shorten: Break out of loop looking for fmt chunk if none is found
authorMartin Storsjö <martin@martin.st>
Wed, 11 Sep 2013 19:19:28 +0000 (22:19 +0300)
committerMartin Storsjö <martin@martin.st>
Thu, 12 Sep 2013 07:53:04 +0000 (10:53 +0300)
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
libavcodec/shorten.c

index 130bde6..c394c52 100644 (file)
@@ -221,6 +221,10 @@ static int decode_wave_header(AVCodecContext *avctx, const uint8_t *header,
     while (bytestream2_get_le32(&gb) != MKTAG('f', 'm', 't', ' ')) {
         len = bytestream2_get_le32(&gb);
         bytestream2_skip(&gb, len);
+        if (bytestream2_get_bytes_left(&gb) < 16) {
+            av_log(avctx, AV_LOG_ERROR, "no fmt chunk found\n");
+            return AVERROR_INVALIDDATA;
+        }
     }
     len = bytestream2_get_le32(&gb);