Warning: Permanently added '10.128.0.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.411233] audit: type=1400 audit(1521225719.017:7): avc: denied { map } for pid=4091 comm="syzkaller970268" path="/root/syzkaller970268116" 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 [ 29.663122] kasan: CONFIG_KASAN_INLINE enabled [ 29.667846] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.675232] general protection fault: 0000 [#1] SMP KASAN [ 29.680764] Dumping ftrace buffer: [ 29.684278] (ftrace buffer empty) [ 29.687957] Modules linked in: [ 29.691123] CPU: 0 PID: 4091 Comm: syzkaller970268 Not tainted 4.16.0-rc5+ #266 [ 29.698534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.707864] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 29.712932] RSP: 0018:ffff8801cb177c78 EFLAGS: 00010206 [ 29.718262] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845ff6f4 [ 29.725498] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 29.732740] RBP: ffff8801cb177c90 R08: 0000000000000000 R09: 1ffff1003962ef0b [ 29.739979] R10: ffff8801cb177820 R11: 0000000000000001 R12: ffff8801cc23d7d2 [ 29.747215] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801cb177d08 [ 29.754455] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000008231840 [ 29.762648] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 29.768507] CR2: 0000000001dcb7b0 CR3: 00000001cd486004 CR4: 00000000001606f0 [ 29.775747] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.782990] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.790229] Call Trace: [ 29.792788] smc_shutdown+0x3ed/0x540 [ 29.796559] SyS_shutdown+0x137/0x290 [ 29.800329] ? SyS_getsockopt+0x340/0x340 [ 29.804449] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 29.809957] ? do_fast_syscall_32+0x156/0xf9f [ 29.814422] ? SyS_getsockopt+0x340/0x340 [ 29.818538] do_fast_syscall_32+0x3ec/0xf9f [ 29.822831] ? do_int80_syscall_32+0x9c0/0x9c0 [ 29.827383] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.832110] ? syscall_return_slowpath+0x550/0x550 [ 29.837010] ? syscall_return_slowpath+0x2ac/0x550 [ 29.842098] ? prepare_exit_to_usermode+0x350/0x350 [ 29.847091] ? sysret32_from_system_call+0x5/0x3c [ 29.851905] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.856721] entry_SYSENTER_compat+0x70/0x7f [ 29.861097] RIP: 0023:0xf7f6ac99 [ 29.864428] RSP: 002b:00000000fffbb94c EFLAGS: 00000217 ORIG_RAX: 0000000000000175 [ 29.872105] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 29.879342] RDX: 0000000000000000 RSI: 000000000000016b RDI: 0000000000000003 [ 29.886580] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.893819] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.901060] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.908306] 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 [ 29.927370] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801cb177c78 [ 29.933994] ---[ end trace fbefad5d5dcaaa49 ]--- [ 29.938745] Kernel panic - not syncing: Fatal exception [ 29.944443] Dumping ftrace buffer: [ 29.947961] (ftrace buffer empty) [ 29.951639] Kernel Offset: disabled [ 29.955232] Rebooting in 86400 seconds..