[....] Starting enhanced syslogd: rsyslogd[ 11.625707] audit: type=1400 audit(1515826822.854:5): avc: denied { syslog } for pid=3345 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 periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.379444] audit: type=1400 audit(1515826827.608:6): avc: denied { map } for pid=3482 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 '10.128.0.59' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 41.353406] audit: type=1400 audit(1515826852.582:7): avc: denied { map } for pid=3500 comm="syzkaller407233" path="/root/syzkaller407233228" 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 [ 41.441207] audit: type=1400 audit(1515826852.669:8): avc: denied { sys_admin } for pid=3500 comm="syzkaller407233" 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 [ 41.472658] audit: type=1400 audit(1515826852.701:9): avc: denied { sys_chroot } for pid=3524 comm="syzkaller407233" 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 [ 41.497762] audit: type=1400 audit(1515826852.701:10): avc: denied { map_create } for pid=3524 comm="syzkaller407233" 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 [ 41.520872] audit: type=1400 audit(1515826852.701:11): avc: denied { map_read map_write } for pid=3524 comm="syzkaller407233" 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 [ 41.553594] kasan: CONFIG_KASAN_INLINE enabled [ 41.558264] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.565682] general protection fault: 0000 [#1] SMP KASAN [ 41.571193] Dumping ftrace buffer: [ 41.574704] (ftrace buffer empty) [ 41.578384] Modules linked in: [ 41.581547] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 4.15.0-rc7+ #186 [ 41.588449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.597782] Workqueue: events bpf_map_free_deferred [ 41.602768] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 41.607317] RSP: 0018:ffff8801d9fbf458 EFLAGS: 00010293 [ 41.612647] RAX: ffff8801d9fb0480 RBX: 824001b800000dc4 RCX: ffffffff817dfcf4 [ 41.619885] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 824001b800000dc4 [ 41.627122] RBP: ffff8801d9fbf4e8 R08: 1ffff1003b3f7e6a R09: 0000000000000000 [ 41.634365] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b3f7e8c [ 41.641610] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 41.648862] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 41.657061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.662909] CR2: 0000000020fe6000 CR3: 0000000006822005 CR4: 00000000001606e0 [ 41.670162] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.677399] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.684643] Call Trace: [ 41.687210] ? bpf_prog_inc+0x20/0x20 [ 41.690980] ? kfree+0xf0/0x260 [ 41.694227] ? bpf_map_meta_free+0x15/0x20 [ 41.698445] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.703432] bpf_map_put+0x1a/0x20 [ 41.706954] bpf_map_fd_put_ptr+0x15/0x20 [ 41.711070] array_of_map_free+0x100/0x180 [ 41.715274] bpf_map_free_deferred+0xb0/0xe0 [ 41.719664] process_one_work+0xbbf/0x1b10 [ 41.723955] ? trace_hardirqs_on+0xd/0x10 [ 41.728078] ? pwq_dec_nr_in_flight+0x450/0x450 [ 41.732722] ? __schedule+0x8f3/0x2060 [ 41.736588] ? _raw_spin_unlock_irqrestore+0xa6/0xba [ 41.741679] ? check_noncircular+0x20/0x20 [ 41.745888] ? __wake_up_common_lock+0x1c2/0x310 [ 41.750613] ? lock_downgrade+0x980/0x980 [ 41.754733] ? do_wait_intr_irq+0x3e0/0x3e0 [ 41.759045] ? lock_acquire+0x1d5/0x580 [ 41.762987] ? lock_acquire+0x1d5/0x580 [ 41.766928] ? worker_thread+0x4a3/0x1990 [ 41.771045] ? lock_downgrade+0x980/0x980 [ 41.775164] ? lock_release+0xa40/0xa40 [ 41.779108] ? try_to_del_timer_sync+0xe0/0x130 [ 41.783748] ? do_raw_spin_trylock+0x190/0x190 [ 41.788306] worker_thread+0x223/0x1990 [ 41.792269] ? process_one_work+0x1b10/0x1b10 [ 41.796737] ? _raw_spin_unlock_irq+0x27/0x70 [ 41.801203] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.806189] ? trace_hardirqs_on+0xd/0x10 [ 41.810311] ? finish_task_switch+0x1d3/0x740 [ 41.814783] ? finish_task_switch+0x1aa/0x740 [ 41.819248] ? copy_overflow+0x20/0x20 [ 41.823124] ? __schedule+0x8f3/0x2060 [ 41.826989] ? find_held_lock+0x35/0x1d0 [ 41.831019] ? find_held_lock+0x35/0x1d0 [ 41.835054] ? complete+0x62/0x80 [ 41.838480] ? __schedule+0x2060/0x2060 [ 41.842426] ? do_wait_intr_irq+0x3e0/0x3e0 [ 41.846715] ? __lockdep_init_map+0xe4/0x650 [ 41.851092] ? do_raw_spin_trylock+0x190/0x190 [ 41.855645] ? lockdep_init_map+0x9/0x10 [ 41.859685] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 41.864760] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.869745] ? trace_hardirqs_on+0xd/0x10 [ 41.873877] ? __kthread_parkme+0x175/0x240 [ 41.878201] kthread+0x33c/0x400 [ 41.881548] ? process_one_work+0x1b10/0x1b10 [ 41.886021] ? kthread_stop+0x7a0/0x7a0 [ 41.889967] ret_from_fork+0x24/0x30 [ 41.893655] Code: b5 41 48 c7 45 80 fd 92 58 86 48 c7 45 88 90 fc 7d 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 4c 21 f2 ff ff 4b 48 74 2f e8 41 21 f2 ff 48 b8 00 00 00 00 00 fc ff df [ 41.912732] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d9fbf458 [ 41.918970] ---[ end trace 90ae7fbba021b6a1 ]--- [ 41.923747] Kernel panic - not syncing: Fatal exception [ 41.929126] Dumping ftrace buffer: [ 41.932656] (ftrace buffer empty) [ 41.936338] Kernel Offset: disabled [ 41.939934] Rebooting in 86400 seconds..