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-rw-r--r--libavformat/bintext.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/bintext.c b/libavformat/bintext.c
index 69c7ab5039..e03a31e447 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;
}