[....] Starting enhanced syslogd: rsyslogd[ 12.405118] audit: type=1400 audit(1516042974.715:5): avc: denied { syslog } for pid=3494 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: [ 16.915121] audit: type=1400 audit(1516042979.225:6): avc: denied { map } for pid=3633 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 '10.128.0.35' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 39.561137] audit: type=1400 audit(1516043001.871:7): avc: denied { map } for pid=3651 comm="syzkaller019528" path="/root/syzkaller019528696" 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 [ 39.841822] 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 [ 40.198064] audit: type=1400 audit(1516043002.508:8): avc: denied { sys_admin } for pid=3651 comm="syzkaller019528" 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 [ 40.392461] audit: type=1400 audit(1516043002.703:9): avc: denied { sys_chroot } for pid=3806 comm="syzkaller019528" 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 [ 40.417140] audit: type=1400 audit(1516043002.704:10): avc: denied { map_create } for pid=3806 comm="syzkaller019528" 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 [ 40.439845] audit: type=1400 audit(1516043002.704:11): avc: denied { map_read map_write } for pid=3806 comm="syzkaller019528" 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 [ 40.473320] kasan: CONFIG_KASAN_INLINE enabled [ 40.477968] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.485568] general protection fault: 0000 [#1] SMP KASAN [ 40.491084] Dumping ftrace buffer: [ 40.494596] (ftrace buffer empty) [ 40.498276] Modules linked in: [ 40.501442] CPU: 0 PID: 3 Comm: kworker/0:0 Not tainted 4.15.0-rc8+ #263 [ 40.508246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.517594] Workqueue: events bpf_map_free_deferred [ 40.522595] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 40.527146] RSP: 0018:ffff8801d9f0f458 EFLAGS: 00010293 [ 40.532476] RAX: ffff8801d9efe0c0 RBX: ff4001cb00000ede RCX: ffffffff817db0d4 [ 40.539721] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ff4001cb00000ede [ 40.546958] RBP: ffff8801d9f0f4e8 R08: 1ffff1003b3e1e6a R09: 0000000000000000 [ 40.554198] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b3e1e8c [ 40.561436] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 40.568676] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 40.576870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.582730] CR2: 00000000204f9fe4 CR3: 0000000006822001 CR4: 00000000001606f0 [ 40.589977] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.597217] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.604457] Call Trace: [ 40.607028] ? bpf_prog_inc+0x20/0x20 [ 40.610795] ? kfree+0xf0/0x260 [ 40.614044] ? bpf_map_meta_free+0x15/0x20 [ 40.618248] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.623243] bpf_map_put+0x1a/0x20 [ 40.626753] bpf_map_fd_put_ptr+0x15/0x20 [ 40.630867] array_of_map_free+0x100/0x180 [ 40.635086] bpf_map_free_deferred+0xb0/0xe0 [ 40.639470] process_one_work+0xbbf/0x1b10 [ 40.643683] ? trace_hardirqs_on+0xd/0x10 [ 40.647806] ? pwq_dec_nr_in_flight+0x450/0x450 [ 40.652451] ? __schedule+0x8f3/0x2060 [ 40.656310] ? _raw_spin_unlock_irqrestore+0xa6/0xba [ 40.661386] ? check_noncircular+0x20/0x20 [ 40.665599] ? __wake_up_common_lock+0x1c2/0x310 [ 40.670331] ? lock_downgrade+0x980/0x980 [ 40.674451] ? do_wait_intr_irq+0x3e0/0x3e0 [ 40.678748] ? lock_acquire+0x1d5/0x580 [ 40.682696] ? lock_acquire+0x1d5/0x580 [ 40.686646] ? worker_thread+0x4a3/0x1990 [ 40.690764] ? lock_downgrade+0x980/0x980 [ 40.694888] ? lock_release+0xa40/0xa40 [ 40.698832] ? retint_kernel+0x10/0x10 [ 40.702689] ? do_raw_spin_trylock+0x190/0x190 [ 40.707257] worker_thread+0x223/0x1990 [ 40.711209] ? process_one_work+0x1b10/0x1b10 [ 40.715675] ? _raw_spin_unlock_irq+0x27/0x70 [ 40.720142] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.725128] ? trace_hardirqs_on+0xd/0x10 [ 40.729244] ? finish_task_switch+0x1d3/0x740 [ 40.733706] ? finish_task_switch+0x1aa/0x740 [ 40.738170] ? copy_overflow+0x20/0x20 [ 40.742037] ? __schedule+0x8f3/0x2060 [ 40.745904] ? find_held_lock+0x35/0x1d0 [ 40.749937] ? find_held_lock+0x35/0x1d0 [ 40.753971] ? complete+0x62/0x80 [ 40.757404] ? __schedule+0x2060/0x2060 [ 40.761346] ? do_wait_intr_irq+0x3e0/0x3e0 [ 40.765639] ? __lockdep_init_map+0xe4/0x650 [ 40.770017] ? do_raw_spin_trylock+0x190/0x190 [ 40.774575] ? lockdep_init_map+0x9/0x10 [ 40.778606] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 40.783679] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.788663] ? trace_hardirqs_on+0xd/0x10 [ 40.792779] ? __kthread_parkme+0x175/0x240 [ 40.797070] kthread+0x33c/0x400 [ 40.800405] ? process_one_work+0x1b10/0x1b10 [ 40.804866] ? kthread_stop+0x7a0/0x7a0 [ 40.808809] ret_from_fork+0x37/0x50 [ 40.812492] 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 [ 40.831560] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d9f0f458 [ 40.837861] ---[ end trace 20c2f61d897731b0 ]--- [ 40.842622] Kernel panic - not syncing: Fatal exception [ 40.847989] Dumping ftrace buffer: [ 40.851502] (ftrace buffer empty) [ 40.855191] Kernel Offset: disabled [ 40.858786] Rebooting in 86400 seconds..