Messages in this thread | | | Date | Thu, 15 Apr 2010 12:43:09 +0200 (CEST) | From | Jiri Kosina <> | Subject | Re: [PATCH] Kconfig: Make config Filter access to /dev/mem default y |
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On Thu, 15 Apr 2010, Michal Svoboda wrote:
> > Have you ever successfully attack by this way? If CONFIG_STRICT_DEVMEM > > is not set, the /dev/mem access is filtered in pat code. > > If that option doesn't add any protection, what's it good for?
Access to /dev/mem being filtered in PAT obviously applies only to x86.
Architectures which don't do such filtering in their respective phys_mem_access_prot_allowed() still need this option.
-- Jiri Kosina SUSE Labs, Novell Inc.
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