X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fdcstr.c;h=9ddccc7f2d48c021564251f74a9b8ca12fb86cef;hb=2086d635c36c2865d1a0145c56e448b30af59ba0;hp=9041a8653953b6eadee3814555fe6d0ece3ca680;hpb=e645d7a6d452df83cedcbb1d6708429ceea156da;p=ffmpeg

diff --git a/libavformat/dcstr.c b/libavformat/dcstr.c
index 9041a865395..9ddccc7f2d4 100644
--- a/libavformat/dcstr.c
+++ b/libavformat/dcstr.c
@@ -43,6 +43,8 @@ static int dcstr_read_header(AVFormatContext *s)
     st->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;
     st->codecpar->channels    = avio_rl32(s->pb);
     st->codecpar->sample_rate = avio_rl32(s->pb);
+    if (st->codecpar->sample_rate <= 0)
+        return AVERROR_INVALIDDATA;
     codec                  = avio_rl32(s->pb);
     align                  = avio_rl32(s->pb);
     avio_skip(s->pb, 4);