[....] Starting enhanced syslogd: rsyslogd[ 12.915101] audit: type=1400 audit(1515797107.630:5): 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: [ 18.795897] audit: type=1400 audit(1515797113.511:6): avc: denied { map } for pid=3490 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 '10.128.15.236' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 25.016882] audit: type=1400 audit(1515797119.732:7): avc: denied { map } for pid=3504 comm="syzkaller013871" path="/root/syzkaller013871803" 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 [ 25.095896] audit: type=1400 audit(1515797119.810:8): avc: denied { sys_admin } for pid=3504 comm="syzkaller013871" 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 [ 25.132487] audit: type=1400 audit(1515797119.848:9): avc: denied { sys_chroot } for pid=3526 comm="syzkaller013871" 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 [ 25.157129] audit: type=1400 audit(1515797119.849:10): avc: denied { map_create } for pid=3526 comm="syzkaller013871" 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 [ 25.179811] audit: type=1400 audit(1515797119.850:11): avc: denied { map_read map_write } for pid=3526 comm="syzkaller013871" 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 [ 25.206241] kasan: CONFIG_KASAN_INLINE enabled [ 25.210984] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.218383] general protection fault: 0000 [#1] SMP KASAN [ 25.224073] Dumping ftrace buffer: [ 25.227684] (ftrace buffer empty) [ 25.231364] Modules linked in: [ 25.234528] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc7-mm1+ #54 [ 25.241686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.251015] Workqueue: events bpf_map_free_deferred [ 25.255999] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 25.260552] RSP: 0018:ffff8801d98b7458 EFLAGS: 00010293 [ 25.265880] RAX: ffff8801d98ac600 RBX: 9c6001be00000dc6 RCX: ffffffff817e8084 [ 25.273119] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 9c6001be00000dc6 [ 25.280356] RBP: ffff8801d98b74e8 R08: 1ffff1003b316e6a R09: 0000000000000000 [ 25.287593] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b316e8c [ 25.294832] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 25.302080] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 25.310271] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.316127] CR2: 00000000204f9fe4 CR3: 0000000006822006 CR4: 00000000001606e0 [ 25.323366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.330602] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.337848] Call Trace: [ 25.340405] ? bpf_prog_inc+0x20/0x20 [ 25.344176] ? kfree+0xf3/0x260 [ 25.347421] ? bpf_map_meta_free+0x15/0x20 [ 25.351632] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.356629] bpf_map_put+0x1a/0x20 [ 25.360146] bpf_map_fd_put_ptr+0x15/0x20 [ 25.364261] array_of_map_free+0x100/0x180 [ 25.368469] bpf_map_free_deferred+0xb0/0xe0 [ 25.372848] process_one_work+0xbbf/0x1af0 [ 25.377052] ? trace_hardirqs_on+0xd/0x10 [ 25.381172] ? pwq_dec_nr_in_flight+0x450/0x450 [ 25.385815] ? __switch_to_asm+0x43/0x80 [ 25.389845] ? __switch_to_asm+0x53/0x80 [ 25.393881] ? __switch_to_asm+0x43/0x80 [ 25.397910] ? __switch_to_asm+0x53/0x80 [ 25.401934] ? __switch_to_asm+0x43/0x80 [ 25.405959] ? __switch_to_asm+0x53/0x80 [ 25.409986] ? __switch_to_asm+0x43/0x80 [ 25.414017] ? __schedule+0x8f3/0x2060 [ 25.417870] ? update_curr+0x2e3/0xa60 [ 25.421728] ? check_noncircular+0x20/0x20 [ 25.425936] ? __lock_is_held+0xb6/0x140 [ 25.429976] ? lock_acquire+0x1d5/0x580 [ 25.433921] ? lock_acquire+0x1d5/0x580 [ 25.437862] ? worker_thread+0x4a3/0x1990 [ 25.441983] ? lock_downgrade+0x980/0x980 [ 25.446098] ? lock_release+0xa40/0xa40 [ 25.450045] ? retint_kernel+0x10/0x10 [ 25.453898] ? do_raw_spin_trylock+0x190/0x190 [ 25.458462] worker_thread+0x223/0x1990 [ 25.462414] ? process_one_work+0x1af0/0x1af0 [ 25.466882] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.471347] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.476340] ? trace_hardirqs_on+0xd/0x10 [ 25.480455] ? mmdrop+0x18/0x30 [ 25.483707] ? finish_task_switch+0x1f6/0x740 [ 25.488169] ? __switch_to_asm+0x43/0x80 [ 25.492193] ? __switch_to_asm+0x53/0x80 [ 25.496228] ? __switch_to_asm+0x43/0x80 [ 25.500264] ? copy_overflow+0x20/0x20 [ 25.504117] ? __switch_to_asm+0x43/0x80 [ 25.508144] ? __switch_to_asm+0x43/0x80 [ 25.512170] ? __switch_to_asm+0x53/0x80 [ 25.516208] ? __switch_to_asm+0x43/0x80 [ 25.520238] ? __switch_to_asm+0x53/0x80 [ 25.524262] ? __switch_to_asm+0x43/0x80 [ 25.528290] ? __switch_to_asm+0x53/0x80 [ 25.532316] ? __switch_to_asm+0x43/0x80 [ 25.536346] ? __schedule+0x8f3/0x2060 [ 25.540210] ? find_held_lock+0x35/0x1d0 [ 25.544246] ? find_held_lock+0x35/0x1d0 [ 25.548289] ? complete+0x62/0x80 [ 25.551711] ? __schedule+0x2060/0x2060 [ 25.555657] ? do_wait_intr_irq+0x3e0/0x3e0 [ 25.559949] ? __lockdep_init_map+0xe4/0x650 [ 25.564324] ? do_raw_spin_trylock+0x190/0x190 [ 25.568870] ? lockdep_init_map+0x9/0x10 [ 25.572903] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 25.577982] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.582971] ? trace_hardirqs_on+0xd/0x10 [ 25.587092] ? __kthread_parkme+0x175/0x240 [ 25.591379] kthread+0x33c/0x400 [ 25.594972] ? process_one_work+0x1af0/0x1af0 [ 25.599437] ? kthread_stop+0x7a0/0x7a0 [ 25.603384] ret_from_fork+0x4b/0x60 [ 25.607067] Code: b5 41 48 c7 45 80 95 26 59 86 48 c7 45 88 20 80 7e 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 9c 1e f2 ff ff 4b 48 74 2f e8 91 1e f2 ff 48 b8 00 00 00 00 00 fc ff df [ 25.626142] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98b7458 [ 25.632245] ---[ end trace 18a7dcb751816097 ]--- [ 25.636997] Kernel panic - not syncing: Fatal exception [ 25.642692] Dumping ftrace buffer: [ 25.646204] (ftrace buffer empty) [ 25.649881] Kernel Offset: disabled [ 25.653476] Rebooting in 86400 seconds..