diff options
Diffstat (limited to 'tools/libxc')
| -rw-r--r-- | tools/libxc/xc_dom_core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/libxc/xc_dom_core.c b/tools/libxc/xc_dom_core.c index 5f188c1321..3df71714aa 100644 --- a/tools/libxc/xc_dom_core.c +++ b/tools/libxc/xc_dom_core.c @@ -511,7 +511,8 @@ int xc_dom_alloc_segment(struct xc_dom_image *dom, seg->vstart = start; seg->pfn = (seg->vstart - dom->parms.virt_base) / page_size; - if ( pages > dom->total_pages || /* double test avoids overflow probs */ + if ( pages > dom->total_pages || /* multiple test avoids overflow probs */ + seg->pfn > dom->total_pages || pages > dom->total_pages - seg->pfn) { xc_dom_panic(dom->xch, XC_OUT_OF_MEMORY, |