Re: [PATCH] Lock down drivers that can have io ports, io mem, irqs and dma changed

[David Howells]

Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx> wrote:

> You might also need to disable CIS overrides and CIS firmware loading for
> PCMCIA drivers, I presume. That needs two changes:
> 
> 	- Abort in drivers/pcmcia/ds.c::pcmcia_load_firmware() or disable
> 	  the CONFIG_PCMCIA_LOAD_CIS config option permanently.

This really ought to be handled through signature checking in
request_firmware().

> 	- Abort in drivers/pcmcia/cistpl.c::pccard_store_cis() or remove
> 	  write access to the "cis" file in
> 	  drivers/pcmcia/cistpl.c::pccard_cis_attr

What is that doing?  Allowing the device to be reconfigured?

David