[FFmpeg-devel] [PATCH] avformat/utils: Add av_assert1 to preclude NULL + len, len != 0
Andreas Rheinhardt
andreas.rheinhardt at gmail.com
Mon Feb 15 01:20:42 EET 2021
Such a scenario is undefined behaviour and would also indicate a bug
in our code.
Suggested-by: James Almer <jamrial at gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
---
libavformat/utils.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libavformat/utils.c b/libavformat/utils.c
index cea6d4ca92..652758e98e 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1426,6 +1426,7 @@ static int parse_packet(AVFormatContext *s, AVPacket *pkt,
pkt->pts = pkt->dts = AV_NOPTS_VALUE;
pkt->pos = -1;
/* increment read pointer */
+ av_assert1(data || !len);
data = len ? data + len : data;
size -= len;
--
2.27.0
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