[....] Starting enhanced syslogd: rsyslogd[ 11.907616] audit: type=1400 audit(1515786600.469:5): avc: denied { syslog } for pid=3344 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: [ 18.545795] audit: type=1400 audit(1515786607.107:6): avc: denied { map } for pid=3485 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 '10.128.15.223' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 33.799150] audit: type=1400 audit(1515786622.360:7): avc: denied { map } for pid=3502 comm="syzkaller828222" path="/root/syzkaller828222420" 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 [ 33.877742] audit: type=1400 audit(1515786622.439:8): avc: denied { sys_admin } for pid=3502 comm="syzkaller828222" 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 [ 34.062403] audit: type=1400 audit(1515786622.624:9): avc: denied { sys_chroot } for pid=3524 comm="syzkaller828222" 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 [ 34.086979] audit: type=1400 audit(1515786622.625:10): avc: denied { map_create } for pid=3524 comm="syzkaller828222" 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 [ 34.110106] audit: type=1400 audit(1515786622.625:11): avc: denied { map_read map_write } for pid=3524 comm="syzkaller828222" 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 [ 34.141285] kasan: CONFIG_KASAN_INLINE enabled [ 34.145926] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.153311] general protection fault: 0000 [#1] SMP KASAN [ 34.158819] Dumping ftrace buffer: [ 34.162327] (ftrace buffer empty) [ 34.166006] Modules linked in: [ 34.169170] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 4.15.0-rc7+ #168 [ 34.176059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.185393] Workqueue: events bpf_map_free_deferred [ 34.190382] RIP: 0010:cgroup_fd_array_put_ptr+0x71/0x2a0 [ 34.195797] RSP: 0018:ffff8801d98c7490 EFLAGS: 00010a06 [ 34.201279] RAX: 17cc0037600001c6 RBX: 1ffff1003b318e92 RCX: ffffffff8180f495 [ 34.208518] RDX: 0000000000000000 RSI: ffff8801be7eaa24 RDI: be6001bb00000e30 [ 34.215754] RBP: ffff8801d98c7518 R08: 1ffff1003b318e70 R09: 0000000000000000 [ 34.222988] R10: 0000000000000000 R11: 0000000000000000 R12: be6001bb00000dc4 [ 34.230230] R13: ffff8801d98c74f0 R14: dffffc0000000000 R15: be6001bb00000dc4 [ 34.237470] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 34.245671] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.251525] CR2: 00000000203e2fe4 CR3: 0000000006822006 CR4: 00000000001606e0 [ 34.258764] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.265998] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.273282] Call Trace: [ 34.275848] ? array_of_map_free+0x180/0x180 [ 34.280222] ? kfree+0xf0/0x260 [ 34.283555] ? selinux_bpf_map_free+0x39/0x50 [ 34.288016] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.292999] cgroup_fd_array_free+0xd2/0x150 [ 34.297379] bpf_map_free_deferred+0xb0/0xe0 [ 34.301756] process_one_work+0xbbf/0x1b10 [ 34.305958] ? trace_hardirqs_on+0xd/0x10 [ 34.310077] ? pwq_dec_nr_in_flight+0x450/0x450 [ 34.314718] ? __schedule+0x8f3/0x2060 [ 34.318571] ? update_curr+0x2e3/0xa60 [ 34.322443] ? check_noncircular+0x20/0x20 [ 34.326644] ? __lock_is_held+0xb6/0x140 [ 34.330683] ? lock_acquire+0x1d5/0x580 [ 34.334622] ? lock_acquire+0x1d5/0x580 [ 34.338562] ? worker_thread+0x4a3/0x1990 [ 34.342675] ? lock_downgrade+0x980/0x980 [ 34.346790] ? lock_release+0xa40/0xa40 [ 34.350738] ? check_noncircular+0x20/0x20 [ 34.354940] ? do_raw_spin_trylock+0x190/0x190 [ 34.359492] worker_thread+0x223/0x1990 [ 34.363449] ? process_one_work+0x1b10/0x1b10 [ 34.367914] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.372375] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.377359] ? trace_hardirqs_on+0xd/0x10 [ 34.381471] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.385947] ? finish_task_switch+0x1d3/0x740 [ 34.390407] ? finish_task_switch+0x1aa/0x740 [ 34.394874] ? copy_overflow+0x20/0x20 [ 34.398734] ? __schedule+0x8f3/0x2060 [ 34.402597] ? find_held_lock+0x35/0x1d0 [ 34.406635] ? find_held_lock+0x35/0x1d0 [ 34.410665] ? complete+0x62/0x80 [ 34.414087] ? __schedule+0x2060/0x2060 [ 34.418039] ? do_wait_intr_irq+0x3e0/0x3e0 [ 34.422413] ? __lockdep_init_map+0xe4/0x650 [ 34.426789] ? do_raw_spin_trylock+0x190/0x190 [ 34.431337] ? lockdep_init_map+0x9/0x10 [ 34.435363] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 34.440433] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.445414] ? trace_hardirqs_on+0xd/0x10 [ 34.449526] ? __kthread_parkme+0x175/0x240 [ 34.453815] kthread+0x33c/0x400 [ 34.457148] ? process_one_work+0x1b10/0x1b10 [ 34.461614] ? kthread_stop+0x7a0/0x7a0 [ 34.465556] ret_from_fork+0x24/0x30 [ 34.469242] Code: 45 88 30 f4 80 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 eb 22 ef 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 [ 34.488312] RIP: cgroup_fd_array_put_ptr+0x71/0x2a0 RSP: ffff8801d98c7490 [ 34.495401] ---[ end trace 0ba2d8c0926734cd ]--- [ 34.500160] Kernel panic - not syncing: Fatal exception [ 34.505523] Dumping ftrace buffer: [ 34.509034] (ftrace buffer empty) [ 34.512711] Kernel Offset: disabled [ 34.516305] Rebooting in 86400 seconds..