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avcodec/pixlet: Fix shift exponent 4294967268 is too large for 32-bit type 'int'
Fixes: 1336/clusterfuzz-testcase-minimized-4761381930795008 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 1f5b6c7e1ee604b1525b3ab84ea6e8817fe66f36) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -154,7 +154,7 @@ static int read_low_coeffs(AVCodecContext *avctx, int16_t *dst, int size, int wi
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state = 120 * (escape + flag) + state - (120 * state >> 8);
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flag = 0;
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if (state * 4 > 0xFF || i >= size)
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if (state * 4ULL > 0xFF || i >= size)
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continue;
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nbits = ((state + 8) >> 5) + (state ? ff_clz(state) : 32) - 24;
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@ -260,7 +260,7 @@ static int read_high_coeffs(AVCodecContext *avctx, uint8_t *src, int16_t *dst, i
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flag = 0;
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if (state * 4 > 0xFF || i >= size)
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if (state * 4ULL > 0xFF || i >= size)
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continue;
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pfx = ((state + 8) >> 5) + (state ? ff_clz(state): 32) - 24;
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