[?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. [ 18.530642] audit: type=1400 audit(1520768498.103:6): 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 '10.128.0.44' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.859725] audit: type=1400 audit(1520768504.432:7): avc: denied { map } for pid=4226 comm="syzkaller495063" path="/root/syzkaller495063999" 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 [ 30.176128] kasan: CONFIG_KASAN_INLINE enabled [ 30.180819] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.188200] general protection fault: 0000 [#1] SMP KASAN [ 30.193725] Dumping ftrace buffer: [ 30.197233] (ftrace buffer empty) [ 30.200921] Modules linked in: [ 30.204089] CPU: 0 PID: 4226 Comm: syzkaller495063 Not tainted 4.16.0-rc4+ #259 [ 30.211507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.220835] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.225903] RSP: 0018:ffff8801b13f7c78 EFLAGS: 00010206 [ 30.231233] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 30.238471] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.245708] RBP: ffff8801b13f7c90 R08: 0000000000000000 R09: 1ffff1003627ef0b [ 30.252946] R10: ffff8801b13f7820 R11: 0000000000000001 R12: ffff8801b6c0a7d2 [ 30.260186] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801b13f7d08 [ 30.267515] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:000000000875f840 [ 30.275709] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.281559] CR2: 0000000000e9cde0 CR3: 00000001b0872005 CR4: 00000000001606f0 [ 30.288800] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.296037] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.303274] Call Trace: [ 30.305835] smc_shutdown+0x3ed/0x540 [ 30.309607] SyS_shutdown+0x137/0x290 [ 30.313377] ? SyS_getsockopt+0x340/0x340 [ 30.317496] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.323005] ? do_fast_syscall_32+0x156/0xf9f [ 30.327473] ? SyS_getsockopt+0x340/0x340 [ 30.331591] do_fast_syscall_32+0x3ec/0xf9f [ 30.335882] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.340437] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.345160] ? syscall_return_slowpath+0x550/0x550 [ 30.350059] ? syscall_return_slowpath+0x2ac/0x550 [ 30.354959] ? prepare_exit_to_usermode+0x350/0x350 [ 30.359943] ? sysret32_from_system_call+0x5/0x3c [ 30.364755] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.369576] entry_SYSENTER_compat+0x70/0x7f [ 30.373951] RIP: 0023:0xf7f07c99 [ 30.377636] RSP: 002b:00000000ff8fa12c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 30.385312] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 30.392549] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 30.399791] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.407030] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.414270] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.421516] 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 [ 30.440583] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801b13f7c78 [ 30.447213] ---[ end trace 86b7563d229e6159 ]--- [ 30.451964] Kernel panic - not syncing: Fatal exception [ 30.457739] Dumping ftrace buffer: [ 30.461250] (ftrace buffer empty) [ 30.464928] Kernel Offset: disabled [ 30.468528] Rebooting in 86400 seconds..