X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fbintext.c;h=e03a31e447483773b7cd621d77dc2787b4da94b2;hb=52673ab18a8f241e37aea83236ffe0fa84b78655;hp=69c7ab5039cfd548c21ffa8821ae62a7996bdc23;hpb=f9a2d0c3feccab94a86c92396f3e36110dc2227b;p=ffmpeg

diff --git a/libavformat/bintext.c b/libavformat/bintext.c
index 69c7ab5039c..e03a31e4474 100644
--- a/libavformat/bintext.c
+++ b/libavformat/bintext.c
@@ -261,7 +261,9 @@ static const uint8_t idf_magic[] = {
 
 static int idf_probe(AVProbeData *p)
 {
-    if (!memcmp(p->buf, idf_magic, FFMIN(sizeof(idf_magic), p->buf_size)))
+    if (p->buf_size < sizeof(idf_magic))
+        return 0;
+    if (!memcmp(p->buf, idf_magic, sizeof(idf_magic)))
         return AVPROBE_SCORE_MAX;
     return 0;
 }