ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Aug 10 23:09:44 2019 +0200| [c4a88fb546b64179aff12c169239285932e570ac] | committer: Michael Niedermayer
avcodec/ffwavesynth: Fix integer overflow for some corner case values Fixes: left shift of negative value -14671840 Fixes: 16000/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5145977817661440 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c4a88fb546b64179aff12c169239285932e570ac --- libavcodec/ffwavesynth.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/ffwavesynth.c b/libavcodec/ffwavesynth.c index b319b3341a..e6d2606c2f 100644 --- a/libavcodec/ffwavesynth.c +++ b/libavcodec/ffwavesynth.c @@ -301,8 +301,8 @@ static int wavesynth_parse_extradata(AVCodecContext *avc) default: return AVERROR(EINVAL); } - in->amp0 = (int64_t)a1 << 32; - in->damp = (((int64_t)a2 << 32) - ((int64_t)a1 << 32)) / dt; + in->amp0 = (uint64_t)a1 << 32; + in->damp = (int64_t)(((uint64_t)a2 << 32) - ((uint64_t)a1 << 32)) / dt; } if (edata != edata_end) return AVERROR(EINVAL); _______________________________________________ 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".
