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Posted to c-dev@xerces.apache.org by "Bill Blough (JIRA)" <xe...@xml.apache.org> on 2015/05/02 06:15:08 UTC
[jira] [Created] (XERCESC-2049) memcpy used on overlapping memory
regions causes sanity test failure
Bill Blough created XERCESC-2049:
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Summary: memcpy used on overlapping memory regions causes sanity test failure
Key: XERCESC-2049
URL: https://issues.apache.org/jira/browse/XERCESC-2049
Project: Xerces-C++
Issue Type: Bug
Components: Utilities
Affects Versions: 3.1.2
Environment: Debian unstable (sid) and Debian stable (jessie) on amd64
Reporter: Bill Blough
On Debian Jessie (libc6 2.19, libstdc++ 4.9.2) and newer, sanityTest.pl fails its tests of XMLString::collapseWS.
Tracing with GDB shows that XMLString::moveChars is corrupting the string. I think this is likely due to memcpy being used on overlapping memory regions.
Replacing the memcpy in moveChars with memmove fixes the issue on my systems.
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