diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-10-02 03:04:51 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-10-03 11:14:17 +0200 |
| commit | 9a9034958aec8c30ee898db23cb691863801ea1f (patch) | |
| tree | ba24a92908b3ddb353a89957769b05ce09c9e657 /libavcodec/rasc.c | |
| parent | c905840e8c0a0d4bc3737879bfc038618ecba2b2 (diff) | |
avcodec/rasc: Fix off by 1 error in vertical coordinate
Fixes: out of array read
Fixes: 10311/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RASC_fuzzer-4856330905452544
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/rasc.c')
| -rw-r--r-- | libavcodec/rasc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/rasc.c b/libavcodec/rasc.c index fbbb134f4b..eb021681c6 100644 --- a/libavcodec/rasc.c +++ b/libavcodec/rasc.c @@ -272,9 +272,9 @@ static int decode_move(AVCodecContext *avctx, if (!s->frame2->data[0] || !s->frame1->data[0]) return AVERROR_INVALIDDATA; - b1 = s->frame1->data[0] + s->frame1->linesize[0] * (start_y + h) + start_x * s->bpp; - b2 = s->frame2->data[0] + s->frame2->linesize[0] * (start_y + h) + start_x * s->bpp; - e2 = s->frame2->data[0] + s->frame2->linesize[0] * (mov_y + h) + mov_x * s->bpp; + b1 = s->frame1->data[0] + s->frame1->linesize[0] * (start_y + h - 1) + start_x * s->bpp; + b2 = s->frame2->data[0] + s->frame2->linesize[0] * (start_y + h - 1) + start_x * s->bpp; + e2 = s->frame2->data[0] + s->frame2->linesize[0] * (mov_y + h - 1) + mov_x * s->bpp; if (type == 2) { for (int j = 0; j < h; j++) { |