14 lines
630 B
Diff
14 lines
630 B
Diff
diff --git a/third_party/libtiff/tif_pixarlog.c b/third_party/libtiff/tif_pixarlog.c
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index 5c0346b6e..2e22b3318 100644
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--- a/third_party/libtiff/tif_pixarlog.c
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+++ b/third_party/libtiff/tif_pixarlog.c
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@@ -882,7 +882,7 @@ static int PixarLogDecode(TIFF *tif, uint8_t *op, tmsize_t occ, uint16_t s)
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return (0);
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}
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/* Check that we will not fill more than what was allocated */
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- if ((tmsize_t)sp->stream.avail_out > sp->tbuf_size)
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+ if (sp->tbuf_size < 0 || sp->stream.avail_out > (uInt) sp->tbuf_size)
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{
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TIFFErrorExtR(tif, module, "sp->stream.avail_out > sp->tbuf_size");
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return (0);
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