RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

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 <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-02-22 00:42:23 +01:00
parent 1ad60e4e70
commit 24f6559bd2
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/rv34.c
View File

@ -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: