[....] Starting enhanced syslogd: rsyslogd[ 12.836339] audit: type=1400 audit(1516143541.291:5): avc: denied { syslog } for pid=3504 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: [ 19.667980] audit: type=1400 audit(1516143548.122:6): avc: denied { map } for pid=3644 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 '10.128.15.230' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 25.925068] audit: type=1400 audit(1516143554.379:7): avc: denied { map } for pid=3658 comm="syzkaller350965" path="/root/syzkaller350965789" 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 [ 26.137717] 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 [ 26.471164] audit: type=1400 audit(1516143554.925:8): avc: denied { sys_admin } for pid=3658 comm="syzkaller350965" 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 [ 26.497445] audit: type=1400 audit(1516143554.952:9): avc: denied { sys_chroot } for pid=3785 comm="syzkaller350965" 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 [ 26.522229] audit: type=1400 audit(1516143554.953:10): avc: denied { map_create } for pid=3785 comm="syzkaller350965" 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 [ 26.545004] audit: type=1400 audit(1516143554.953:11): avc: denied { map_read map_write } for pid=3785 comm="syzkaller350965" 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 [ 26.576938] kasan: CONFIG_KASAN_INLINE enabled [ 26.581605] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.589000] general protection fault: 0000 [#1] SMP KASAN [ 26.594520] Dumping ftrace buffer: [ 26.598031] (ftrace buffer empty) [ 26.601716] Modules linked in: [ 26.604883] CPU: 1 PID: 1551 Comm: kworker/1:2 Not tainted 4.15.0-rc7+ #192 [ 26.611957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.621297] Workqueue: events bpf_map_free_deferred [ 26.626286] RIP: 0010:cgroup_fd_array_put_ptr+0x71/0x2a0 [ 26.631709] RSP: 0018:ffff8801d35df490 EFLAGS: 00010a03 [ 26.637048] RAX: 19a00039800001e6 RBX: 1ffff1003a6bbe92 RCX: ffffffff8181cd95 [ 26.644288] RDX: 0000000000000000 RSI: ffff8801d6e3b064 RDI: cd0001cc00000f35 [ 26.651529] RBP: ffff8801d35df518 R08: 1ffff1003a6bbe70 R09: 0000000000000000 [ 26.658766] R10: 0000000000000000 R11: 0000000000000000 R12: cd0001cc00000ec9 [ 26.666003] R13: ffff8801d35df4f0 R14: dffffc0000000000 R15: cd0001cc00000ec9 [ 26.673243] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 26.681438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.687290] CR2: 00000000203e2fe4 CR3: 0000000006822005 CR4: 00000000001606e0 [ 26.694542] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.701782] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.709025] Call Trace: [ 26.711585] ? array_of_map_free+0x180/0x180 [ 26.715961] ? kfree+0xf0/0x260 [ 26.719212] ? selinux_bpf_map_free+0x39/0x50 [ 26.723677] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.728666] cgroup_fd_array_free+0xd2/0x150 [ 26.733047] bpf_map_free_deferred+0xb0/0xe0 [ 26.737426] process_one_work+0xbbf/0x1b10 [ 26.741629] ? trace_hardirqs_on+0xd/0x10 [ 26.745749] ? pwq_dec_nr_in_flight+0x450/0x450 [ 26.750401] ? __schedule+0x8f3/0x2060 [ 26.754256] ? update_curr+0x47b/0xa60 [ 26.758119] ? check_noncircular+0x20/0x20 [ 26.762322] ? __lock_is_held+0xb6/0x140 [ 26.766366] ? lock_acquire+0x1d5/0x580 [ 26.770307] ? lock_acquire+0x1d5/0x580 [ 26.774249] ? worker_thread+0x4a3/0x1990 [ 26.778365] ? lock_downgrade+0x980/0x980 [ 26.782485] ? lock_release+0xa40/0xa40 [ 26.786429] ? do_raw_spin_trylock+0x190/0x190 [ 26.790986] ? __update_idle_core+0x305/0x600 [ 26.795456] worker_thread+0x223/0x1990 [ 26.799410] ? process_one_work+0x1b10/0x1b10 [ 26.803878] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.808342] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.813325] ? trace_hardirqs_on+0xd/0x10 [ 26.817451] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.821914] ? finish_task_switch+0x1d3/0x740 [ 26.826374] ? finish_task_switch+0x1aa/0x740 [ 26.830839] ? copy_overflow+0x20/0x20 [ 26.834699] ? __schedule+0x8f3/0x2060 [ 26.838568] ? find_held_lock+0x35/0x1d0 [ 26.842601] ? find_held_lock+0x35/0x1d0 [ 26.846635] ? complete+0x62/0x80 [ 26.850060] ? __schedule+0x2060/0x2060 [ 26.854002] ? do_wait_intr_irq+0x3e0/0x3e0 [ 26.858301] ? __lockdep_init_map+0xe4/0x650 [ 26.862679] ? do_raw_spin_trylock+0x190/0x190 [ 26.867230] ? lockdep_init_map+0x9/0x10 [ 26.871262] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 26.876337] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.881321] ? trace_hardirqs_on+0xd/0x10 [ 26.885438] ? __kthread_parkme+0x175/0x240 [ 26.889731] kthread+0x33c/0x400 [ 26.893066] ? process_one_work+0x1b10/0x1b10 [ 26.897528] ? kthread_stop+0x7a0/0x7a0 [ 26.901472] ret_from_fork+0x24/0x30 [ 26.905157] Code: 45 88 30 cd 81 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 6b 50 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 [ 26.924224] RIP: cgroup_fd_array_put_ptr+0x71/0x2a0 RSP: ffff8801d35df490 [ 26.931208] ---[ end trace 25cb69329cd147d9 ]--- [ 26.935962] Kernel panic - not syncing: Fatal exception [ 26.941635] Dumping ftrace buffer: [ 26.945161] (ftrace buffer empty) [ 26.948842] Kernel Offset: disabled [ 26.952450] Rebooting in 86400 seconds..