[....] Starting enhanced syslogd: rsyslogd[ 11.838971] audit: type=1400 audit(1515654814.966:5): avc: denied { syslog } for pid=3349 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: [ 18.866543] audit: type=1400 audit(1515654821.994:6): avc: denied { map } for pid=3489 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 '10.128.15.219' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 33.824830] audit: type=1400 audit(1515654836.952:7): avc: denied { map } for pid=3506 comm="syzkaller741259" path="/root/syzkaller741259692" 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 [ 33.904415] audit: type=1400 audit(1515654837.032:8): avc: denied { sys_admin } for pid=3506 comm="syzkaller741259" 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 [ 33.931999] audit: type=1400 audit(1515654837.059:9): avc: denied { sys_chroot } for pid=3529 comm="syzkaller741259" 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 [ 33.956590] audit: type=1400 audit(1515654837.060:10): avc: denied { map_create } for pid=3529 comm="syzkaller741259" 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 [ 33.979649] audit: type=1400 audit(1515654837.060:11): avc: denied { map_read map_write } for pid=3529 comm="syzkaller741259" 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 [ 33.981116] kasan: CONFIG_KASAN_INLINE enabled [ 33.981121] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.981128] general protection fault: 0000 [#1] SMP KASAN [ 33.981131] Dumping ftrace buffer: [ 33.981134] (ftrace buffer empty) [ 33.981135] Modules linked in: [ 33.981141] CPU: 1 PID: 24 Comm: kworker/1:1 Not tainted 4.15.0-rc7-mm1+ #53 [ 33.981143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.981154] Workqueue: events bpf_map_free_deferred [ 33.981162] RIP: 0010:cgroup_fd_array_put_ptr+0x71/0x2a0 [ 33.981164] RSP: 0018:ffff8801d98c7490 EFLAGS: 00010a07 [ 33.981167] RAX: 120c0037600001c6 RBX: 1ffff1003b318e92 RCX: ffffffff818214f5 [ 33.981169] RDX: 0000000000000000 RSI: ffff8801c1952a64 RDI: 906001bb00000e35 [ 33.981172] RBP: ffff8801d98c7518 R08: 1ffff1003b318e70 R09: 0000000000000000 [ 33.981174] R10: 0000000000000000 R11: 0000000000000000 R12: 906001bb00000dc9 [ 33.981176] R13: ffff8801d98c74f0 R14: dffffc0000000000 R15: 906001bb00000dc9 [ 33.981179] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 33.981181] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.981184] CR2: 00007ffe832c4f80 CR3: 0000000006822005 CR4: 00000000001606e0 [ 33.981188] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.981191] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.981192] Call Trace: [ 33.981198] ? array_of_map_free+0x180/0x180 [ 33.981203] ? kfree+0xf3/0x260 [ 33.981210] ? selinux_bpf_map_free+0x39/0x50 [ 33.981217] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.981224] cgroup_fd_array_free+0xd2/0x150 [ 33.981231] bpf_map_free_deferred+0xb0/0xe0 [ 33.981238] process_one_work+0xbbf/0x1af0 [ 33.981242] ? trace_hardirqs_on+0xd/0x10 [ 33.981252] ? pwq_dec_nr_in_flight+0x450/0x450 [ 33.981257] ? __switch_to_asm+0x43/0x80 [ 33.981260] ? __switch_to_asm+0x43/0x80 [ 33.981264] ? __switch_to_asm+0x53/0x80 [ 33.981267] ? __switch_to_asm+0x43/0x80 [ 33.981270] ? __switch_to_asm+0x53/0x80 [ 33.981272] ? __switch_to_asm+0x43/0x80 [ 33.981279] ? __schedule+0x8f3/0x2060 [ 33.981283] ? update_curr+0x2e3/0xa60 [ 33.981292] ? check_noncircular+0x20/0x20 [ 33.981297] ? __lock_is_held+0xb6/0x140 [ 33.981314] ? lock_acquire+0x1d5/0x580 [ 33.981318] ? lock_acquire+0x1d5/0x580 [ 33.981322] ? worker_thread+0x4a3/0x1990 [ 33.981326] ? lock_downgrade+0x980/0x980 [ 33.981332] ? lock_release+0xa40/0xa40 [ 33.981336] ? retint_kernel+0x10/0x10 [ 33.981341] ? do_raw_spin_trylock+0x190/0x190 [ 33.981351] worker_thread+0x223/0x1990 [ 33.981365] ? process_one_work+0x1af0/0x1af0 [ 33.981371] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.981376] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.981380] ? trace_hardirqs_on+0xd/0x10 [ 33.981385] ? mmdrop+0x18/0x30 [ 33.981390] ? finish_task_switch+0x1f6/0x740 [ 33.981393] ? __switch_to_asm+0x43/0x80 [ 33.981396] ? __switch_to_asm+0x53/0x80 [ 33.981399] ? __switch_to_asm+0x43/0x80 [ 33.981403] ? copy_overflow+0x20/0x20 [ 33.981406] ? __switch_to_asm+0x43/0x80 [ 33.981410] ? __switch_to_asm+0x43/0x80 [ 33.981413] ? __switch_to_asm+0x53/0x80 [ 33.981416] ? __switch_to_asm+0x43/0x80 [ 33.981419] ? __switch_to_asm+0x53/0x80 [ 33.981422] ? __switch_to_asm+0x43/0x80 [ 33.981425] ? __switch_to_asm+0x53/0x80 [ 33.981428] ? __switch_to_asm+0x43/0x80 [ 33.981434] ? __schedule+0x8f3/0x2060 [ 33.981448] ? find_held_lock+0x35/0x1d0 [ 33.981455] ? find_held_lock+0x35/0x1d0 [ 33.981463] ? complete+0x62/0x80 [ 33.981471] ? __schedule+0x2060/0x2060 [ 33.981475] ? do_wait_intr_irq+0x3e0/0x3e0 [ 33.981479] ? __lockdep_init_map+0xe4/0x650 [ 33.981483] ? do_raw_spin_trylock+0x190/0x190 [ 33.981487] ? lockdep_init_map+0x9/0x10 [ 33.981491] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 33.981496] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.981501] ? trace_hardirqs_on+0xd/0x10 [ 33.981505] ? __kthread_parkme+0x175/0x240 [ 33.981510] kthread+0x33c/0x400 [ 33.981514] ? process_one_work+0x1af0/0x1af0 [ 33.981517] ? kthread_stop+0x7a0/0x7a0 [ 33.981522] ret_from_fork+0x4b/0x60 [ 33.981532] Code: 45 88 90 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 [ 33.981603] RIP: cgroup_fd_array_put_ptr+0x71/0x2a0 RSP: ffff8801d98c7490 [ 33.981610] ---[ end trace f5b0768a5c3bcc65 ]--- [ 33.981612] Kernel panic - not syncing: Fatal exception [ 34.002981] Dumping ftrace buffer: [ 34.002984] (ftrace buffer empty) [ 34.002990] Kernel Offset: disabled [ 34.439204] Rebooting in 86400 seconds..