Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-02-25 01:39:30 +00:00
Code Issues Projects Releases Packages Wiki Activity

- Add more check of parametres in GetDIBits

Browse source 
svn path=/trunk/; revision=39882
This commit is contained in:
Dmitry Chapyshev 2009-03-05 12:22:35 +00:00
parent 31c097e8b6
commit 0302c8f272
1 changed files with 12 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
reactos/dll/win32/gdi32/objects/bitmap.c
View file

@ -418,7 +418,13 @@ GetDIBits(
}
}
}
pvSafeBits = RtlAllocateHeap(GetProcessHeap(), 0, cjBmpScanSize);
if ((ULONG)lpvBits & (sizeof(DWORD) - 1))
{
pvSafeBits = RtlAllocateHeap(RtlGetProcessHeap(), 0, cjBmpScanSize);
if (!pvSafeBits)
return Ret;
}
}
Ret = NtGdiGetDIBitsInternal(hDC,
@ -430,9 +436,12 @@ GetDIBits(
uUsage,
cjBmpScanSize,
0);
if ( lpvBits != pvSafeBits)
if (lpvBits != pvSafeBits)
{
RtlCopyMemory( lpvBits, pvSafeBits, cjBmpScanSize);
if (Ret)
{
RtlCopyMemory(lpvBits, pvSafeBits, cjBmpScanSize);
}
RtlFreeHeap(RtlGetProcessHeap(), 0, pvSafeBits);
}
return Ret;