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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-02 14:59:13 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-04 16:54:11 +0200 |
| commit | 3291d994b76db4b6e67c8467367ce68f79785e60 (patch) | |
| tree | b03586f89de8c4522a6ec14e62a4425674979558 | |
| parent | 05872c67a4cad1f28c41121314d7cf76c1fe3163 (diff) | |
| download | ffmpeg-3291d994b76db4b6e67c8467367ce68f79785e60.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>
| -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 bc95e0e7e1..7143a11e2e 100644 --- a/libavcodec/dxtory.c +++ b/libavcodec/dxtory.c @@ -717,7 +717,7 @@ static int dx2_decode_slice_420(GetBitContext *gb, AVFrame *frame, V[huvborder] = decode_sym(gb, lru[2]) ^ 0x80; } - Y += ystride << 1; + Y += ystride * 2; U += ustride; V += vstride; } |