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[NTDLL] check for NULL buffer in LdrpLoadDll

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This happens in advapi32_apitest in Test_CreateOpenKey.
This commit is contained in:
Timo Kreuzer 2025-02-01 15:22:13 +02:00
parent 486ab63862
commit 90dce9340c
1 changed files with 6 additions and 0 deletions
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6
dll/ntdll/ldr/ldrutils.c
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@ -2423,6 +2423,12 @@ LdrpLoadDll(IN BOOLEAN Redirected,
PLDR_DATA_TABLE_ENTRY LdrEntry; PLDR_DATA_TABLE_ENTRY LdrEntry;
BOOLEAN InInit = LdrpInLdrInit; BOOLEAN InInit = LdrpInLdrInit;
if (DllName->Buffer == NULL)
{
DPRINT1("DllName->Buffer is NULL!\n");
return STATUS_INVALID_PARAMETER;
}
/* Save the Raw DLL Name */ /* Save the Raw DLL Name */
if (DllName->Length >= sizeof(NameBuffer)) return STATUS_NAME_TOO_LONG; if (DllName->Length >= sizeof(NameBuffer)) return STATUS_NAME_TOO_LONG;
RtlInitEmptyUnicodeString(&RawDllName, NameBuffer, sizeof(NameBuffer)); RtlInitEmptyUnicodeString(&RawDllName, NameBuffer, sizeof(NameBuffer));