Re: [PATCH v4 13/36] lib: prevent module unloading if memory is not freed

Vlastimil Babka
2024-02-26T16:58:46Z

On 2/21/24 20:40, Suren Baghdasaryan wrote:
> Skip freeing module's data section if there are non-zero allocation tags
> because otherwise, once these allocations are freed, the access to their
> code tag would cause UAF.
>
> Signed-off-by: Suren Baghdasaryan <surenb@google.com>

I know that module unloading was never considered really supported etc.
But should we printk something so the admin knows why it didn't unload, and
can go check those outstanding allocations?