[FFmpeg-devel] [PATCH v2 7/8] avformat/wavdec: fix s337m/spdif probing beyond data_end
Nicolas Gaullier
nicolas.gaullier at cji.paris
Wed Jan 15 12:56:01 EET 2020
---
libavformat/wavdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index 3571733817..d8a27c79cf 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -77,7 +77,7 @@ static void set_spdif_s337m(AVFormatContext *s, WAVDemuxContext *wav)
ret = AVERROR(ENOMEM);
} else {
int64_t pos = avio_tell(s->pb);
- len = ret = avio_read(s->pb, buf, len);
+ len = ret = avio_read(s->pb, buf, FFMIN(len, wav->data_end - pos));
if (len >= 0) {
ret = ff_spdif_probe(buf, len, &codec);
if (ret > AVPROBE_SCORE_EXTENSION) {
--
2.14.1.windows.1
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