[....] Starting enhanced syslogd: rsyslogd[ 11.536895] audit: type=1400 audit(1515660452.240:5): avc: denied { syslog } for pid=3348 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 file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.466730] audit: type=1400 audit(1515660458.170:6): avc: denied { map } for pid=3486 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 '10.128.0.58' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 [ 23.623829] audit: type=1400 audit(1515660464.327:7): avc: denied { map } for pid=3500 comm="syzkaller661874" path="/root/syzkaller661874093" 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 [ 23.731347] audit: type=1400 audit(1515660464.433:8): avc: denied { sys_admin } for pid=3500 comm="syzkaller661874" 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 [ 23.780485] audit: type=1400 audit(1515660464.484:9): avc: denied { sys_chroot } for pid=3522 comm="syzkaller661874" 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 [ 23.805051] audit: type=1400 audit(1515660464.485:10): avc: denied { map_create } for pid=3522 comm="syzkaller661874" 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 [ 23.828102] audit: type=1400 audit(1515660464.486:11): avc: denied { map_read map_write } for pid=3522 comm="syzkaller661874" 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 [ 23.855144] kasan: CONFIG_KASAN_INLINE enabled [ 23.859775] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.867163] general protection fault: 0000 [#1] SMP KASAN [ 23.872680] Dumping ftrace buffer: [ 23.876186] (ftrace buffer empty) [ 23.879861] Modules linked in: [ 23.883023] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted 4.15.0-rc7-next-20180111+ #94 [ 23.891042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.900381] Workqueue: events bpf_map_free_deferred [ 23.905365] RIP: 0010:__bpf_map_put+0x64/0x2e0 [ 23.909910] RSP: 0018:ffff8801d98b7458 EFLAGS: 00010293 [ 23.915239] RAX: ffff8801d98ac600 RBX: ad6001bc00000dc2 RCX: ffffffff817e81f4 [ 23.922476] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ad6001bc00000dc2 [ 23.929719] RBP: ffff8801d98b74e8 R08: 1ffff1003b316e6a R09: 0000000000000000 [ 23.936955] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b316e8c [ 23.944190] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 23.951430] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 23.959622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.965467] CR2: 00000000204f9fe4 CR3: 0000000006822003 CR4: 00000000001606e0 [ 23.972705] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.979948] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.987183] Call Trace: [ 23.989738] ? bpf_prog_inc+0x20/0x20 [ 23.993506] ? kfree+0xf3/0x260 [ 23.996754] ? bpf_map_meta_free+0x15/0x20 [ 24.000961] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.005946] bpf_map_put+0x1a/0x20 [ 24.009452] bpf_map_fd_put_ptr+0x15/0x20 [ 24.013572] array_of_map_free+0x100/0x180 [ 24.017773] bpf_map_free_deferred+0xb0/0xe0 [ 24.022153] process_one_work+0xbbf/0x1af0 [ 24.026360] ? trace_hardirqs_on+0xd/0x10 [ 24.030480] ? pwq_dec_nr_in_flight+0x450/0x450 [ 24.035114] ? __switch_to_asm+0x43/0x80 [ 24.039140] ? __switch_to_asm+0x53/0x80 [ 24.043174] ? __switch_to_asm+0x43/0x80 [ 24.047200] ? __switch_to_asm+0x53/0x80 [ 24.051225] ? __switch_to_asm+0x43/0x80 [ 24.055260] ? __switch_to_asm+0x53/0x80 [ 24.059285] ? __switch_to_asm+0x43/0x80 [ 24.063316] ? __schedule+0x8f3/0x2060 [ 24.067170] ? update_curr+0x2e3/0xa60 [ 24.071031] ? check_noncircular+0x20/0x20 [ 24.075233] ? __lock_is_held+0xb6/0x140 [ 24.079273] ? lock_acquire+0x1d5/0x580 [ 24.083212] ? lock_acquire+0x1d5/0x580 [ 24.087150] ? worker_thread+0x4a3/0x1990 [ 24.091265] ? lock_downgrade+0x980/0x980 [ 24.095380] ? lock_release+0xa40/0xa40 [ 24.099321] ? retint_kernel+0x10/0x10 [ 24.103184] ? do_raw_spin_trylock+0x190/0x190 [ 24.107739] worker_thread+0x223/0x1990 [ 24.111689] ? process_one_work+0x1af0/0x1af0 [ 24.116152] ? _raw_spin_unlock_irq+0x27/0x70 [ 24.120612] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.125593] ? trace_hardirqs_on+0xd/0x10 [ 24.129708] ? mmdrop+0x18/0x30 [ 24.132954] ? finish_task_switch+0x1f6/0x740 [ 24.137414] ? __switch_to_asm+0x43/0x80 [ 24.141439] ? __switch_to_asm+0x53/0x80 [ 24.145464] ? __switch_to_asm+0x43/0x80 [ 24.149491] ? copy_overflow+0x20/0x20 [ 24.153343] ? __switch_to_asm+0x43/0x80 [ 24.157378] ? __switch_to_asm+0x43/0x80 [ 24.161402] ? __switch_to_asm+0x53/0x80 [ 24.165428] ? __switch_to_asm+0x43/0x80 [ 24.169453] ? __switch_to_asm+0x53/0x80 [ 24.173478] ? __switch_to_asm+0x43/0x80 [ 24.177504] ? __switch_to_asm+0x53/0x80 [ 24.181530] ? __switch_to_asm+0x43/0x80 [ 24.185560] ? __schedule+0x8f3/0x2060 [ 24.189423] ? find_held_lock+0x35/0x1d0 [ 24.193453] ? find_held_lock+0x35/0x1d0 [ 24.197482] ? complete+0x62/0x80 [ 24.200903] ? __schedule+0x2060/0x2060 [ 24.204852] ? do_wait_intr_irq+0x3e0/0x3e0 [ 24.209138] ? __lockdep_init_map+0xe4/0x650 [ 24.213512] ? do_raw_spin_trylock+0x190/0x190 [ 24.218059] ? lockdep_init_map+0x9/0x10 [ 24.222085] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.227154] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.232136] ? trace_hardirqs_on+0xd/0x10 [ 24.236249] ? __kthread_parkme+0x175/0x240 [ 24.240540] kthread+0x33c/0x400 [ 24.243872] ? process_one_work+0x1af0/0x1af0 [ 24.248332] ? kthread_stop+0x7a0/0x7a0 [ 24.252273] ret_from_fork+0x4b/0x60 [ 24.255956] Code: b5 41 48 c7 45 80 95 26 59 86 48 c7 45 88 90 81 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 [ 24.275028] RIP: __bpf_map_put+0x64/0x2e0 RSP: ffff8801d98b7458 [ 24.281155] ---[ end trace b5a6820a021e6541 ]--- [ 24.285925] Kernel panic - not syncing: Fatal exception [ 24.291646] Dumping ftrace buffer: [ 24.295160] (ftrace buffer empty) [ 24.298835] Kernel Offset: disabled [ 24.302428] Rebooting in 86400 seconds..