KVM: x86: use u64_to_user_ptr()

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There is no danger to the kernel if 32-bit userspace provides a 64-bit
value that has the high bits set, but for whatever reason happens to
resolve to an address that has something mapped there.  KVM uses the
checked version of get_user() and put_user(), so any faults are caught
properly.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240404121327.3107131-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2024-04-04 08:13:13 -04:00

parent 0d7bf5e5b0

commit 8d2aec3b2d

1 changed files with 3 additions and 21 deletions

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arch/x86/kvm/x86.c

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