[?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. [ 19.616483] audit: type=1400 audit(1521739883.727:6): avc: denied { map } for pid=4142 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 '10.128.0.30' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 45.755648] audit: type=1400 audit(1521739909.866:7): avc: denied { map } for pid=4159 comm="syzkaller621748" path="/root/syzkaller621748921" 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 [ 51.168309] kasan: CONFIG_KASAN_INLINE enabled [ 51.173335] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 51.180740] general protection fault: 0000 [#1] SMP KASAN [ 51.186267] Dumping ftrace buffer: [ 51.189781] (ftrace buffer empty) [ 51.193463] Modules linked in: [ 51.196631] CPU: 1 PID: 4159 Comm: syzkaller621748 Not tainted 4.16.0-rc6+ #271 [ 51.204045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.213377] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 51.218447] RSP: 0018:ffff8801c831fc78 EFLAGS: 00010206 [ 51.223780] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff846006f4 [ 51.231051] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 51.238294] RBP: ffff8801c831fc90 R08: 0000000000000000 R09: 1ffff10039063f0b [ 51.245543] R10: ffff8801c831f820 R11: 0000000000000001 R12: ffff8801c97847d2 [ 51.252805] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801c831fd08 [ 51.260052] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008a37840 [ 51.268252] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 51.274193] CR2: ffffffffff600400 CR3: 00000001c827f004 CR4: 00000000001606e0 [ 51.281438] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.288679] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.295928] Call Trace: [ 51.298494] smc_shutdown+0x3ed/0x540 [ 51.302271] SyS_shutdown+0x137/0x290 [ 51.306044] ? SyS_getsockopt+0x340/0x340 [ 51.310170] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 51.315677] ? do_fast_syscall_32+0x156/0xf9f [ 51.320143] ? SyS_getsockopt+0x340/0x340 [ 51.324260] do_fast_syscall_32+0x3ec/0xf9f [ 51.328569] ? do_int80_syscall_32+0x9c0/0x9c0 [ 51.333129] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 51.338643] ? syscall_return_slowpath+0x550/0x550 [ 51.343551] ? syscall_return_slowpath+0x2ac/0x550 [ 51.348460] ? sysret32_from_system_call+0x5/0x3c [ 51.353277] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.358096] entry_SYSENTER_compat+0x70/0x7f [ 51.362475] RIP: 0023:0xf7f98c99 [ 51.365806] RSP: 002b:00000000ffd062ec EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 51.373485] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 51.380737] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 51.387977] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 51.395219] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 51.402459] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.409706] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 0c 12 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 [ 51.428779] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801c831fc78 [ 51.435404] ---[ end trace 4ef3e5f6c779abb7 ]--- [ 51.440157] Kernel panic - not syncing: Fatal exception [ 51.445903] Dumping ftrace buffer: [ 51.449418] (ftrace buffer empty) [ 51.453095] Kernel Offset: disabled [ 51.456691] Rebooting in 86400 seconds..