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Don't write outside buffer

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svn path=/trunk/; revision=12349
This commit is contained in:
Gé van Geldorp 2004-12-26 23:09:51 +00:00
parent 0afb1fb12d
commit 8bbd20efdc
1 changed files with 9 additions and 2 deletions
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9
reactos/lib/advapi32/reg/reg.c
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@ -1,4 +1,4 @@
/* $Id: reg.c,v 1.66 2004/12/25 11:18:50 navaraf Exp $ /* $Id: reg.c,v 1.67 2004/12/26 23:09:51 gvg Exp $
* *
* COPYRIGHT: See COPYING in the top level directory * COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries * PROJECT: ReactOS system libraries
@ -2505,9 +2505,16 @@ RegQueryValueExA (HKEY hKey,
Length = Length / sizeof(WCHAR); Length = Length / sizeof(WCHAR);
} }
else if (ErrorCode == ERROR_SUCCESS && ValueData.Buffer != NULL) else if (ErrorCode == ERROR_SUCCESS && ValueData.Buffer != NULL)
{
if (*lpcbData < Length)
{
ErrorCode = ERROR_MORE_DATA;
}
else
{ {
RtlMoveMemory(lpData, ValueData.Buffer, Length); RtlMoveMemory(lpData, ValueData.Buffer, Length);
} }
}
if (lpcbData != NULL) if (lpcbData != NULL)
{ {