ffmpeg | branch: release/4.1 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jun 16 16:01:45 2019 +0200| [9b8a58fa78062ddee07a54237c77dcdc6186aab1] | committer: Michael Niedermayer
avcodec/bintext: Check font height Fixes: division by zero Fixes: 15257/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BINTEXT_fuzzer-5757352881422336 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit bfb58bdd7015a6df2d130c92cf284d6a2362f3df) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9b8a58fa78062ddee07a54237c77dcdc6186aab1 --- libavcodec/bintext.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/bintext.c b/libavcodec/bintext.c index d85f2c2dd4..c310035830 100644 --- a/libavcodec/bintext.c +++ b/libavcodec/bintext.c @@ -63,6 +63,10 @@ static av_cold int decode_init(AVCodecContext *avctx) av_log(avctx, AV_LOG_ERROR, "not enough extradata\n"); return AVERROR_INVALIDDATA; } + if (!s->font_height) { + av_log(avctx, AV_LOG_ERROR, "invalid font height\n"); + return AVERROR_INVALIDDATA; + } } else { s->font_height = 8; s->flags = 0; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
