diff options
Diffstat (limited to 'tools')
-rw-r--r-- | tools/libxc/xc_dom.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/libxc/xc_dom.h b/tools/libxc/xc_dom.h index 5968e7bc2c..86e23eea9c 100644 --- a/tools/libxc/xc_dom.h +++ b/tools/libxc/xc_dom.h @@ -342,6 +342,8 @@ static inline xen_pfn_t xc_dom_p2m_host(struct xc_dom_image *dom, xen_pfn_t pfn) { if (dom->shadow_enabled) return pfn; + if (pfn < dom->rambase_pfn || pfn >= dom->rambase_pfn + dom->total_pages) + return INVALID_MFN; return dom->p2m_host[pfn - dom->rambase_pfn]; } @@ -350,6 +352,8 @@ static inline xen_pfn_t xc_dom_p2m_guest(struct xc_dom_image *dom, { if (xc_dom_feature_translated(dom)) return pfn; + if (pfn < dom->rambase_pfn || pfn >= dom->rambase_pfn + dom->total_pages) + return INVALID_MFN; return dom->p2m_host[pfn - dom->rambase_pfn]; } |