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ffmpeg.wasm-core
Commit 610dd745 authored by Michael Niedermayer's avatar Michael Niedermayer
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avcodec/diracdsp: Fix integer overflow in PUT_SIGNED_RECT_CLAMPED() 

Fixes: runtime error: signed integer overflow: 2147483646 + 2048 cannot be represented in type 'int'
Fixes: 4479/clusterfuzz-testcase-minimized-6529894147162112

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
parent 5e9a13a5
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libavcodec/diracdsp.c
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......@@ -159,10 +159,10 @@ static void put_signed_rect_clamped_ ## PX ## bit_c(uint8_t *_dst, int dst_strid
int32_t *src = (int32_t *)_src; \
for (y = 0; y < height; y++) { \
for (x = 0; x < width; x+=4) { \
dst[x ] = av_clip_uintp2(src[x ] + (1 << (PX - 1)), PX); \
dst[x+1] = av_clip_uintp2(src[x+1] + (1 << (PX - 1)), PX); \
dst[x+2] = av_clip_uintp2(src[x+2] + (1 << (PX - 1)), PX); \
dst[x+3] = av_clip_uintp2(src[x+3] + (1 << (PX - 1)), PX); \
dst[x ] = av_clip_uintp2(src[x ] + (1U << (PX - 1)), PX); \
dst[x+1] = av_clip_uintp2(src[x+1] + (1U << (PX - 1)), PX); \
dst[x+2] = av_clip_uintp2(src[x+2] + (1U << (PX - 1)), PX); \
dst[x+3] = av_clip_uintp2(src[x+3] + (1U << (PX - 1)), PX); \
} \
dst += dst_stride >> 1; \
src += src_stride >> 2; \
......
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