[....] Starting enhanced syslogd: rsyslogd[ 12.065473] audit: type=1400 audit(1515797021.014:5): 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 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: [ 18.958280] audit: type=1400 audit(1515797027.907:6): avc: denied { map } for pid=3484 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 '10.128.0.55' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 36.884498] audit: type=1400 audit(1515797045.833:7): avc: denied { map } for pid=3502 comm="syzkaller497063" path="/root/syzkaller497063677" 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 [ 36.970786] audit: type=1400 audit(1515797045.918:8): avc: denied { sys_admin } for pid=3502 comm="syzkaller497063" 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 [ 37.155505] audit: type=1400 audit(1515797046.104:9): avc: denied { sys_chroot } for pid=3524 comm="syzkaller497063" 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 [ 37.180149] audit: type=1400 audit(1515797046.105:10): avc: denied { map_create } for pid=3524 comm="syzkaller497063" 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 [ 37.203311] audit: type=1400 audit(1515797046.106:11): avc: denied { map_read map_write } for pid=3524 comm="syzkaller497063" 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 [ 37.235514] kasan: CONFIG_KASAN_INLINE enabled [ 37.240336] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.247796] general protection fault: 0000 [#1] SMP KASAN [ 37.254379] Dumping ftrace buffer: [ 37.257904] (ftrace buffer empty) [ 37.261589] Modules linked in: [ 37.264756] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7+ #169 [ 37.271664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.281006] Workqueue: events bpf_map_free_deferred [ 37.286019] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 37.290567] RSP: 0018:ffff8801d98c7458 EFLAGS: 00010293 [ 37.295898] RAX: ffff8801d98ba640 RBX: eec001b900000dc4 RCX: ffffffff817db094 [ 37.303135] RDX: 0000000000000000 RSI: 0000000000000001 RDI: eec001b900000dc4 [ 37.310374] RBP: ffff8801d98c74e8 R08: 1ffff1003b318e6a R09: 0000000000000000 [ 37.318132] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b318e8c [ 37.325370] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 37.332613] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 37.340805] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.346653] CR2: 00000000204f9fe4 CR3: 0000000006822002 CR4: 00000000001606f0 [ 37.353901] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.361147] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.368392] Call Trace: [ 37.370954] ? bpf_prog_inc+0x20/0x20 [ 37.374735] ? kfree+0xf0/0x260 [ 37.377992] ? bpf_map_meta_free+0x15/0x20 [ 37.382197] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.387182] bpf_map_put+0x1a/0x20 [ 37.390700] bpf_map_fd_put_ptr+0x15/0x20 [ 37.394817] array_of_map_free+0x100/0x180 [ 37.399023] bpf_map_free_deferred+0xb0/0xe0 [ 37.403410] process_one_work+0xbbf/0x1b10 [ 37.407614] ? trace_hardirqs_on+0xd/0x10 [ 37.411746] ? pwq_dec_nr_in_flight+0x450/0x450 [ 37.416404] ? __schedule+0x8f3/0x2060 [ 37.420256] ? update_curr+0x2e3/0xa60 [ 37.424113] ? check_noncircular+0x20/0x20 [ 37.428316] ? __lock_is_held+0xb6/0x140 [ 37.432366] ? lock_acquire+0x1d5/0x580 [ 37.436312] ? lock_acquire+0x1d5/0x580 [ 37.440263] ? worker_thread+0x4a3/0x1990 [ 37.444388] ? lock_downgrade+0x980/0x980 [ 37.448506] ? lock_release+0xa40/0xa40 [ 37.452445] ? check_noncircular+0x20/0x20 [ 37.456660] ? do_raw_spin_trylock+0x190/0x190 [ 37.461214] worker_thread+0x223/0x1990 [ 37.465169] ? process_one_work+0x1b10/0x1b10 [ 37.469635] ? _raw_spin_unlock_irq+0x27/0x70 [ 37.474107] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.479101] ? trace_hardirqs_on+0xd/0x10 [ 37.483225] ? _raw_spin_unlock_irq+0x27/0x70 [ 37.487687] ? finish_task_switch+0x1d3/0x740 [ 37.492150] ? finish_task_switch+0x1aa/0x740 [ 37.496615] ? copy_overflow+0x20/0x20 [ 37.500472] ? __schedule+0x8f3/0x2060 [ 37.504335] ? find_held_lock+0x35/0x1d0 [ 37.508366] ? find_held_lock+0x35/0x1d0 [ 37.512408] ? complete+0x62/0x80 [ 37.515833] ? __schedule+0x2060/0x2060 [ 37.519777] ? do_wait_intr_irq+0x3e0/0x3e0 [ 37.524177] ? __lockdep_init_map+0xe4/0x650 [ 37.528557] ? do_raw_spin_trylock+0x190/0x190 [ 37.533104] ? lockdep_init_map+0x9/0x10 [ 37.537135] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 37.542217] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.547210] ? trace_hardirqs_on+0xd/0x10 [ 37.551335] ? __kthread_parkme+0x175/0x240 [ 37.555638] kthread+0x33c/0x400 [ 37.558971] ? process_one_work+0x1b10/0x1b10 [ 37.563440] ? kthread_stop+0x7a0/0x7a0 [ 37.567382] ret_from_fork+0x24/0x30 [ 37.571071] Code: b5 41 48 c7 45 80 a5 14 58 86 48 c7 45 88 30 b0 7d 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 ec 66 f2 ff ff 4b 48 74 2f e8 e1 66 f2 ff 48 b8 00 00 00 00 00 fc ff df [ 37.590146] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98c7458 [ 37.596394] ---[ end trace d0ecabe7e7dd1786 ]--- [ 37.601179] Kernel panic - not syncing: Fatal exception [ 37.606877] Dumping ftrace buffer: [ 37.610400] (ftrace buffer empty) [ 37.614091] Kernel Offset: disabled [ 37.617694] Rebooting in 86400 seconds..