[?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. [ 17.965748] audit: type=1400 audit(1520480556.341:6): avc: denied { map } for pid=4249 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 '10.128.0.9' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.370913] audit: type=1400 audit(1520480572.746:7): avc: denied { map } for pid=4266 comm="syzkaller973123" path="/root/syzkaller973123520" 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 [ 39.392116] kasan: CONFIG_KASAN_INLINE enabled [ 39.396818] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.404201] general protection fault: 0000 [#1] SMP KASAN [ 39.409749] Dumping ftrace buffer: [ 39.413262] (ftrace buffer empty) [ 39.416972] Modules linked in: [ 39.420139] CPU: 1 PID: 4266 Comm: syzkaller973123 Not tainted 4.16.0-rc4+ #345 [ 39.427555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.436889] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 39.441959] RSP: 0018:ffff8801b00a7cc8 EFLAGS: 00010206 [ 39.447292] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 39.454532] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 39.461782] RBP: ffff8801b00a7ce0 R08: 0000000000000000 R09: 1ffff10036014f15 [ 39.469030] R10: ffff8801b00a7870 R11: 0000000000000001 R12: ffff8801b2a937d2 [ 39.476274] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b00a7d58 [ 39.483516] FS: 00000000023d6880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 39.491714] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.497569] CR2: 00007f619768e000 CR3: 00000001b0451004 CR4: 00000000001606e0 [ 39.504811] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.512054] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.519304] Call Trace: [ 39.521869] smc_shutdown+0x3ed/0x540 [ 39.525647] SyS_shutdown+0x137/0x290 [ 39.529417] ? SyS_getsockopt+0x340/0x340 [ 39.533538] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 39.539044] ? do_syscall_64+0xb7/0x940 [ 39.542990] ? SyS_getsockopt+0x340/0x340 [ 39.547111] do_syscall_64+0x281/0x940 [ 39.550970] ? __do_page_fault+0xc90/0xc90 [ 39.555177] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 39.560771] ? syscall_return_slowpath+0x550/0x550 [ 39.565677] ? syscall_return_slowpath+0x2ac/0x550 [ 39.570582] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 39.575923] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.580740] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 39.585904] RIP: 0033:0x43fcb9 [ 39.589063] RSP: 002b:00007ffdeb160408 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 39.596743] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 39.603989] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 39.611231] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 39.618481] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 39.625722] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 39.632979] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 1c 2f 11 fd 48 8d 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 32 4c 8b 63 28 48 b8 00 00 00 00 00 fc ff df 49 [ 39.652055] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b00a7cc8 [ 39.658666] ---[ end trace ec8e6605b8d9fc5e ]--- [ 39.663421] Kernel panic - not syncing: Fatal exception [ 39.669165] Dumping ftrace buffer: [ 39.672679] (ftrace buffer empty) [ 39.676363] Kernel Offset: disabled [ 39.679963] Rebooting in 86400 seconds..