set_string_binary crashes with called with val=NULL
Signed-off-by: Lukasz Marek <lukasz.m.lu...@gmail.com>
---
libavutil/opt.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/libavutil/opt.c b/libavutil/opt.c
index fca5354..bc62044 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -126,11 +126,15 @@ static int set_string_binary(void *obj, const AVOption
*o, const char *val, uint
{
int *lendst = (int *)(dst + 1);
uint8_t *bin, *ptr;
- int len = strlen(val);
+ int len;
av_freep(dst);
*lendst = 0;
+ if (!val)
+ return AVERROR(EINVAL);
+
+ len = strlen(val);
if (len & 1)
return AVERROR(EINVAL);
len /= 2;
--
1.9.1
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
