[PATCH 10/27] PCI: Lock down BAR access when the kernel is locked down

From: Matthew Garrett Any hardware that can potentially generate DMA has to be locked down in order to avoid it being possible for an attacker to modify kernel code, allowing them to circumvent disabled module loading or module signing. Default to paranoid - in future we can potentially relax thi

Re: [PATCH 10/27] PCI: Lock down BAR access when the kernel is locked down

On Thu, Oct 19, 2017 at 03:51:49PM +0100, David Howells wrote: > From: Matthew Garrett > > Any hardware that can potentially generate DMA has to be locked down in > order to avoid it being possible for an attacker to modify kernel code, > allowing them to circumvent disabled module loading or mod

[PATCH 10/27] PCI: Lock down BAR access when the kernel is locked down

From: Matthew Garrett Any hardware that can potentially generate DMA has to be locked down in order to avoid it being possible for an attacker to modify kernel code, allowing them to circumvent disabled module loading or module signing. Default to paranoid - in future we can potentially relax thi