David Rientjes b86bc2858b KVM: SVM: prevent DBG_DECRYPT and DBG_ENCRYPT overflow ...

This ensures that the address and length provided to DBG_DECRYPT and
DBG_ENCRYPT do not cause an overflow.

At the same time, pass the actual number of pages pinned in memory to
sev_unpin_memory() as a cleanup.

Reported-by: Cfir Cohen <cfir@google.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2019-04-05 20:49:42 +02:00

185 KiB

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