[....] Starting enhanced syslogd: rsyslogd[ 12.076533] audit: type=1400 audit(1515570474.209:5): avc: denied { syslog } for pid=3352 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 file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?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: [ 18.516309] audit: type=1400 audit(1515570480.648:6): avc: denied { map } for pid=3493 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 '10.128.15.214' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 24.701526] audit: type=1400 audit(1515570486.834:7): avc: denied { map } for pid=3507 comm="syzkaller307587" path="/root/syzkaller307587536" 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 [ 24.815998] audit: type=1400 audit(1515570486.947:8): avc: denied { sys_admin } for pid=3507 comm="syzkaller307587" 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 [ 24.856555] audit: type=1400 audit(1515570486.989:9): avc: denied { sys_chroot } for pid=3529 comm="syzkaller307587" 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 [ 24.881116] audit: type=1400 audit(1515570486.989:10): avc: denied { map_create } for pid=3529 comm="syzkaller307587" 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 [ 24.904308] audit: type=1400 audit(1515570486.989:11): avc: denied { map_read map_write } for pid=3529 comm="syzkaller307587" 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 [ 24.906748] kasan: CONFIG_KASAN_INLINE enabled [ 24.906756] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.906765] general protection fault: 0000 [#1] SMP KASAN [ 24.906770] Dumping ftrace buffer: [ 24.906773] (ftrace buffer empty) [ 24.906776] Modules linked in: [ 24.906784] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7-next-20180110+ #93 [ 24.906788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.906800] Workqueue: events bpf_map_free_deferred [ 24.906811] RIP: 0010:cgroup_fd_array_put_ptr+0x71/0x2a0 [ 24.906814] RSP: 0018:ffff8801d98c7490 EFLAGS: 00010a07 [ 24.906820] RAX: 16c80037600001c6 RBX: 1ffff1003b318e92 RCX: ffffffff81821495 [ 24.906823] RDX: 0000000000000000 RSI: ffff8801cb5fd6a4 RDI: b64001bb00000e35 [ 24.906827] RBP: ffff8801d98c7518 R08: 1ffff1003b318e70 R09: 0000000000000000 [ 24.906831] R10: 0000000000000000 R11: 0000000000000000 R12: b64001bb00000dc9 [ 24.906834] R13: ffff8801d98c74f0 R14: dffffc0000000000 R15: b64001bb00000dc9 [ 24.906840] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 24.906844] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.906847] CR2: 0000000020680fe4 CR3: 0000000006822003 CR4: 00000000001606f0 [ 24.906854] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.906857] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.906859] Call Trace: [ 24.906867] ? array_of_map_free+0x180/0x180 [ 24.906875] ? kfree+0xf3/0x260 [ 24.906884] ? selinux_bpf_map_free+0x39/0x50 [ 24.906893] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.906904] cgroup_fd_array_free+0xd2/0x150 [ 24.906915] bpf_map_free_deferred+0xb0/0xe0 [ 24.906926] process_one_work+0xbbf/0x1af0 [ 24.906932] ? trace_hardirqs_on+0xd/0x10 [ 24.906947] ? pwq_dec_nr_in_flight+0x450/0x450 [ 24.906955] ? __switch_to_asm+0x43/0x80 [ 24.906961] ? __switch_to_asm+0x43/0x80 [ 24.906966] ? __switch_to_asm+0x53/0x80 [ 24.906971] ? __switch_to_asm+0x43/0x80 [ 24.906976] ? __switch_to_asm+0x53/0x80 [ 24.906981] ? __switch_to_asm+0x43/0x80 [ 24.906991] ? __schedule+0x8f3/0x2060 [ 24.906997] ? update_curr+0x2e3/0xa60 [ 24.907014] ? check_noncircular+0x20/0x20 [ 24.907022] ? __lock_is_held+0xb6/0x140 [ 24.907048] ? lock_acquire+0x1d5/0x580 [ 24.907054] ? lock_acquire+0x1d5/0x580 [ 24.907061] ? worker_thread+0x4a3/0x1990 [ 24.907068] ? lock_downgrade+0x980/0x980 [ 24.907078] ? lock_release+0xa40/0xa40 [ 24.907085] ? check_noncircular+0x20/0x20 [ 24.907093] ? do_raw_spin_trylock+0x190/0x190 [ 24.907110] worker_thread+0x223/0x1990 [ 24.907131] ? process_one_work+0x1af0/0x1af0 [ 24.907140] ? _raw_spin_unlock_irq+0x27/0x70 [ 24.907149] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.907157] ? trace_hardirqs_on+0xd/0x10 [ 24.907163] ? mmdrop+0x18/0x30 [ 24.907170] ? finish_task_switch+0x1f6/0x740 [ 24.907176] ? __switch_to_asm+0x43/0x80 [ 24.907181] ? __switch_to_asm+0x53/0x80 [ 24.907186] ? __switch_to_asm+0x43/0x80 [ 24.907193] ? copy_overflow+0x20/0x20 [ 24.907198] ? __switch_to_asm+0x43/0x80 [ 24.907204] ? __switch_to_asm+0x43/0x80 [ 24.907209] ? __switch_to_asm+0x53/0x80 [ 24.907215] ? __switch_to_asm+0x43/0x80 [ 24.907220] ? __switch_to_asm+0x53/0x80 [ 24.907225] ? __switch_to_asm+0x43/0x80 [ 24.907230] ? __switch_to_asm+0x53/0x80 [ 24.907236] ? __switch_to_asm+0x43/0x80 [ 24.907245] ? __schedule+0x8f3/0x2060 [ 24.907268] ? find_held_lock+0x35/0x1d0 [ 24.907280] ? find_held_lock+0x35/0x1d0 [ 24.907291] ? complete+0x62/0x80 [ 24.907304] ? __schedule+0x2060/0x2060 [ 24.907311] ? do_wait_intr_irq+0x3e0/0x3e0 [ 24.907317] ? __lockdep_init_map+0xe4/0x650 [ 24.907324] ? do_raw_spin_trylock+0x190/0x190 [ 24.907331] ? lockdep_init_map+0x9/0x10 [ 24.907337] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.907345] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.907353] ? trace_hardirqs_on+0xd/0x10 [ 24.907359] ? __kthread_parkme+0x175/0x240 [ 24.907369] kthread+0x33c/0x400 [ 24.907375] ? process_one_work+0x1af0/0x1af0 [ 24.907380] ? kthread_stop+0x7a0/0x7a0 [ 24.907389] ret_from_fork+0x4b/0x60 [ 24.907403] Code: 45 88 30 14 82 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 5b 4e ee ff 49 8d 7c 24 6c 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f [ 24.907519] RIP: cgroup_fd_array_put_ptr+0x71/0x2a0 RSP: ffff8801d98c7490 [ 24.907546] ---[ end trace f8866c4ec1ba1916 ]--- [ 24.907549] Kernel panic - not syncing: Fatal exception [ 24.928168] Dumping ftrace buffer: [ 24.928171] (ftrace buffer empty) [ 24.928173] Kernel Offset: disabled [ 25.366013] Rebooting in 86400 seconds..