[?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. [ 18.673204] audit: type=1400 audit(1520591188.212:6): avc: denied { map } for pid=4211 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 '10.128.0.61' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.394962] audit: type=1400 audit(1520591204.933:7): avc: denied { map } for pid=4229 comm="syzkaller437130" path="/root/syzkaller437130356" 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 [ 40.415127] kasan: CONFIG_KASAN_INLINE enabled [ 40.419815] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.427205] general protection fault: 0000 [#1] SMP KASAN [ 40.432714] Dumping ftrace buffer: [ 40.436226] (ftrace buffer empty) [ 40.439907] Modules linked in: [ 40.443071] CPU: 0 PID: 4229 Comm: syzkaller437130 Not tainted 4.16.0-rc4+ #346 [ 40.450485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.459815] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 40.464887] RSP: 0018:ffff8801b0987cc8 EFLAGS: 00010206 [ 40.470229] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fc6f4 [ 40.477478] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 40.484721] RBP: ffff8801b0987ce0 R08: 0000000000000000 R09: 1ffff10036130f15 [ 40.491961] R10: ffff8801b0987870 R11: 0000000000000001 R12: ffff8801b25f37d2 [ 40.499210] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b0987d58 [ 40.506459] FS: 0000000000c3b880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 40.514661] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.520513] CR2: 00005626c28f8100 CR3: 00000001b0843001 CR4: 00000000001606f0 [ 40.527760] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.534998] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.542239] Call Trace: [ 40.544801] smc_shutdown+0x3ed/0x540 [ 40.548576] SyS_shutdown+0x137/0x290 [ 40.552350] ? SyS_getsockopt+0x340/0x340 [ 40.556485] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 40.561993] ? do_syscall_64+0xb7/0x940 [ 40.566113] ? SyS_getsockopt+0x340/0x340 [ 40.570230] do_syscall_64+0x281/0x940 [ 40.574090] ? __do_page_fault+0xc90/0xc90 [ 40.578293] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 40.583019] ? syscall_return_slowpath+0x550/0x550 [ 40.587918] ? syscall_return_slowpath+0x2ac/0x550 [ 40.592837] ? prepare_exit_to_usermode+0x350/0x350 [ 40.597826] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 40.603159] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.607974] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 40.613133] RIP: 0033:0x43fcb9 [ 40.616292] RSP: 002b:00007ffff9e7ca48 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 40.623966] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 40.631204] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 40.638703] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 40.645942] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 40.653182] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 40.660430] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 1c 3f 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 [ 40.679504] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b0987cc8 [ 40.686147] ---[ end trace 84afe067a6daf5d5 ]--- [ 40.690899] Kernel panic - not syncing: Fatal exception [ 40.696689] Dumping ftrace buffer: [ 40.700213] (ftrace buffer empty) [ 40.703895] Kernel Offset: disabled [ 40.707492] Rebooting in 86400 seconds..