[?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. [ 18.489071] audit: type=1400 audit(1520725867.973:6): avc: denied { map } for pid=4212 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 '10.128.0.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.337838] audit: type=1400 audit(1520725886.822:7): avc: denied { map } for pid=4230 comm="syzkaller209222" path="/root/syzkaller209222404" 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 [ 42.464160] kasan: CONFIG_KASAN_INLINE enabled [ 42.468869] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.476396] general protection fault: 0000 [#1] SMP KASAN [ 42.481903] Dumping ftrace buffer: [ 42.485412] (ftrace buffer empty) [ 42.489089] Modules linked in: [ 42.492251] CPU: 0 PID: 4230 Comm: syzkaller209222 Not tainted 4.16.0-rc4+ #349 [ 42.499663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.508992] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 42.514060] RSP: 0018:ffff8801b3a2fcc8 EFLAGS: 00010206 [ 42.519388] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 42.526625] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 42.533861] RBP: ffff8801b3a2fce0 R08: 0000000000000000 R09: 1ffff10036745f15 [ 42.541100] R10: ffff8801b3a2f870 R11: 0000000000000001 R12: ffff8801b3d907d2 [ 42.548339] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b3a2fd58 [ 42.555578] FS: 000000000236a880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 42.563770] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.569616] CR2: 000055ba054070b8 CR3: 00000001b37ee005 CR4: 00000000001606f0 [ 42.576858] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.584098] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.591332] Call Trace: [ 42.593892] smc_shutdown+0x3ed/0x540 [ 42.597662] SyS_shutdown+0x137/0x290 [ 42.601430] ? SyS_getsockopt+0x340/0x340 [ 42.605549] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 42.611053] ? do_syscall_64+0xb7/0x940 [ 42.614995] ? SyS_getsockopt+0x340/0x340 [ 42.619110] do_syscall_64+0x281/0x940 [ 42.622969] ? __do_page_fault+0xc90/0xc90 [ 42.627169] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.631900] ? syscall_return_slowpath+0x550/0x550 [ 42.636798] ? syscall_return_slowpath+0x2ac/0x550 [ 42.641694] ? prepare_exit_to_usermode+0x350/0x350 [ 42.646677] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 42.652010] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.656822] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 42.661980] RIP: 0033:0x43fcf9 [ 42.665140] RSP: 002b:00007ffc2e2c3a58 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 42.672814] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcf9 [ 42.680052] RDX: 000000000043fcf9 RSI: 0000000000000000 RDI: 0000000000000003 [ 42.687292] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 42.694530] R10: 00000000004002c8 R11: 0000000000000217 R12: 0000000000401620 [ 42.701768] R13: 00000000004016b0 R14: 0000000000000000 R15: 0000000000000000 [ 42.709011] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 5c 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 [ 42.728080] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b3a2fcc8 [ 42.734703] ---[ end trace e7223437e0bfe234 ]--- [ 42.739442] Kernel panic - not syncing: Fatal exception [ 42.745124] Dumping ftrace buffer: [ 42.748630] (ftrace buffer empty) [ 42.752326] Kernel Offset: disabled [ 42.755928] Rebooting in 86400 seconds..