diff options
| -rw-r--r-- | block/qcow2.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index e8cbcc1ec1..b524b0c53f 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -4355,6 +4355,11 @@ qcow2_co_pwritev_compressed_part(BlockDriverState *bs, return -EINVAL; } + if (offset_into_cluster(s, bytes) && + (offset + bytes) != (bs->total_sectors << BDRV_SECTOR_BITS)) { + return -EINVAL; + } + while (bytes && aio_task_pool_status(aio) == 0) { uint64_t chunk_size = MIN(bytes, s->cluster_size); |