[FFmpeg-cvslog] avcodec/srtdec: fix potential overread.
Clément Bœsch
git at videolan.org
Sun Sep 15 22:20:44 CEST 2013
ffmpeg | branch: release/2.0 | Clément Bœsch <u at pkh.me> | Sun Sep 8 18:28:11 2013 +0200| [2dc6c5d46221dc04e545b7829c32efc093d76bdf] | committer: Alexander Strasser
avcodec/srtdec: fix potential overread.
(cherry picked from commit 3a54c221d574ec944db1eddf9df895808f32bf9e)
Signed-off-by: Alexander Strasser <eclipse7 at gmx.net>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2dc6c5d46221dc04e545b7829c32efc093d76bdf
---
libavcodec/srtdec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/srtdec.c b/libavcodec/srtdec.c
index 267561c..b16645a 100644
--- a/libavcodec/srtdec.c
+++ b/libavcodec/srtdec.c
@@ -204,7 +204,8 @@ static const char *read_ts(const char *buf, int *ts_start, int *ts_end,
"%*[ ]X1:%u X2:%u Y1:%u Y2:%u",
&hs, &ms, &ss, ts_start, &he, &me, &se, ts_end,
x1, x2, y1, y2);
- buf += strcspn(buf, "\n") + 1;
+ buf += strcspn(buf, "\n");
+ buf += !!*buf;
if (c >= 8) {
*ts_start = 100*(ss + 60*(ms + 60*hs)) + *ts_start/10;
*ts_end = 100*(se + 60*(me + 60*he)) + *ts_end /10;
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