[?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. [ 18.149081] audit: type=1400 audit(1521259907.235:6): 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 '10.128.0.13' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.453935] audit: type=1400 audit(1521259913.540:7): avc: denied { map } for pid=4226 comm="syzkaller991713" path="/root/syzkaller991713422" 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 [ 29.663136] kasan: CONFIG_KASAN_INLINE enabled [ 29.667840] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.675404] general protection fault: 0000 [#1] SMP KASAN [ 29.680922] Dumping ftrace buffer: [ 29.684434] (ftrace buffer empty) [ 29.688114] Modules linked in: [ 29.691279] CPU: 0 PID: 4226 Comm: syzkaller991713 Not tainted 4.16.0-rc5+ #357 [ 29.698693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.708027] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.713096] RSP: 0018:ffff8801b36f7cc8 EFLAGS: 00010206 [ 29.718429] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 29.725668] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.732928] RBP: ffff8801b36f7ce0 R08: 0000000000000000 R09: 1ffff100366def15 [ 29.740168] R10: ffff8801b36f7870 R11: 0000000000000001 R12: ffff8801b38c87d2 [ 29.747417] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b36f7d58 [ 29.754676] FS: 0000000002477880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 29.762870] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.768723] CR2: 0000000002389e20 CR3: 00000001d30a1005 CR4: 00000000001606f0 [ 29.775968] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.783207] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.790446] Call Trace: [ 29.793021] smc_shutdown+0x3ed/0x540 [ 29.796796] SyS_shutdown+0x137/0x290 [ 29.800566] ? SyS_getsockopt+0x340/0x340 [ 29.804688] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.810194] ? do_syscall_64+0xb7/0x940 [ 29.814138] ? SyS_getsockopt+0x340/0x340 [ 29.818619] do_syscall_64+0x281/0x940 [ 29.822479] ? __do_page_fault+0xc90/0xc90 [ 29.826684] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.831411] ? syscall_return_slowpath+0x550/0x550 [ 29.836311] ? syscall_return_slowpath+0x2ac/0x550 [ 29.841210] ? prepare_exit_to_usermode+0x350/0x350 [ 29.846198] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.851539] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.856360] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.861522] RIP: 0033:0x43fcb9 [ 29.864680] RSP: 002b:00007ffd9cc4d018 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 29.872355] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 29.879593] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 29.886833] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 29.894071] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 29.901308] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 29.908557] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ac 20 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 [ 29.927626] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b36f7cc8 [ 29.934358] ---[ end trace 3ad8ca7c11624560 ]--- [ 29.939145] Kernel panic - not syncing: Fatal exception [ 29.944954] Dumping ftrace buffer: [ 29.948464] (ftrace buffer empty) [ 29.952144] Kernel Offset: disabled [ 29.955741] Rebooting in 86400 seconds..