diff --git a/src/libFLAC/format.c b/src/libFLAC/format.c
index 4d0d832..5215c56 100644
--- a/src/libFLAC/format.c
+++ b/src/libFLAC/format.c
@@ -573,10 +573,17 @@ FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_s
 	FLAC__ASSERT(object->capacity_by_order > 0 || (0 == object->parameters && 0 == object->raw_bits));
 
 	if(object->capacity_by_order < max_partition_order) {
-		if(0 == (object->parameters = realloc(object->parameters, sizeof(unsigned)*(1 << max_partition_order))))
+		void *oldptr;
+		oldptr = object->parameters;
+		if(0 == (object->parameters = realloc(object->parameters, sizeof(unsigned)*(1 << max_partition_order)))) {
+			free(oldptr);
 			return false;
-		if(0 == (object->raw_bits = realloc(object->raw_bits, sizeof(unsigned)*(1 << max_partition_order))))
+		}
+		oldptr = object->raw_bits;
+		if(0 == (object->raw_bits = realloc(object->raw_bits, sizeof(unsigned)*(1 << max_partition_order)))) {
+			free(oldptr);
 			return false;
+		}
 		memset(object->raw_bits, 0, sizeof(unsigned)*(1 << max_partition_order));
 		object->capacity_by_order = max_partition_order;
 	}
diff --git a/src/libFLAC/metadata_object.c b/src/libFLAC/metadata_object.c
index 909dab5..1bfa0b4 100644
--- a/src/libFLAC/metadata_object.c
+++ b/src/libFLAC/metadata_object.c
@@ -954,8 +954,13 @@ FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMe
 			free(object->data.seek_table.points);
 			object->data.seek_table.points = 0;
 		}
-		else if(0 == (object->data.seek_table.points = realloc(object->data.seek_table.points, new_size)))
-			return false;
+		else {
+			void *oldptr = object->data.seek_table.points;
+			if(0 == (object->data.seek_table.points = realloc(object->data.seek_table.points, new_size))) {
+				free(oldptr);
+				return false;
+			}
+		}
 
 		/* if growing, set new elements to placeholders */
 		if(new_size > old_size) {
@@ -1200,9 +1205,13 @@ FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__St
 			free(object->data.vorbis_comment.comments);
 			object->data.vorbis_comment.comments = 0;
 		}
-		else if(0 == (object->data.vorbis_comment.comments = realloc(object->data.vorbis_comment.comments, new_size))) {
-			object->data.vorbis_comment.num_comments = 0;
-			return false;
+		else {
+			FLAC__StreamMetadata_VorbisComment_Entry *oldptr = object->data.vorbis_comment.comments;
+			if(0 == (object->data.vorbis_comment.comments = realloc(object->data.vorbis_comment.comments, new_size))) {
+				vorbiscomment_entry_array_delete_(oldptr, object->data.vorbis_comment.num_comments);
+				object->data.vorbis_comment.num_comments = 0;
+				return false;
+			}
 		}
 
 		/* if growing, zero all the length/pointers of new elements */
@@ -1504,8 +1513,13 @@ FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__St
 			free(track->indices);
 			track->indices = 0;
 		}
-		else if(0 == (track->indices = realloc(track->indices, new_size)))
-			return false;
+		else {
+			void *oldptr = track->indices;
+			if(0 == (track->indices = realloc(track->indices, new_size))) {
+				free(oldptr);
+				return false;
+			}
+		}
 
 		/* if growing, zero all the lengths/pointers of new elements */
 		if(new_size > old_size)
@@ -1599,8 +1613,13 @@ FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMet
 			free(object->data.cue_sheet.tracks);
 			object->data.cue_sheet.tracks = 0;
 		}
-		else if(0 == (object->data.cue_sheet.tracks = realloc(object->data.cue_sheet.tracks, new_size)))
-			return false;
+		else {
+			void *oldptr = object->data.cue_sheet.tracks;
+			if(0 == (object->data.cue_sheet.tracks = realloc(object->data.cue_sheet.tracks, new_size))) {
+				free(oldptr);
+				return false;
+			}
+		}
 
 		/* if growing, zero all the lengths/pointers of new elements */
 		if(new_size > old_size)
diff --git a/src/libFLAC/stream_decoder.c b/src/libFLAC/stream_decoder.c
index 231422c..6dc9834 100644
--- a/src/libFLAC/stream_decoder.c
+++ b/src/libFLAC/stream_decoder.c
@@ -763,7 +763,9 @@ FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__
 	FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
 
 	if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
+		void *oldptr = decoder->private_->metadata_filter_ids;
 		if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
+			free(oldptr);
 			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 			return false;
 		}
@@ -822,7 +824,9 @@ FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__S
 	FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
 
 	if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
+		void *oldptr = decoder->private_->metadata_filter_ids;
 		if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
+			free(oldptr);
 			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 			return false;
 		}
@@ -1653,6 +1657,7 @@ FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_
 {
 	FLAC__uint32 i, x;
 	FLAC__uint64 xx;
+	void *oldptr;
 
 	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
 
@@ -1663,7 +1668,9 @@ FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_
 	decoder->private_->seek_table.data.seek_table.num_points = length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
 
 	/* use realloc since we may pass through here several times (e.g. after seeking) */
+	oldptr = decoder->private_->seek_table.data.seek_table.points;
 	if(0 == (decoder->private_->seek_table.data.seek_table.points = safe_realloc_mul_2op_(decoder->private_->seek_table.data.seek_table.points, decoder->private_->seek_table.data.seek_table.num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint)))) {
+		free(oldptr);
 		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
 		return false;
 	}