[?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. [ 17.910237] audit: type=1400 audit(1521190908.292:6): avc: denied { map } for pid=4141 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 '10.128.0.44' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.237348] audit: type=1400 audit(1521190914.619:7): avc: denied { map } for pid=4155 comm="syzkaller710355" path="/root/syzkaller710355953" 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 [ 29.663135] kasan: CONFIG_KASAN_INLINE enabled [ 29.667851] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.675218] general protection fault: 0000 [#1] SMP KASAN [ 29.680724] Dumping ftrace buffer: [ 29.684230] (ftrace buffer empty) [ 29.687918] Modules linked in: [ 29.691081] CPU: 0 PID: 4155 Comm: syzkaller710355 Not tainted 4.16.0-rc5+ #355 [ 29.698492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.707828] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.712910] RSP: 0018:ffff8801bd987cc8 EFLAGS: 00010206 [ 29.718243] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 29.725480] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.732717] RBP: ffff8801bd987ce0 R08: 0000000000000000 R09: 1ffff10037b30f15 [ 29.739956] R10: ffff8801bd987870 R11: 0000000000000001 R12: ffff8801beb477d2 [ 29.747193] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801bd987d58 [ 29.754431] FS: 0000000001d88880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 29.762623] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.768470] CR2: 000000000220ded8 CR3: 00000001b0cc1005 CR4: 00000000001606f0 [ 29.775710] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.782948] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.790188] Call Trace: [ 29.792748] smc_shutdown+0x3ed/0x540 [ 29.796519] SyS_shutdown+0x137/0x290 [ 29.800287] ? SyS_getsockopt+0x340/0x340 [ 29.804407] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.809913] ? do_syscall_64+0xb7/0x940 [ 29.813856] ? SyS_getsockopt+0x340/0x340 [ 29.817970] do_syscall_64+0x281/0x940 [ 29.821823] ? __do_page_fault+0xc90/0xc90 [ 29.826029] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.830754] ? syscall_return_slowpath+0x550/0x550 [ 29.835649] ? syscall_return_slowpath+0x2ac/0x550 [ 29.840552] ? prepare_exit_to_usermode+0x350/0x350 [ 29.845538] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.850873] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.855687] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.860842] RIP: 0033:0x43fcb9 [ 29.864001] RSP: 002b:00007ffcad873fc8 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 29.871673] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 29.878909] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 29.886145] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 29.893383] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 29.900619] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 29.907862] 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 [ 29.926926] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801bd987cc8 [ 29.933542] ---[ end trace 787d93491ce66526 ]--- [ 29.938278] Kernel panic - not syncing: Fatal exception [ 29.943989] Dumping ftrace buffer: [ 29.947499] (ftrace buffer empty) [ 29.951179] Kernel Offset: disabled [ 29.954773] Rebooting in 86400 seconds..