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>
Sun, 4 Jun 2017 02:03:01 +0000 (02:03 +0000)
commit20fb6500edec325a4c2f56659399dd773b4460ca
tree00f00452049688c2f5c4937899126ac5db3b53b5
parentd9aa0a99613d18f1157550d457fde87158d96373
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