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Fix bsod when executing IntLoadKeyboardLayout. (NtOpenKey() tryes to modify readonly memory and it causes crash)

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svn path=/trunk/; revision=25308
This commit is contained in:
Saveliy Tretiakov 2007-01-05 17:12:10 +00:00
parent d77a0d5e2e
commit 3f8e525b58
1 changed files with 13 additions and 13 deletions
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26
reactos/ntoskrnl/cm/ntfunc.c
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@ -1350,29 +1350,29 @@ NtOpenKey(OUT PHANDLE KeyHandle,
}
}
if (ObjectAttributes->ObjectName->Buffer[(ObjectAttributes->ObjectName->Length / sizeof(WCHAR)) - 1] == '\\')
{
ObjectAttributes->ObjectName->Buffer[(ObjectAttributes->ObjectName->Length / sizeof(WCHAR)) - 1] = UNICODE_NULL;
ObjectAttributes->ObjectName->Length -= sizeof(WCHAR);
ObjectAttributes->ObjectName->MaximumLength -= sizeof(WCHAR);
}
/* WINE checks for the length also */
/*if (ObjectAttributes->ObjectName->Length > MAX_NAME_LENGTH)
return(STATUS_BUFFER_OVERFLOW);*/
/* Capture all the info */
/* Capture all the info */
DPRINT("Capturing Create Info\n");
Status = ObpCaptureObjectAttributes(ObjectAttributes,
PreviousMode,
FALSE,
&ObjectCreateInfo,
&ObjectName);
if (!NT_SUCCESS(Status))
{
DPRINT("ObpCaptureObjectAttributes() failed (Status %lx)\n", Status);
return Status;
}
if (!NT_SUCCESS(Status))
{
DPRINT("ObpCaptureObjectAttributes() failed (Status %lx)\n", Status);
return Status;
}
if (ObjectName.Buffer[(ObjectName.Length / sizeof(WCHAR)) - 1] == '\\')
{
ObjectName.Buffer[(ObjectName.Length / sizeof(WCHAR)) - 1] = UNICODE_NULL;
ObjectName.Length -= sizeof(WCHAR);
ObjectName.MaximumLength -= sizeof(WCHAR);
}
PostOpenKeyInfo.CompleteName = &ObjectName;
PreOpenKeyInfo.CompleteName = &ObjectName;