[FFmpeg-devel] [PATCH 1/8] avformat/avio: check for null context to avoid uninitialized pointer access

[vdixit at akamai.com]

From: Vishwanath Dixit <vdixit at akamai.com>

---
 libavformat/avio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/avio.c b/libavformat/avio.c
index 63e8287..18e58ae 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -420,7 +420,7 @@ int ffurl_read_complete(URLContext *h, unsigned char *buf, int size)
 
 int ffurl_write(URLContext *h, const unsigned char *buf, int size)
 {
-    if (!(h->flags & AVIO_FLAG_WRITE))
+    if (!h || !(h->flags & AVIO_FLAG_WRITE))
         return AVERROR(EIO);
     /* avoid sending too big packets */
     if (h->max_packet_size && size > h->max_packet_size)
-- 
1.9.1