asus-wmi: Restrict debugfs interface when securelevel is set
authorMatthew Garrett <mjg59@srcf.ucam.org>
Fri, 9 Mar 2012 13:46:50 +0000 (08:46 -0500)
committerBen Hutchings <ben@decadent.org.uk>
Wed, 4 Jan 2017 19:39:36 +0000 (19:39 +0000)
commitdc8e33321e3cabc7b5ef6be62cc9ba3e3953f654
treece600eaef09c6558427ae331b1bf6d3d152a9448
parentcae02044082c05a30e100e4a14d5a7526bdb2269
asus-wmi: Restrict debugfs interface when securelevel is set

We have no way of validating what all of the Asus WMI methods do on a
given machine, and there's a risk that some will allow hardware state to
be manipulated in such a way that arbitrary code can be executed in the
kernel. Prevent that if securelevel is set.

Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Gbp-Pq: Topic features/all/securelevel
Gbp-Pq: Name asus-wmi-restrict-debugfs-interface-when-securelevel.patch
drivers/platform/x86/asus-wmi.c