Author: kremenek
Date: Tue Nov 3 00:18:05 2009
New Revision: 85872
URL: http://llvm.org/viewvc/llvm-project?rev=85872&view=rev
Log:
Fix buffer overflow in PrintMacroDefinition() by inverting the check to see if
the target buffer needs to be resized. Fixes <rdar://problem/7255377>.
Modified:
cfe/trunk/lib/Frontend/PrintPreprocessedOutput.cpp
Modified: cfe/trunk/lib/Frontend/PrintPreprocessedOutput.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/PrintPreprocessedOutput.cpp?rev=85872&r1=85871&r2=85872&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/PrintPreprocessedOutput.cpp (original)
+++ cfe/trunk/lib/Frontend/PrintPreprocessedOutput.cpp Tue Nov 3 00:18:05 2009
@@ -66,7 +66,7 @@
OS << ' ';
// Make sure we have enough space in the spelling buffer.
- if (I->getLength() < SpellingBuffer.size())
+ if (I->getLength() > SpellingBuffer.size())
SpellingBuffer.resize(I->getLength());
const char *Buffer = SpellingBuffer.data();
unsigned SpellingLen = PP.getSpelling(*I, Buffer);
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