357.632:10): avc: denied { map_create } for pid=3527 comm="syzkaller073457" 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 [ 29.017402] audit: type=1400 audit(1515796357.633:11): avc: denied { map_read map_write } for pid=3527 comm="syzkaller073457" 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 [ 29.047471] kasan: CONFIG_KASAN_INLINE enabled [ 29.052120] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.059499] general protection fault: 0000 [#1] SMP KASAN [ 29.065010] Dumping ftrace buffer: [ 29.068515] (ftrace buffer empty) [ 29.072194] Modules linked in: [ 29.075355] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc7+ #185 [ 29.082241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.091572] Workqueue: events bpf_map_free_deferred [ 29.096559] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 29.101105] RSP: 0018:ffff8801d98af458 EFLAGS: 00010293 [ 29.106433] RAX: ffff8801d98b4600 RBX: 80c001b900000dc7 RCX: ffffffff817dfcf4 [ 29.113669] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 80c001b900000dc7 [ 29.120904] RBP: ffff8801d98af4e8 R08: 1ffff1003b315e6a R09: 0000000000000000 [ 29.128140] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b315e8c [ 29.135373] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 29.142616] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.150810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.156666] CR2: 00000000204f9fe4 CR3: 0000000006822006 CR4: 00000000001606e0 [ 29.163905] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.171147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.178384] Call Trace: [ 29.180942] ? bpf_prog_inc+0x20/0x20 [ 29.184710] ? kfree+0xf0/0x260 [ 29.187962] ? bpf_map_meta_free+0x15/0x20 [ 29.192164] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.197148] bpf_map_put+0x1a/0x20 [ 29.200657] bpf_map_fd_put_ptr+0x15/0x20 [ 29.204769] array_of_map_free+0x100/0x180 [ 29.208971] bpf_map_free_deferred+0xb0/0xe0 [ 29.213346] process_one_work+0xbbf/0x1b10 [ 29.217548] ? put_task_stack+0x116/0x270 [ 29.221665] ? pwq_dec_nr_in_flight+0x450/0x450 [ 29.226307] ? __schedule+0x8f3/0x2060 [ 29.230158] ? update_curr+0x2e3/0xa60 [ 29.234014] ? check_noncircular+0x20/0x20 [ 29.238226] ? __lock_is_held+0xb6/0x140 [ 29.242265] ? lock_acquire+0x1d5/0x580 [ 29.246206] ? lock_acquire+0x1d5/0x580 [ 29.250145] ? worker_thread+0x4a3/0x1990 [ 29.254258] ? lock_downgrade+0x980/0x980 [ 29.258403] ? lock_release+0xa40/0xa40 [ 29.262355] ? retint_kernel+0x10/0x10 [ 29.266224] ? do_raw_spin_trylock+0x190/0x190 [ 29.270783] worker_thread+0x223/0x1990 [ 29.274735] ? process_one_work+0x1b10/0x1b10 [ 29.279197] ? _raw_spin_unlock_irq+0x27/0x70 [ 29.283658] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.288639] ? trace_hardirqs_on+0xd/0x10 [ 29.292750] ? _raw_spin_unlock_irq+0x27/0x70 [ 29.297208] ? finish_task_switch+0x1d3/0x740 [ 29.301670] ? finish_task_switch+0x1aa/0x740 [ 29.306143] ? copy_overflow+0x20/0x20 [ 29.310001] ? __schedule+0x8f3/0x2060 [ 29.313864] ? find_held_lock+0x35/0x1d0 [ 29.317899] ? find_held_lock+0x35/0x1d0 [ 29.321929] ? complete+0x62/0x80 [ 29.325351] ? __schedule+0x2060/0x2060 [ 29.329291] ? do_wait_intr_irq+0x3e0/0x3e0 [ 29.333578] ? __lockdep_init_map+0xe4/0x650 [ 29.337952] ? do_raw_spin_trylock+0x190/0x190 [ 29.342498] ? lockdep_init_map+0x9/0x10 [ 29.346527] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 29.351597] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.356579] ? trace_hardirqs_on+0xd/0x10 [ 29.360693] ? __kthread_parkme+0x175/0x240 [ 29.364982] kthread+0x33c/0x400 [ 29.368315] ? process_one_work+0x1b10/0x1b10 [ 29.372783] ? kthread_stop+0x7a0/0x7a0 [ 29.376724] ret_from_fork+0x24/0x30 [ 29.380408] Code: b5 41 48 c7 45 80 fd 92 58 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 [ 29.399474] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98af458 [ 29.405560] ---[ end trace 6d16ee88b409eabb ]--- [ 29.410303] Kernel panic - not syncing: Fatal exception [ 29.416120] Dumping ftrace buffer: [ 29.419629] (ftrace buffer empty) [ 29.423307] Kernel Offset: disabled [ 29.426901] Rebooting in 86400 seconds..