Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH 18/27] bpf: Restrict kernel image access functions when the kernel is locked down | Date | Mon, 23 Oct 2017 15:53:00 +0100 |
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jlee@suse.com wrote:
> hm... patch 4 only prevents write_mem() but not read_mem(). > Or I missed anything?
Actually, yes, as it happens, patch 11 prevents you from even opening /dev/mem and /dev/kmem by locking down open of /dev/port. So I've moved this bit to patch 4, simplified and posted a new variant for patch 4.
David
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