ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Wed Feb 22 00:42:23 2017 +0100| [24f6559bd2417b30c848d27523c88949d537a83c] | committer: Michael Niedermayer
avcodec/rv34: Fix runtime error: signed integer overflow: -2 + -2147483648 cannot be represented in type 'int' Fixes: 642/clusterfuzz-testcase-558358808074649 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=24f6559bd2417b30c848d27523c88949d537a83c --- libavcodec/rv34.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c index aca8382..f1c93cf 100644 --- a/libavcodec/rv34.c +++ b/libavcodec/rv34.c @@ -866,6 +866,11 @@ static int rv34_decode_mv(RV34DecContext *r, int block_type) for(i = 0; i < num_mvs[block_type]; i++){ r->dmv[i][0] = get_interleaved_se_golomb(gb); r->dmv[i][1] = get_interleaved_se_golomb(gb); + if (r->dmv[i][0] == INVALID_VLC || + r->dmv[i][1] == INVALID_VLC) { + r->dmv[i][0] = r->dmv[i][1] = 0; + return AVERROR_INVALIDDATA; + } } switch(block_type){ case RV34_MB_TYPE_INTRA: _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
