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author | Michael Niedermayer <michael@niedermayer.cc> | 2020-09-25 20:08:37 +0200 |
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committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-09 13:37:20 +0200 |
commit | 8b84fcb78f9ab25dbe1949433b58a33861118629 (patch) | |
tree | 6b796c35cd690bee601532c605b130bc729dbbc5 /libavcodec | |
parent | 91f7983a8959b6c5d14eed21bb575ecd88065bd9 (diff) | |
download | ffmpeg-8b84fcb78f9ab25dbe1949433b58a33861118629.tar.gz |
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 <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit abebd87764992dc22c82802bdc75d40aac14ab86)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
-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 285ca38efb..b2daaa7cc2 100644 --- a/libavcodec/dxtory.c +++ b/libavcodec/dxtory.c @@ -442,7 +442,7 @@ static int dx2_decode_slice_410(GetBitContext *gb, AVFrame *frame, V[x >> 2] = decode_sym(gb, lru[2]) ^ 0x80; } - Y += ystride << 2; + Y += ystride * 4; U += ustride; V += vstride; } |