File openexr-CVE-2021-3605.patch of Package openexr.20112

Index: openexr-2.1.0/IlmImf/ImfRleCompressor.cpp
===================================================================
--- openexr-2.1.0.orig/IlmImf/ImfRleCompressor.cpp	2021-06-16 14:12:01.314892901 +0200
+++ openexr-2.1.0/IlmImf/ImfRleCompressor.cpp	2021-06-16 14:19:33.101848111 +0200
@@ -153,6 +153,11 @@ rleUncompress (int inLength, int maxLeng
 	    if (0 > (maxLength -= count + 1))
 		return 0;
 
+            // check the input buffer is big enough to contain
+            // byte to be duplicated
+            if (inLength < 0)
+              return 0;
+
 	    while (count-- >= 0)
 		*out++ = *(char *) in;