From: Gleb Natapov <gleb@redhat.com>
Date: Tue, 1 Oct 2013 16:58:36 +0000 (+0300)
Subject: Fix NULL dereference in gfn_to_hva_prot()
X-Git-Tag: v3.12-rc4~22^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2ac07fe292ea41296049dfdbfeed203e2467ee7;p=pandora-kernel.git

Fix NULL dereference in gfn_to_hva_prot()

gfn_to_memslot() can return NULL or invalid slot. We need to check slot
validity before accessing it.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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