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Check for a valid module before attempting to read the export 

directory in LdrGetProcedureAddress.
This commit is contained in:
Alexandre Julliard 2005-11-29 17:10:30 +01:00
parent 220edd52d4
commit 4cbf118d88
1 changed files with 4 additions and 7 deletions
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11
dlls/ntdll/loader.c
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@ -1181,8 +1181,10 @@ NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
RtlEnterCriticalSection( &loader_section );
if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
/* check if the module itself is invalid to return the proper error */
if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
else if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
{
void *proc = name ? find_named_export( module, exports, exp_size, name->Buffer, -1 )
: find_ordinal_export( module, exports, exp_size, ord - exports->Base );
@ -1192,11 +1194,6 @@ NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
ret = STATUS_SUCCESS;
}
}
else
{
/* check if the module itself is invalid to return the proper error */
if (!get_modref( module )) ret = STATUS_DLL_NOT_FOUND;
}
RtlLeaveCriticalSection( &loader_section );
return ret;