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ntdll: Use correct output buffer size in RtlpNtEnumerateSubKey. 

Signed-off-by: Torge Matthies <tmatthies@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Torge Matthies 2022-05-01 02:48:23 +02:00 committed by Alexandre Julliard
parent fd5c680abe
commit cf7cb993b8
1 changed files with 3 additions and 3 deletions
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6
dlls/ntdll/reg.c
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@ -91,9 +91,9 @@ NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG
DWORD dwLen, dwResultLen; DWORD dwLen, dwResultLen;
NTSTATUS ret; NTSTATUS ret;
if (out->Length) if (out->MaximumLength)
{ {
dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION); dwLen = out->MaximumLength + sizeof(KEY_BASIC_INFORMATION);
info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen ); info = RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
if (!info) if (!info)
return STATUS_NO_MEMORY; return STATUS_NO_MEMORY;
@ -111,7 +111,7 @@ NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG
out->Length = dwResultLen; out->Length = dwResultLen;
else if (!ret) else if (!ret)
{ {
if (out->Length < info->NameLength) if (out->MaximumLength < info->NameLength)
{ {
out->Length = dwResultLen; out->Length = dwResultLen;
ret = STATUS_BUFFER_OVERFLOW; ret = STATUS_BUFFER_OVERFLOW;