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add check for positive xsize/ysize in ImagingFliDecode

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Yay295 2024-09-23 02:00:44 -05:00 committed by GitHub
parent 731bcda904
commit cf4fe7f68b
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1 changed files with 4 additions and 0 deletions
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src/libImaging/FliDecode.c
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@ -62,6 +62,10 @@ ImagingFliDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
state->errcode = IMAGING_CODEC_UNKNOWN; state->errcode = IMAGING_CODEC_UNKNOWN;
return -1; return -1;
} }
if (state->xsize <= 0 || state->ysize <= 0) {
state->errcode = IMAGING_CODEC_CONFIG;
return -1;
}
chunks = I16(ptr + 6); chunks = I16(ptr + 6);
ptr += 16; ptr += 16;