ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Apr 26 21:19:13 2020 +0200| [e9a4c4fe9918220be492a4a9d74c2293fd706be3] | committer: Michael Niedermayer
avcodec/wmalosslessdec: Fix integer overflows in revert_inter_ch_decorr() Fixes: signed integer overflow: -717241856 + -1434459904 cannot be represented in type 'int' Fixes: 21405/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5677143666458624 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=e9a4c4fe9918220be492a4a9d74c2293fd706be3 --- libavcodec/wmalosslessdec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index c6c13fb417..7ef7c93dbd 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -790,8 +790,8 @@ static void revert_inter_ch_decorr(WmallDecodeCtx *s, int tile_size) else if (s->is_channel_coded[0] || s->is_channel_coded[1]) { int icoef; for (icoef = 0; icoef < tile_size; icoef++) { - s->channel_residues[0][icoef] -= s->channel_residues[1][icoef] >> 1; - s->channel_residues[1][icoef] += s->channel_residues[0][icoef]; + s->channel_residues[0][icoef] -= (unsigned)(s->channel_residues[1][icoef] >> 1); + s->channel_residues[1][icoef] += (unsigned) s->channel_residues[0][icoef]; } } } _______________________________________________ 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".
