From 282a4718576d6928b6c5900db89b45d83556407a Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Wed, 16 Jan 2019 10:26:53 +0100
Subject: [PATCH] avformat/hcom: check probe buffer size

---
 libavformat/hcom.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/hcom.c b/libavformat/hcom.c
index 933ecce373..35515cc5b2 100644
--- a/libavformat/hcom.c
+++ b/libavformat/hcom.c
@@ -27,6 +27,8 @@
 
 static int hcom_probe(AVProbeData *p)
 {
+    if (p->buf_size < 132)
+        return 0;
     if (!memcmp(p->buf+65, "FSSD", 4) &&
         !memcmp(p->buf+128, "HCOM", 4))
         return AVPROBE_SCORE_MAX;