ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Nov 28 17:26:05 2015 +0100| [4f03bebc79f76df3a3e5bb9e1bc32baabfb7797c] | committer: Michael Niedermayer
avcodec/utils: Use 64bit for aspect ratio calculation in avcodec_string() Fixes integer overflow Fixes: 3a45b2ae02f2cf12b7bd99543cdcdae5/asan_heap-oob_1dff502_8022_899f75e1e81046ebd7b6c2394a1419f4.mov Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4f03bebc79f76df3a3e5bb9e1bc32baabfb7797c --- libavcodec/utils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/utils.c b/libavcodec/utils.c index e279147..e018e44 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -2760,8 +2760,8 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) if (enc->sample_aspect_ratio.num) { av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, - enc->width * enc->sample_aspect_ratio.num, - enc->height * enc->sample_aspect_ratio.den, + enc->width * (int64_t)enc->sample_aspect_ratio.num, + enc->height * (int64_t)enc->sample_aspect_ratio.den, 1024 * 1024); snprintf(buf + strlen(buf), buf_size - strlen(buf), " [SAR %d:%d DAR %d:%d]", _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
