WARNING in handle_ept_misconfig

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 68d7a45e Linux 4.14.113
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10be0dc4a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=dbf1fde4d7489e1c
dashboard link: https://syzkaller.appspot.com/bug?extid=9d5d8e8c20db4deefb50
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f5c43d200000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=115ab87f200000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+9d5d8e...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 7145 at arch/x86/kvm/vmx.c:6968
handle_ept_misconfig+0xa9/0x450 arch/x86/kvm/vmx.c:6968
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 7145 Comm: syz-executor107 Not tainted 4.14.113 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x138/0x19c lib/dump_stack.c:53
panic+0x1f2/0x438 kernel/panic.c:182
__warn.cold+0x2f/0x34 kernel/panic.c:546
report_bug+0x216/0x254 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:944
RIP: 0010:handle_ept_misconfig+0xa9/0x450 arch/x86/kvm/vmx.c:6968
RSP: 0018:ffff88808d3ffa28 EFLAGS: 00010297
RAX: ffff88807aaa2180 RBX: ffffffff8117c650 RCX: 7ff0000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880869d8d80
RBP: ffff88808d3ffa50 R08: 0000000000000007 R09: ffff88808d3ff940
R10: 0000000000000000 R11: ffff88807aaa2180 R12: ffff8880869d8d80
R13: 00000000fffffff2 R14: 0000000000000031 R15: ffff888072390918
vmx_handle_exit+0x210/0x12b0 arch/x86/kvm/vmx.c:9194
vcpu_enter_guest+0xee3/0x5270 arch/x86/kvm/x86.c:7225
vcpu_run arch/x86/kvm/x86.c:7288 [inline]
kvm_arch_vcpu_ioctl_run+0x31a/0x1010 arch/x86/kvm/x86.c:7455
kvm_vcpu_ioctl+0x401/0xd10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2588
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x7b9/0x1070 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x44ac09
RSP: 002b:00007f30451cbce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000006dfc48 RCX: 000000000044ac09
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00000000006dfc40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dfc4c
R13: 00007fff91f01a3f R14: 00007f30451cc9c0 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..


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