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[NTOS:PNP] Reduce the size of the pool buffer in IopGetParentIdPrefix. CORE-15882

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Thomas Faber
2019-04-18 07:41:50 +02:00
parent 2f1fab41fa
commit 5706f6e9f4
1 changed files with 1 additions and 1 deletions
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2
ntoskrnl/io/pnpmgr/pnpmgr.c
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@@ -1853,7 +1853,7 @@ IopGetParentIdPrefix(PDEVICE_NODE DeviceNode,
}
/* 1. Try to retrieve ParentIdPrefix from registry */
KeyNameBufferLength = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data[0]) + MAX_PATH * sizeof(WCHAR);
KeyNameBufferLength = FIELD_OFFSET(KEY_VALUE_PARTIAL_INFORMATION, Data) + sizeof(L"12345678&12345678");
ParentIdPrefixInformation = ExAllocatePoolWithTag(PagedPool,
KeyNameBufferLength + sizeof(UNICODE_NULL),
TAG_IO);