[?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. [ 18.049280] audit: type=1400 audit(1519649514.350:6): avc: denied { map } for pid=4219 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 '10.128.0.57' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.368048] audit: type=1400 audit(1519649520.669:7): avc: denied { map } for pid=4235 comm="syzkaller362145" path="/root/syzkaller362145387" 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 [ 29.663120] kasan: CONFIG_KASAN_INLINE enabled [ 29.667831] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.675217] general protection fault: 0000 [#1] SMP KASAN [ 29.680733] Dumping ftrace buffer: [ 29.684868] (ftrace buffer empty) [ 29.688549] Modules linked in: [ 29.691716] CPU: 1 PID: 4235 Comm: syzkaller362145 Not tainted 4.16.0-rc2+ #329 [ 29.699132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.708474] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.713549] RSP: 0018:ffff8801b0f6fcc8 EFLAGS: 00010206 [ 29.718884] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff846026f4 [ 29.726128] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.733371] RBP: ffff8801b0f6fce0 R08: 0000000000000000 R09: 1ffff100361edf15 [ 29.740622] R10: ffff8801b0f6f870 R11: 0000000000000001 R12: ffff8801b1f137d2 [ 29.747864] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b0f6fd58 [ 29.755108] FS: 000000000133b880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.763306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.769160] CR2: 00007efd17780000 CR3: 00000001b0d15005 CR4: 00000000001606e0 [ 29.776403] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.783645] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.790884] Call Trace: [ 29.793446] smc_shutdown+0x3ed/0x540 [ 29.797778] SyS_shutdown+0x137/0x290 [ 29.801550] ? SyS_getsockopt+0x340/0x340 [ 29.806107] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.811614] ? do_syscall_64+0xb6/0x940 [ 29.815562] ? SyS_getsockopt+0x340/0x340 [ 29.819679] do_syscall_64+0x280/0x940 [ 29.823540] ? __do_page_fault+0xc90/0xc90 [ 29.827747] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.832475] ? syscall_return_slowpath+0x550/0x550 [ 29.837376] ? syscall_return_slowpath+0x2ac/0x550 [ 29.842279] ? prepare_exit_to_usermode+0x350/0x350 [ 29.847268] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.852603] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.857419] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.862576] RIP: 0033:0x43fcb9 [ 29.865735] RSP: 002b:00007ffd188e0f58 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 29.873410] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 29.880651] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 29.887889] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 29.895129] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 29.902366] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 29.909610] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ac e5 10 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 [ 29.928688] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0f6fcc8 [ 29.935316] ---[ end trace d673d7af4f0a980c ]--- [ 29.940058] Kernel panic - not syncing: Fatal exception [ 29.945738] Dumping ftrace buffer: [ 29.949248] (ftrace buffer empty) [ 29.952930] Kernel Offset: disabled [ 29.956543] Rebooting in 86400 seconds..