[?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. [ 18.931592] audit: type=1400 audit(1520766595.122:6): avc: denied { map } for pid=4179 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 '10.128.0.2' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.253534] audit: type=1400 audit(1520766601.444:7): avc: denied { map } for pid=4193 comm="syzkaller675130" path="/root/syzkaller675130487" 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 [ 30.688193] kasan: CONFIG_KASAN_INLINE enabled [ 30.692954] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.700387] general protection fault: 0000 [#1] SMP KASAN [ 30.705916] Dumping ftrace buffer: [ 30.709870] (ftrace buffer empty) [ 30.713554] Modules linked in: [ 30.716722] CPU: 1 PID: 4193 Comm: syzkaller675130 Not tainted 4.16.0-rc4+ #349 [ 30.724136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.733468] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.738540] RSP: 0018:ffff8801d29b7cc8 EFLAGS: 00010206 [ 30.743874] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 30.751463] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.758712] RBP: ffff8801d29b7ce0 R08: 0000000000000000 R09: 1ffff1003a536f15 [ 30.765958] R10: ffff8801d29b7870 R11: 0000000000000001 R12: ffff8801bc53c7d2 [ 30.773287] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d29b7d58 [ 30.780530] FS: 0000000002085880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 30.788724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.794574] CR2: 00000000019db7d8 CR3: 00000001bcea6005 CR4: 00000000001606e0 [ 30.801839] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.809084] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.816336] Call Trace: [ 30.818908] smc_shutdown+0x3ed/0x540 [ 30.822684] SyS_shutdown+0x137/0x290 [ 30.826459] ? SyS_getsockopt+0x340/0x340 [ 30.830589] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.836106] ? do_syscall_64+0xb7/0x940 [ 30.840058] ? SyS_getsockopt+0x340/0x340 [ 30.844181] do_syscall_64+0x281/0x940 [ 30.848046] ? __do_page_fault+0xc90/0xc90 [ 30.852254] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.856980] ? syscall_return_slowpath+0x550/0x550 [ 30.861895] ? syscall_return_slowpath+0x2ac/0x550 [ 30.866794] ? prepare_exit_to_usermode+0x350/0x350 [ 30.871783] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.877121] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.881936] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.887096] RIP: 0033:0x43fcb9 [ 30.890258] RSP: 002b:00007fff0d6548a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 30.897940] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 30.905181] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 30.912422] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.919676] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 30.926927] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 30.934276] 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 [ 30.953438] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801d29b7cc8 [ 30.960077] ---[ end trace a5fb57df53930b86 ]--- [ 30.964927] Kernel panic - not syncing: Fatal exception [ 30.970754] Dumping ftrace buffer: [ 30.974272] (ftrace buffer empty) [ 30.977954] Kernel Offset: disabled [ 30.981552] Rebooting in 86400 seconds..