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Posted to commits@pdfbox.apache.org by ti...@apache.org on 2025/07/13 08:00:29 UTC
svn commit: r1927177 - in /pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading: PDShadingType4.java PDTriangleBasedShadingType.java
Author: tilman
Date: Sun Jul 13 08:00:28 2025
New Revision: 1927177
URL: http://svn.apache.org/viewvc?rev=1927177&view=rev
Log:
PDFBOX-6035: prevent infinite loop
Modified:
pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDShadingType4.java
pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDTriangleBasedShadingType.java
Modified: pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDShadingType4.java
URL: http://svn.apache.org/viewvc/pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDShadingType4.java?rev=1927177&r1=1927176&r2=1927177&view=diff
==============================================================================
--- pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDShadingType4.java (original)
+++ pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDShadingType4.java Sun Jul 13 08:00:28 2025
@@ -192,7 +192,8 @@ public class PDShadingType4 extends PDTr
}
break;
default:
- LOG.warn("bad flag: " + flag);
+ LOG.error("bad flag " + flag + ", aborting");
+ eof = true;
break;
}
}
Modified: pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDTriangleBasedShadingType.java
URL: http://svn.apache.org/viewvc/pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDTriangleBasedShadingType.java?rev=1927177&r1=1927176&r2=1927177&view=diff
==============================================================================
--- pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDTriangleBasedShadingType.java (original)
+++ pdfbox/branches/3.0/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/shading/PDTriangleBasedShadingType.java Sun Jul 13 08:00:28 2025
@@ -197,6 +197,10 @@ abstract class PDTriangleBasedShadingTyp
PDRange rangeX, PDRange rangeY, PDRange[] colRangeTab,
Matrix matrix, AffineTransform xform) throws IOException
{
+ if (bitsPerCoordinate <= 0 || numberOfColorComponents <= 0 || bitsPerColorComponent <= 0)
+ {
+ throw new IOException("nothing to read, check bitsPerCoordinate, numberOfColorComponents and bitsPerColorComponent");
+ }
float[] colorComponentTab = new float[numberOfColorComponents];
long x = input.readBits(bitsPerCoordinate);
long y = input.readBits(bitsPerCoordinate);