kvm: nVMX: Fix kernel panics induced by illegal INVEPT/INVVPID types
Bitwise shifts by amounts greater than or equal to the width of the left operand are undefined. A malicious guest can exploit this to crash a 32-bit host, due to the BUG_ON(1)'s in handle_{invept,invvpid}. Signed-off-by:Jim Mattson <jmattson@google.com> Message-Id: <1477496318-17681-1-git-send-email-jmattson@google.com> [Change 1UL to 1, to match the range check on the shift count. - Paolo] Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
parent
58e3948a
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