[....] Starting enhanced syslogd: rsyslogd[ 11.863667] audit: type=1400 audit(1515910371.371:5): avc: denied { syslog } for pid=3495 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 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: [ 18.231309] audit: type=1400 audit(1515910377.739:6): avc: denied { map } for pid=3634 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 '10.128.15.213' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 39.405444] audit: type=1400 audit(1515910398.913:7): avc: denied { map } for pid=3651 comm="syzkaller361307" path="/root/syzkaller361307389" 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 [ 39.678198] 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 [ 40.017993] audit: type=1400 audit(1515910399.525:8): avc: denied { sys_admin } for pid=3651 comm="syzkaller361307" 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 [ 40.046677] audit: type=1400 audit(1515910399.554:9): avc: denied { sys_chroot } for pid=3806 comm="syzkaller361307" 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 [ 40.071193] audit: type=1400 audit(1515910399.555:10): avc: denied { map_create } for pid=3806 comm="syzkaller361307" 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 [ 40.093867] audit: type=1400 audit(1515910399.556:11): avc: denied { map_read map_write } for pid=3806 comm="syzkaller361307" 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 [ 40.126393] kasan: CONFIG_KASAN_INLINE enabled [ 40.131052] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.138450] general protection fault: 0000 [#1] SMP KASAN [ 40.143964] Dumping ftrace buffer: [ 40.147473] (ftrace buffer empty) [ 40.151151] Modules linked in: [ 40.154321] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7+ #187 [ 40.161214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.170543] Workqueue: events bpf_map_free_deferred [ 40.175541] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 40.180091] RSP: 0018:ffff8801d98c7458 EFLAGS: 00010293 [ 40.185426] RAX: ffff8801d98b8640 RBX: efe001cc00000ede RCX: ffffffff817dfcf4 [ 40.192667] RDX: 0000000000000000 RSI: 0000000000000001 RDI: efe001cc00000ede [ 40.199906] RBP: ffff8801d98c74e8 R08: 1ffff1003b318e6a R09: 0000000000000000 [ 40.207146] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b318e8c [ 40.214397] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 40.221640] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 40.229833] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.235683] CR2: 0000000020fe6000 CR3: 0000000006822005 CR4: 00000000001606f0 [ 40.242924] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.250166] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.257414] Call Trace: [ 40.259981] ? bpf_prog_inc+0x20/0x20 [ 40.263754] ? kfree+0xf0/0x260 [ 40.267005] ? bpf_map_meta_free+0x15/0x20 [ 40.271211] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.276199] bpf_map_put+0x1a/0x20 [ 40.279708] bpf_map_fd_put_ptr+0x15/0x20 [ 40.283825] array_of_map_free+0x100/0x180 [ 40.288032] bpf_map_free_deferred+0xb0/0xe0 [ 40.292416] process_one_work+0xbbf/0x1b10 [ 40.296618] ? trace_hardirqs_on+0xd/0x10 [ 40.300742] ? pwq_dec_nr_in_flight+0x450/0x450 [ 40.305396] ? __schedule+0x8f3/0x2060 [ 40.309257] ? update_curr+0x2e3/0xa60 [ 40.313126] ? check_noncircular+0x20/0x20 [ 40.317329] ? __lock_is_held+0xb6/0x140 [ 40.321379] ? lock_acquire+0x1d5/0x580 [ 40.325321] ? lock_acquire+0x1d5/0x580 [ 40.329269] ? worker_thread+0x4a3/0x1990 [ 40.333394] ? lock_downgrade+0x980/0x980 [ 40.337515] ? lock_release+0xa40/0xa40 [ 40.341461] ? do_raw_spin_trylock+0x190/0x190 [ 40.346031] worker_thread+0x223/0x1990 [ 40.349986] ? process_one_work+0x1b10/0x1b10 [ 40.354462] ? _raw_spin_unlock_irq+0x27/0x70 [ 40.358933] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.363922] ? trace_hardirqs_on+0xd/0x10 [ 40.368040] ? _raw_spin_unlock_irq+0x27/0x70 [ 40.372513] ? finish_task_switch+0x1d3/0x740 [ 40.376975] ? finish_task_switch+0x1aa/0x740 [ 40.381441] ? copy_overflow+0x20/0x20 [ 40.385312] ? __schedule+0x8f3/0x2060 [ 40.389187] ? find_held_lock+0x35/0x1d0 [ 40.393219] ? find_held_lock+0x35/0x1d0 [ 40.397270] ? complete+0x62/0x80 [ 40.400703] ? __schedule+0x2060/0x2060 [ 40.404655] ? do_wait_intr_irq+0x3e0/0x3e0 [ 40.408946] ? __lockdep_init_map+0xe4/0x650 [ 40.413323] ? do_raw_spin_trylock+0x190/0x190 [ 40.417877] ? lockdep_init_map+0x9/0x10 [ 40.421916] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 40.426991] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.431982] ? trace_hardirqs_on+0xd/0x10 [ 40.436185] ? __kthread_parkme+0x175/0x240 [ 40.440487] kthread+0x33c/0x400 [ 40.443826] ? process_one_work+0x1b10/0x1b10 [ 40.448290] ? kthread_stop+0x7a0/0x7a0 [ 40.452236] ret_from_fork+0x24/0x30 [ 40.455923] Code: b5 41 48 c7 45 80 fd 44 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 [ 40.475002] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98c7458 [ 40.481220] ---[ end trace 8786bfad8a702f8f ]--- [ 40.485987] Kernel panic - not syncing: Fatal exception [ 40.491660] Dumping ftrace buffer: [ 40.495184] (ftrace buffer empty) [ 40.498866] Kernel Offset: disabled [ 40.502464] Rebooting in 86400 seconds..