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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-02 14:59:13 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-02 14:18:20 +0100 |
| commit | 106103d7b50cb119d03611203e11cf5acc1edab0 (patch) | |
| tree | 61cdda34ff58a669c6dd310a0b1ae79470d388b7 | |
| parent | 5f554b5c0f9fcf29e8d574771b60a22bc2b3bba4 (diff) | |
| download | ffmpeg-106103d7b50cb119d03611203e11cf5acc1edab0.tar.gz | |
avcodec/dxtory: Fix negative stride shift in dx2_decode_slice_420()
Fixes: left shift of negative value -640
Fixes: 26044/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXTORY_fuzzer-5631057602543616
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>
(cherry picked from commit 3291d994b76db4b6e67c8467367ce68f79785e60)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dxtory.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dxtory.c b/libavcodec/dxtory.c index 7f684ca787..e5d710069d 100644 --- a/libavcodec/dxtory.c +++ b/libavcodec/dxtory.c @@ -501,7 +501,7 @@ static int dx2_decode_slice_420(GetBitContext *gb, AVFrame *frame, V[x >> 1] = decode_sym(gb, lru[2]) ^ 0x80; } - Y += ystride << 1; + Y += ystride * 2; U += ustride; V += vstride; } |