From: Clément Bœsch <[email protected]>
If st is NULL, it means no 'fmt ' tag is found, but 'data' tag (which
needs a previous 'fmt ' tag to be parsed correctly and st initialized)
check will make sure st is never dereferenced in that case.
---
libavformat/wav.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/wav.c b/libavformat/wav.c
index c01121f..1bfe6d5 100644
--- a/libavformat/wav.c
+++ b/libavformat/wav.c
@@ -387,7 +387,7 @@ static int wav_read_header(AVFormatContext *s)
int rf64;
uint32_t tag, list_type;
AVIOContext *pb = s->pb;
- AVStream *st;
+ AVStream *st = NULL;
WAVContext *wav = s->priv_data;
int ret, got_fmt = 0;
int64_t next_tag_ofs, data_ofs = -1;
--
1.7.10.4
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