[FFmpeg-cvslog] avformat/rpl: Use 64bit for duration computation
Michael Niedermayer
git at videolan.org
Sat Sep 24 20:22:56 EEST 2022
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Sep 18 16:49:26 2022 +0200| [529f64b2eb98e0c3ae4944abd5d01fa7c1def047] | committer: Michael Niedermayer
avformat/rpl: Use 64bit for duration computation
Fixes: signed integer overflow: 24709512 * 88 cannot be represented in type 'int'
Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-6737973728641024
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=529f64b2eb98e0c3ae4944abd5d01fa7c1def047
---
libavformat/rpl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/rpl.c b/libavformat/rpl.c
index d025589bfc..3ef6fda386 100644
--- a/libavformat/rpl.c
+++ b/libavformat/rpl.c
@@ -279,7 +279,7 @@ static int rpl_read_header(AVFormatContext *s)
error |= read_line(pb, line, sizeof(line)); // size of "helpful" sprite
if (vst) {
error |= read_line(pb, line, sizeof(line)); // offset to key frame list
- vst->duration = number_of_chunks * rpl->frames_per_chunk;
+ vst->duration = number_of_chunks * (int64_t)rpl->frames_per_chunk;
}
// Read the index
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