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#514: Fix integer overflow in stripbytecounts computation.

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Harald Kuhr 2020-01-14 21:17:59 +01:00
parent 7a9523690c
commit d9d8419803
1 changed files with 2 additions and 2 deletions
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imageio/imageio-tiff/src/main/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageWriter.java
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@ -314,8 +314,8 @@ public final class TIFFImageWriter extends ImageWriterBase {
long streamPosition = imageOutput.getStreamPosition(); long streamPosition = imageOutput.getStreamPosition();
long ifdSize = tiffWriter.computeIFDSize(entries.values()); long ifdSize = tiffWriter.computeIFDSize(entries.values());
long stripOffset = streamPosition + 4 + ifdSize + 4; long stripOffset = streamPosition + 4 + ifdSize + 4;
long stripByteCount = (renderedImage.getWidth() * renderedImage.getHeight() * pixelSize + 7) / 8; long stripByteCount = ((long) renderedImage.getWidth() * renderedImage.getHeight() * pixelSize + 7L) / 8L;
entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, TIFF.TYPE_LONG, stripOffset)); entries.put(TIFF.TAG_STRIP_OFFSETS, new TIFFEntry(TIFF.TAG_STRIP_OFFSETS, TIFF.TYPE_LONG, stripOffset));
entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, TIFF.TYPE_LONG, stripByteCount)); entries.put(TIFF.TAG_STRIP_BYTE_COUNTS, new TIFFEntry(TIFF.TAG_STRIP_BYTE_COUNTS, TIFF.TYPE_LONG, stripByteCount));