diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/parallels.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/parallels.c b/block/parallels.c index e2515dec81..799215e079 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -526,6 +526,11 @@ static int coroutine_fn parallels_co_create(BlockdevCreateOptions* opts, cl_size = DEFAULT_CLUSTER_SIZE; } + /* XXX What is the real limit here? This is an insanely large maximum. */ + if (cl_size >= INT64_MAX / MAX_PARALLELS_IMAGE_FACTOR) { + error_setg(errp, "Cluster size is too large"); + return -EINVAL; + } if (total_size >= MAX_PARALLELS_IMAGE_FACTOR * cl_size) { error_setg(errp, "Image size is too large for this cluster size"); return -E2BIG; |