[FFmpeg-cvslog] avformat/oggparseogm: Fix undefined shift in ogm_packet()
Michael Niedermayer
git at videolan.org
Sat Mar 10 03:48:51 EET 2018
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Thu Mar 8 23:14:04 2018 +0100| [010b7b30b721b90993e05e9ee6338e88bb8debb3] | committer: Michael Niedermayer
avformat/oggparseogm: Fix undefined shift in ogm_packet()
Fixes: shift exponent 48 is too large for 32-bit type 'int'
Fixes: Chromium bug 786793
Reported-by: Matt Wolenetz <wolenetz at google.com>
Reviewed-by: Matt Wolenetz <wolenetz at google.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=010b7b30b721b90993e05e9ee6338e88bb8debb3
---
libavformat/oggparseogm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/oggparseogm.c b/libavformat/oggparseogm.c
index ca6b62669d..4b4edf26ca 100644
--- a/libavformat/oggparseogm.c
+++ b/libavformat/oggparseogm.c
@@ -180,7 +180,7 @@ ogm_packet(AVFormatContext *s, int idx)
os->psize -= lb + 1;
while (lb--)
- os->pduration += p[lb+1] << (lb*8);
+ os->pduration += (uint64_t)p[lb+1] << (lb*8);
return 0;
}
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