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[WS2_32]: Fix the crash in ws2_32 reported in CORE-12852, that happens when opening e.g. Word 2010 for the first time (when it asks for registration):

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- Check whether WsNcLoadProvider really succeeded in loading a provider in WsNcGetCatalogFromProviderId, and return appropriate error code.
- In WsNqLookupServiceBegin, initialize CatalogEntry to NULL prior to calling WsNcGetCatalogFromProviderId, and check for success or failure of WsNqAddProvider (and fail in accordance).

svn path=/trunk/; revision=74067
This commit is contained in:
Hermès Bélusca-Maïto 2017-03-05 00:24:08 +00:00
parent 0989caed38
commit abc2d4d228
2 changed files with 20 additions and 17 deletions
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26
reactos/dll/win32/ws2_32/src/nscatalo.c
View file

@ -497,6 +497,7 @@ WsNcGetCatalogFromProviderId(IN PNSCATALOG Catalog,
IN LPGUID ProviderId,
OUT PNSCATALOG_ENTRY *CatalogEntry)
{
INT ErrorCode = WSAEINVAL;
PLIST_ENTRY NextEntry;
PNSCATALOG_ENTRY Entry;
@ -514,25 +515,24 @@ WsNcGetCatalogFromProviderId(IN PNSCATALOG Catalog,
/* Check if this is the Catalog Entry ID we want */
if (IsEqualGUID(&Entry->ProviderId, ProviderId))
{
/* Check if it doesn't already have a provider */
/* If it doesn't already have a provider, load the provider */
if (!Entry->Provider)
{
/* Match, load the Provider */
WsNcLoadProvider(Catalog, Entry);
}
ErrorCode = WsNcLoadProvider(Catalog, Entry);
/* Reference the entry and return it */
InterlockedIncrement(&Entry->RefCount);
*CatalogEntry = Entry;
break;
/* If we succeeded, reference the entry and return it */
if (Entry->Provider /* || ErrorCode == ERROR_SUCCESS */)
{
InterlockedIncrement(&Entry->RefCount);
*CatalogEntry = Entry;
ErrorCode = ERROR_SUCCESS;
break;
}
}
}
/* Release the catalog */
/* Release the lock and return */
WsNcUnlock();
/* Return */
return ERROR_SUCCESS;
return ErrorCode;
}
BOOL

11
reactos/dll/win32/ws2_32/src/nsquery.c
View file

@ -355,7 +355,7 @@ WsNqLookupServiceBegin(IN PNSQUERY NsQuery,
PLIST_ENTRY Entry;
INT ErrorCode;
DWORD ClassInfoSize;
PNSCATALOG_ENTRY CatalogEntry;
PNSCATALOG_ENTRY CatalogEntry = NULL;
ENUM_CONTEXT EnumContext;
BOOLEAN TryAgain;
@ -396,10 +396,13 @@ WsNqLookupServiceBegin(IN PNSQUERY NsQuery,
ErrorCode = SOCKET_ERROR;
goto Exit;
}
else
/* We succeeded, add this provider */
else if (!WsNqAddProvider(NsQuery, CatalogEntry->Provider))
{
/* Add this provider */
WsNqAddProvider(NsQuery, CatalogEntry->Provider);
/* Fail */
SetLastError(WSA_NOT_ENOUGH_MEMORY);
ErrorCode = SOCKET_ERROR;
goto Exit;
}
}
else