[ros-bugs] [Bug 1102] New: No return value checking could cause segfault

[ReactOS.Bugzilla at reactos.org]

http://www.reactos.org/bugzilla/show_bug.cgi?id=1102

           Summary: No return value checking could cause segfault
           Product: ReactOS
           Version: TRUNK
          Platform: x86 Hardware
        OS/Version: ReactOS
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Win32
        AssignedTo: ros-bugs at reactos.org
        ReportedBy: mbealby at gmail.com
         QAContact: ros-bugs at reactos.org


File: reactos/lib/kernel32/misc/dllmail.c
Func: DllMain
Line: 348 (svn revision 19963)

The return value from RtlAllocateHeap is not checked. If it fails null is
returned and the wcscpy function will seg-fault.

--- Broken code start ---
SystemDirectory.Buffer = RtlAllocateHeap(hProcessHeap, 0,
SystemDirectory.MaximumLength);
wcscpy(SystemDirectory.Buffer, WindowsDirectory.Buffer);
wcscat(SystemDirectory.Buffer, L"\\System32");
--- Broken code end ---

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