avformat/vqf: Check avio_read() in add_metadata()

Fixes: use of uninitialized data Fixes: 383825642/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5380168801124352

Michael Niedermayer committed 1 year ago

Commit c43dbec1 parent 54897da1 file · +2 −1Browse files

Unified · Split

@@ -63,7 +63,8 @@ static void add_metadata(AVFormatContext *s, uint32_t tag, · 62 unmodified lines
63	63	buf = av_malloc(len+1);
64	64	if (!buf)
65	65	return;
66		− avio_read(s->pb, buf, len);
	66	+ if (len != avio_read(s->pb, buf, len))
	67	+ return;
67	68	buf[len] = 0;
68	69	AV_WL32(key, tag);
69	70	av_dict_set(&s->metadata, key, buf, AV_DICT_DONT_STRDUP_VAL);

Keyboard shortcuts