KVM: x86: Initialize tdp_level during vCPU creation

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Initialize vcpu->arch.tdp_level during vCPU creation to avoid consuming
garbage if userspace calls KVM_RUN without first calling KVM_SET_CPUID.

Fixes: e93fd3b3e8 ("KVM: x86/mmu: Capture TDP level when updating CPUID")
Reported-by: syzbot+904752567107eefb728c@syzkaller.appspotmail.com
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200527085400.23759-1-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-05-27 01:54:00 -07:00 • committed by Paolo Bonzini

parent 6c0238c4a6

commit 7d2e8748af

1 changed files with 1 additions and 0 deletions

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arch/x86/kvm/x86.c

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