diff options
| -rw-r--r-- | block/qcow2-cluster.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 30eca26c47..179aa2c728 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -285,6 +285,9 @@ static int l2_allocate(BlockDriverState *bs, int l1_index) goto fail; } + /* The offset must fit in the offset field of the L1 table entry */ + assert((l2_offset & L1E_OFFSET_MASK) == l2_offset); + /* If we're allocating the table at offset 0 then something is wrong */ if (l2_offset == 0) { qcow2_signal_corruption(bs, true, -1, -1, "Preventing invalid " |