Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH] Lock down drivers that can have io ports, io mem, irqs and dma changed | Date | Thu, 24 Nov 2016 17:34:45 +0000 |
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Dominik Brodowski <linux@dominikbrodowski.net> wrote:
> > > - 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? > > Exactly. It is a different interface for updating the firmware -- which > includes ioports etc. In theory, any access should be limited to areas which > are registered to the bridge devices. But you never know...
Ah, I see. Should this be using request_firmware()?
David
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