libFLAC: More comment validation
When the allocation for obj->comment fails, set obj->num_comments
to zero.
Patch-from: lvqcl <lvqcl.mail@gmail.com>
diff --git a/src/libFLAC/metadata_iterators.c b/src/libFLAC/metadata_iterators.c
index 1e28925..4527878 100644
--- a/src/libFLAC/metadata_iterators.c
+++ b/src/libFLAC/metadata_iterators.c
@@ -2255,8 +2255,10 @@
if(block->num_comments == 0) {
block->comments = 0;
}
- else if(0 == (block->comments = calloc(block->num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry))))
+ else if(0 == (block->comments = calloc(block->num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
+ block->num_comments = 0;
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+ }
for(i = 0; i < block->num_comments; i++) {
status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, block->comments + i, block_length);