Hi, Alexey!
On Jul 24, Alexey Botchkov wrote:
> Hi, SerG.
>
> The code in sql/sql_plugin.cc function read_maria_plugin_info()
>
> sym= dlsym(plugin_dl->handle, maria_plugin_declarations_sym);
> ...
> if (plugin_dl->mariaversion != MARIA_PLUGIN_INTERFACE_VERSION)
> {
> ...
> if ((sym= dlsym(plugin_dl->handle, maria_sizeof_st_plugin_sym)))
> sizeof_st_plugin= *(int *)sym;
> ...
> if (sizeof_st_plugin != sizeof(st_mysql_plugin))
> {
> ...
> sym= cur;
> }
> }
> plugin_dl->plugins= (struct st_maria_plugin *)sym;
>
>
> So that when we enter the first 'if' but not the second
> (sizeof_st_plugin == sizeof(st_mysql_plugin)
> the sym still points at the maria_sizeof_st_plugin_sym which makes a bad
> st_maria_plugin pointer.
>
> I think it's a bug, isn't it?
Agree, it's a bug.
Regards,
Sergei
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