The loop always needs at least 8 bytes for chunk_type and chunk_size. If fewer are left, bytestream2_get_le32 just returns 0 without reading any bytes, leading to an infinite loop.
Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com> --- libavcodec/webp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/webp.c b/libavcodec/webp.c index 47e9e9e..723a847 100644 --- a/libavcodec/webp.c +++ b/libavcodec/webp.c @@ -1387,7 +1387,7 @@ static int webp_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, } av_dict_free(&s->exif_metadata); - while (bytestream2_get_bytes_left(&gb) > 0) { + while (bytestream2_get_bytes_left(&gb) > 8) { char chunk_str[5] = { 0 }; chunk_type = bytestream2_get_le32(&gb); -- 2.1.4 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel