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add check for positive xsize/ysize in ImagingFliDecode
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@ -62,6 +62,10 @@ ImagingFliDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
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state->errcode = IMAGING_CODEC_UNKNOWN;
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state->errcode = IMAGING_CODEC_UNKNOWN;
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return -1;
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return -1;
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}
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}
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if (state->xsize <= 0 || state->ysize <= 0) {
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state->errcode = IMAGING_CODEC_CONFIG;
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return -1;
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}
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chunks = I16(ptr + 6);
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chunks = I16(ptr + 6);
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ptr += 16;
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ptr += 16;
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