1 files changed, 6 insertions, 0 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 3c89e09599..1c246b9227 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -1902,6 +1902,12 @@ static int check_refcounts_l1(BlockDriverState *bs,
             continue;
         }
 
+        if (l1_table[i] & L1E_RESERVED_MASK) {
+            fprintf(stderr, "ERROR found L1 entry with reserved bits set: "
+                    "%" PRIx64 "\n", l1_table[i]);
+            res->corruptions++;
+        }
+
         l2_offset = l1_table[i] & L1E_OFFSET_MASK;
 
         /* Mark L2 table as used */