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-rw-r--r--mm/nommu.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index 5d8ae08..1d32fe8 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -105,7 +105,11 @@ unsigned int kobjsize(const void *objp)
{
struct page *page;
- if (!objp || !((page = virt_to_page(objp))))
+ /*
+ * If the object we have should not have ksize performed on it,
+ * return size of 0
+ */
+ if (!objp || (unsigned long)objp >= memory_end || !((page = virt_to_page(objp))))
return 0;
if (PageSlab(page))
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