[....] Starting enhanced syslogd: rsyslogd[ 11.092923] audit: type=1400 audit(1515655557.142:5): avc: denied { syslog } for pid=3327 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: [ 19.284866] audit: type=1400 audit(1515655565.334:6): avc: denied { map } for pid=3469 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 '10.128.15.235' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 32.526771] audit: type=1400 audit(1515655578.576:7): avc: denied { map } for pid=3485 comm="syzkaller073229" path="/root/syzkaller073229697" 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 [ 32.614871] audit: type=1400 audit(1515655578.663:8): avc: denied { sys_admin } for pid=3485 comm="syzkaller073229" 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 [ 32.643646] audit: type=1400 audit(1515655578.693:9): avc: denied { sys_chroot } for pid=3509 comm="syzkaller073229" 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 [ 32.668173] audit: type=1400 audit(1515655578.693:10): avc: denied { map_create } for pid=3509 comm="syzkaller073229" 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 [ 32.691416] audit: type=1400 audit(1515655578.693:11): avc: denied { map_read map_write } for pid=3509 comm="syzkaller073229" 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 [ 32.693098] kasan: CONFIG_KASAN_INLINE enabled [ 32.693103] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.693110] general protection fault: 0000 [#1] SMP KASAN [ 32.693114] Dumping ftrace buffer: [ 32.693117] (ftrace buffer empty) [ 32.693118] Modules linked in: [ 32.693124] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 4.15.0-rc7-next-20180111+ #94 [ 32.693127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.693136] Workqueue: events bpf_map_free_deferred [ 32.693144] RIP: 0010:cgroup_fd_array_put_ptr+0x71/0x2a0 [ 32.693146] RSP: 0018:ffff8801d98c7490 EFLAGS: 00010a02 [ 32.693150] RAX: 120c0037600001c4 RBX: 1ffff1003b318e92 RCX: ffffffff81825235 [ 32.693152] RDX: 0000000000000000 RSI: ffff8801c091c5a4 RDI: 906001bb00000e21 [ 32.693155] RBP: ffff8801d98c7518 R08: 1ffff1003b318e70 R09: 0000000000000000 [ 32.693157] R10: 0000000000000000 R11: 0000000000000000 R12: 906001bb00000db5 [ 32.693159] R13: ffff8801d98c74f0 R14: dffffc0000000000 R15: 906001bb00000db5 [ 32.693162] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 32.693165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.693167] CR2: 00000000204dd000 CR3: 0000000006822006 CR4: 00000000001606e0 [ 32.693172] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.693174] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.693175] Call Trace: [ 32.693181] ? array_of_map_free+0x180/0x180 [ 32.693187] ? kfree+0xf3/0x260 [ 32.693193] ? selinux_bpf_map_free+0x39/0x50 [ 32.693200] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.693207] cgroup_fd_array_free+0xd2/0x150 [ 32.693214] bpf_map_free_deferred+0xb0/0xe0 [ 32.693223] process_one_work+0xbbf/0x1af0 [ 32.693227] ? trace_hardirqs_on+0xd/0x10 [ 32.693237] ? pwq_dec_nr_in_flight+0x450/0x450 [ 32.693242] ? __switch_to_asm+0x43/0x80 [ 32.693245] ? __switch_to_asm+0x53/0x80 [ 32.693248] ? __switch_to_asm+0x43/0x80 [ 32.693251] ? __switch_to_asm+0x53/0x80 [ 32.693254] ? __switch_to_asm+0x43/0x80 [ 32.693258] ? __switch_to_asm+0x53/0x80 [ 32.693261] ? __switch_to_asm+0x43/0x80 [ 32.693267] ? __schedule+0x8f3/0x2060 [ 32.693271] ? update_curr+0x2e3/0xa60 [ 32.693280] ? check_noncircular+0x20/0x20 [ 32.693285] ? __lock_is_held+0xb6/0x140 [ 32.693301] ? lock_acquire+0x1d5/0x580 [ 32.693305] ? lock_acquire+0x1d5/0x580 [ 32.693309] ? worker_thread+0x4a3/0x1990 [ 32.693314] ? lock_downgrade+0x980/0x980 [ 32.693319] ? lock_release+0xa40/0xa40 [ 32.693324] ? worker_pool_assign_id+0x1b0/0x1b0 [ 32.693329] ? do_raw_spin_trylock+0x190/0x190 [ 32.693340] worker_thread+0x223/0x1990 [ 32.693354] ? process_one_work+0x1af0/0x1af0 [ 32.693360] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.693365] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.693370] ? trace_hardirqs_on+0xd/0x10 [ 32.693375] ? mmdrop+0x18/0x30 [ 32.693380] ? finish_task_switch+0x1f6/0x740 [ 32.693383] ? __switch_to_asm+0x43/0x80 [ 32.693386] ? __switch_to_asm+0x53/0x80 [ 32.693389] ? __switch_to_asm+0x43/0x80 [ 32.693393] ? copy_overflow+0x20/0x20 [ 32.693396] ? __switch_to_asm+0x43/0x80 [ 32.693400] ? __switch_to_asm+0x43/0x80 [ 32.693403] ? __switch_to_asm+0x53/0x80 [ 32.693406] ? __switch_to_asm+0x43/0x80 [ 32.693409] ? __switch_to_asm+0x53/0x80 [ 32.693412] ? __switch_to_asm+0x43/0x80 [ 32.693415] ? __switch_to_asm+0x53/0x80 [ 32.693418] ? __switch_to_asm+0x43/0x80 [ 32.693423] ? __schedule+0x8f3/0x2060 [ 32.693438] ? find_held_lock+0x35/0x1d0 [ 32.693445] ? find_held_lock+0x35/0x1d0 [ 32.693452] ? complete+0x62/0x80 [ 32.693461] ? __schedule+0x2060/0x2060 [ 32.693464] ? do_wait_intr_irq+0x3e0/0x3e0 [ 32.693468] ? __lockdep_init_map+0xe4/0x650 [ 32.693472] ? do_raw_spin_trylock+0x190/0x190 [ 32.693476] ? lockdep_init_map+0x9/0x10 [ 32.693480] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 32.693485] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.693490] ? trace_hardirqs_on+0xd/0x10 [ 32.693494] ? __kthread_parkme+0x175/0x240 [ 32.693500] kthread+0x33c/0x400 [ 32.693504] ? process_one_work+0x1af0/0x1af0 [ 32.693508] ? kthread_stop+0x7a0/0x7a0 [ 32.693512] ret_from_fork+0x4b/0x60 [ 32.693521] Code: 45 88 d0 51 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 [ 32.693589] RIP: cgroup_fd_array_put_ptr+0x71/0x2a0 RSP: ffff8801d98c7490 [ 32.693596] ---[ end trace 36e9004a0c6c3498 ]--- [ 32.693599] Kernel panic - not syncing: Fatal exception [ 32.714748] Dumping ftrace buffer: [ 32.714751] (ftrace buffer empty) [ 32.714752] Kernel Offset: disabled [ 33.156638] Rebooting in 86400 seconds..