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swscale/utils: Fix xInc overflow

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Fixes: signed integer overflow: 2 * 1073741824 cannot be represented in type 'int'
Fixes: 67802/clusterfuzz-testcase-minimized-ffmpeg_SWS_fuzzer-6249515855183872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1a9eda65d0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-04-04 00:31:40 +02:00
parent 15205f8889
commit c657698796
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1 changed files with 1 additions and 1 deletions
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libswscale/utils.c
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@ -474,7 +474,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
filter[i * filterSize + j] = coeff; filter[i * filterSize + j] = coeff;
xx++; xx++;
} }
xDstInSrc += 2 * xInc; xDstInSrc += 2LL * xInc;
} }
} }