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https://issues.apache.org/jira/browse/XERCESC-2179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16966710#comment-16966710
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Scott Cantor commented on XERCESC-2179:
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If the variable type is LPDWORD, then the size of that is 64-bits but the size
of the data it's pointing to is 32-bits, not 64. I certainly would agree that
using unsigned int is a bad idea (or long for that matter), it should
absolutely use DWORD for safety. But a DWORD is 32-bit, not 64-bit, it's not
arch-dependent.
I have not reviewed the original code to compare, so I can't comment as to
right or wrong, but something seems fishy.
> access violation in win32transservice.cpp with 64 bit compile
> -------------------------------------------------------------
>
> Key: XERCESC-2179
> URL: https://issues.apache.org/jira/browse/XERCESC-2179
> Project: Xerces-C++
> Issue Type: Bug
> Components: DOM
> Affects Versions: 3.2.2
> Reporter: martin goodall
> Assignee: Alberto Massari
> Priority: Blocker
> Fix For: 3.2.3
>
> Attachments: Win32TransService.cpp
>
>
> calls to ::Reg... to get registry info are passing in stack variables that
> are 8 bytes long into functions that overwrite 16 bytes, causing memory
> overwrite and very random segs.
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