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Message #12406
Re: 2792940391a: MDEV-23327 Can't uninstall UDF if the implementation library file doesn't exist
Hi, Oleksandr!
Mostly ok, one problem below:
On Oct 10, Oleksandr Byelkin wrote:
> revision-id: 2792940391a (mariadb-10.2.31-343-g2792940391a)
> parent(s): 2107e3bb9c0
> author: Oleksandr Byelkin <sanja@xxxxxxxxxxx>
> committer: Oleksandr Byelkin <sanja@xxxxxxxxxxx>
> timestamp: 2020-07-29 21:54:24 +0200
> message:
>
> MDEV-23327 Can't uninstall UDF if the implementation library file doesn't exist
>
> Made cleanup of DROP (udf) FUNCTION procedure and also check of mysql.func (not only loaded udf).
>
> @@ -606,43 +648,54 @@ int mysql_create_function(THD *thd,udf_func *udf)
> }
>
>
> -int mysql_drop_function(THD *thd,const LEX_STRING *udf_name)
> +enum drop_udf_result mysql_drop_function(THD *thd, const LEX_STRING *udf_name)
> {
> TABLE *table;
> - TABLE_LIST tables;
> udf_func *udf;
> DBUG_ENTER("mysql_drop_function");
>
> + if (!(table= open_udf_func_table(thd)))
> + DBUG_RETURN(UDF_DEL_RESULT_ERROR);
> +
> + // Pre-check without protection
> + if (!find_udf_everywhere(thd, udf_name->str, udf_name->length, table))
you cannot check the udf_hash without a lock
> + {
> + close_mysql_tables(thd);
Regards,
Sergei
VP of MariaDB Server Engineering
and security@xxxxxxxxxxx
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