diff options
Diffstat (limited to 'block/qcow2-refcount.c')
| -rw-r--r-- | block/qcow2-refcount.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 1c246b9227..4614572252 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -2089,9 +2089,17 @@ static int check_refblocks(BlockDriverState *bs, BdrvCheckResult *res, for(i = 0; i < s->refcount_table_size; i++) { uint64_t offset, cluster; - offset = s->refcount_table[i]; + offset = s->refcount_table[i] & REFT_OFFSET_MASK; cluster = offset >> s->cluster_bits; + if (s->refcount_table[i] & REFT_RESERVED_MASK) { + fprintf(stderr, "ERROR refcount table entry %" PRId64 " has " + "reserved bits set\n", i); + res->corruptions++; + *rebuild = true; + continue; + } + /* Refcount blocks are cluster aligned */ if (offset_into_cluster(s, offset)) { fprintf(stderr, "ERROR refcount block %" PRId64 " is not " |