Re: ntoskrnl.exe: Implement MmIsAddressValid (bug 11082)

[Dmitry Timoshkov]

"Detlef Riekenberg"  wrote:
> - len = VirtualQuery(VirtualAddress, &info, sizeof(MEMORY_BASIC_INFORMATION));
> -
> - if ((len == sizeof(MEMORY_BASIC_INFORMATION)) &&
> -
>    (info.Protect & (PAGE_READWRITE || PAGE_EXECUTE_READWRITE)) &&
> -
>    ((info.Protect & PAGE_NOACCESS) == 0) &&
> -
>    (info.Type & MEM_COMMIT))
> - {
> -
>    return TRUE;
> - }

Besides the already pointed out '||' vs. '|' mismatch your code doesn't
handle PAGE_READONLY and others implying read-only access. Probably checking
for PAGE_NOACCESS and MEM_COMMIT should be enough.