[FFmpeg-devel] [PATCH v1] avformat/mpeg: fix CID 1455132: Memory - illegal accesses (UNINIT)

[lance.lmwang at gmail.com]

From: Limin Wang <lance.lmwang at gmail.com>

Before header_str is initialized, the code is possible to goto end and free the
header_str and cause invalid access.

Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
---
 libavformat/mpeg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c
index c33401f1a0..ebc064931a 100644
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@@ -720,7 +720,7 @@ static int vobsub_read_header(AVFormatContext *s)
     int i, ret = 0, header_parsed = 0, langidx = 0;
     MpegDemuxContext *vobsub = s->priv_data;
     size_t fname_len;
-    char *header_str;
+    char *header_str = NULL;
     AVBPrint header;
     int64_t delay = 0;
     AVStream *st = NULL;
-- 
2.21.0