[?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. [ 18.191859] audit: type=1400 audit(1517563509.519:6): avc: denied { map } for pid=4140 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 24.486138] audit: type=1400 audit(1517563515.813:7): avc: denied { map } for pid=4154 comm="syzkaller053874" path="/root/syzkaller053874254" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 28.606149] kasan: CONFIG_KASAN_INLINE enabled [ 28.610875] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.618246] general protection fault: 0000 [#1] SMP KASAN [ 28.623763] Dumping ftrace buffer: [ 28.627272] (ftrace buffer empty) [ 28.630952] Modules linked in: [ 28.634118] CPU: 1 PID: 4929 Comm: syzkaller053874 Not tainted 4.15.0+ #292 [ 28.641183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.650513] RIP: 0010:pppol2tp_connect+0x10a3/0x1dd0 [ 28.655584] RSP: 0018:ffff8801afda7af0 EFLAGS: 00010202 [ 28.660914] RAX: dffffc0000000000 RBX: ffff8801aff32d00 RCX: ffffffff851a46a0 [ 28.668155] RDX: 0000000000000045 RSI: 00000000fbad5961 RDI: 0000000000000228 [ 28.675394] RBP: ffff8801afda7d70 R08: 1ffff10035fb4e9f R09: 0000000000000002 [ 28.682632] R10: ffff8801afda79c0 R11: 0000000000000000 R12: ffff8801b00ef240 [ 28.689873] R13: ffff8801afda7d48 R14: 0000000000000000 R15: ffff8801afda7c28 [ 28.697113] FS: 0000000001ec7940(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 28.705308] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.711162] CR2: 00000000205fafd2 CR3: 00000001b259e001 CR4: 00000000001606e0 [ 28.718409] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.725650] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.732890] Call Trace: [ 28.735457] ? pppol2tp_recv_payload_hook+0x1b0/0x1b0 [ 28.740622] ? selinux_netlbl_socket_connect+0x76/0x1b0 [ 28.745958] ? selinux_socket_connect+0x311/0x730 [ 28.750771] ? lock_downgrade+0x980/0x980 [ 28.754890] ? lock_downgrade+0x980/0x980 [ 28.759015] ? selinux_socket_setsockopt+0x80/0x80 [ 28.763923] ? lock_release+0xa40/0xa40 [ 28.767869] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 28.773729] ? __check_object_size+0x25d/0x4f0 [ 28.778281] ? handle_mm_fault+0x476/0x930 [ 28.782488] ? __might_sleep+0x95/0x190 [ 28.786438] ? security_socket_connect+0x89/0xb0 [ 28.791170] SYSC_connect+0x213/0x4a0 [ 28.794946] ? SYSC_bind+0x410/0x410 [ 28.798634] ? do_page_fault+0xee/0x720 [ 28.802578] ? __do_page_fault+0xc90/0xc90 [ 28.806787] ? sock_map_fd+0x53/0x90 [ 28.810471] ? SyS_socket+0x12d/0x1d0 [ 28.814256] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 28.819074] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.824062] SyS_connect+0x24/0x30 [ 28.827576] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 28.832298] RIP: 0033:0x4416f9 [ 28.835463] RSP: 002b:00007fff40033ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 28.843148] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004416f9 [ 28.850394] RDX: 000000000000002e RSI: 00000000205fafd2 RDI: 0000000000000004 [ 28.857636] RBP: 0000000000006fb9 R08: 0000000000006fb9 R09: 0000000000006fb9 [ 28.864873] R10: 0000000000006fb9 R11: 0000000000000246 R12: 0000000000000000 [ 28.872117] R13: 0000000000000003 R14: 00000000006cf050 R15: 00000000004a2f0e [ 28.879365] Code: fe ff ff e8 10 5f 56 fc 4c 89 fa 49 8d be 28 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 c6 04 02 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 df 09 00 00 4c 89 fa 48 b8 00 00 00 00 00 fc [ 28.898452] RIP: pppol2tp_connect+0x10a3/0x1dd0 RSP: ffff8801afda7af0 [ 28.905225] ---[ end trace 53b92edd7dbd434f ]--- [ 28.909977] Kernel panic - not syncing: Fatal exception [ 28.915744] Dumping ftrace buffer: [ 28.919256] (ftrace buffer empty) [ 28.922935] Kernel Offset: disabled [ 28.926533] Rebooting in 86400 seconds..