KVM: SEV: Explicitly validate the dst buffer for debug operations

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When encrypting/decrypting guest memory, explicitly check that the
destination is non-NULL and doesn't wrap instead of subtly relying on
sev_pin_memory() to perform the check.  This will allow adding and using
a more focused single-page pinning helper.

Link: https://patch.msgid.link/20260501203537.2120074-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Sean Christopherson 2026-05-01 13:35:34 -07:00

parent 6edd35e77a

commit cb32e89554

1 changed files with 4 additions and 2 deletions

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arch/x86/kvm/svm/sev.c

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