diff options
| author | Michael Niedermayer <[email protected]> | 2020-09-25 20:08:37 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2021-10-17 21:34:53 +0200 |
| commit | 92a47b7a82ac6c0869e7e072fad1dc9bfd322357 (patch) | |
| tree | e99c9b0e3f0821ac6f9e59a7d0dd52370f17d473 | |
| parent | 00440fff9fbf1f7634129c192d2248aeeeb68ccf (diff) | |
avcodec/dxtory: Fix negative shift in dx2_decode_slice_410()
Fixes: left shift of negative value -768
Fixes: 25574/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXTORY_fuzzer-6012596027916288
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <[email protected]>
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit abebd87764992dc22c82802bdc75d40aac14ab86)
Signed-off-by: Michael Niedermayer <[email protected]>
| -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 578ac02ef5..a4b0db658e 100644 --- a/libavcodec/dxtory.c +++ b/libavcodec/dxtory.c @@ -399,7 +399,7 @@ static int dx2_decode_slice_410(GetBitContext *gb, int width, int height, V[x >> 2] = decode_sym(gb, lru[2]) ^ 0x80; } - Y += ystride << 2; + Y += ystride * 4; U += ustride; V += vstride; } |