[?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. [ 18.715121] audit: type=1400 audit(1521183822.638:6): avc: denied { map } for pid=4204 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 '10.128.0.8' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 30.717138] audit: type=1400 audit(1521183834.640:7): avc: denied { map } for pid=4220 comm="syzkaller864076" path="/root/syzkaller864076116" 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 [ 35.808535] kasan: CONFIG_KASAN_INLINE enabled [ 35.813315] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.820700] general protection fault: 0000 [#1] SMP KASAN [ 35.826217] Dumping ftrace buffer: [ 35.829724] (ftrace buffer empty) [ 35.833410] Modules linked in: [ 35.836580] CPU: 0 PID: 4220 Comm: syzkaller864076 Not tainted 4.16.0-rc5+ #355 [ 35.844007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.853336] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 35.858407] RSP: 0018:ffff8801b83c7cc8 EFLAGS: 00010206 [ 35.863741] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 35.870980] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 35.878220] RBP: ffff8801b83c7ce0 R08: 0000000000000000 R09: 1ffff10037078f15 [ 35.885459] R10: ffff8801b83c7870 R11: 0000000000000001 R12: ffff8801b291c7d2 [ 35.892696] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b83c7d58 [ 35.899937] FS: 0000000001a10880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 35.908131] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.913980] CR2: 00000000018aec70 CR3: 00000001b29b2006 CR4: 00000000001606f0 [ 35.921218] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.928456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.935696] Call Trace: [ 35.938256] smc_shutdown+0x3ed/0x540 [ 35.942035] SyS_shutdown+0x137/0x290 [ 35.945805] ? SyS_getsockopt+0x340/0x340 [ 35.949923] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 35.955436] ? do_syscall_64+0xb7/0x940 [ 35.959379] ? SyS_getsockopt+0x340/0x340 [ 35.963498] do_syscall_64+0x281/0x940 [ 35.967353] ? __do_page_fault+0xc90/0xc90 [ 35.971557] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.976282] ? syscall_return_slowpath+0x550/0x550 [ 35.981179] ? syscall_return_slowpath+0x2ac/0x550 [ 35.986078] ? prepare_exit_to_usermode+0x350/0x350 [ 35.991061] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 35.996393] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.001205] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 36.006618] RIP: 0033:0x43fcb9 [ 36.009775] RSP: 002b:00007ffd58b60f38 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 36.017449] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcb9 [ 36.024695] RDX: 000000000043fcb9 RSI: 0000000000000000 RDI: 0000000000000003 [ 36.031938] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 36.039181] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004015e0 [ 36.046417] R13: 0000000000401670 R14: 0000000000000000 R15: 0000000000000000 [ 36.053673] 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 [ 36.072738] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b83c7cc8 [ 36.079331] ---[ end trace 761ab3a50c67028a ]--- [ 36.084070] Kernel panic - not syncing: Fatal exception [ 36.089754] Dumping ftrace buffer: [ 36.093265] (ftrace buffer empty) [ 36.096943] Kernel Offset: disabled [ 36.100540] Rebooting in 86400 seconds..