From mboxrd@z Thu Jan 1 00:00:00 1970 From: tglx@linutronix.de (Thomas Gleixner) Date: Fri, 14 Apr 2017 20:30:33 +0200 (CEST) Subject: [PATCH 14/24] x86: Restrict MSR access when the kernel is locked down In-Reply-To: <149142339340.5101.1283602261267937893.stgit@warthog.procyon.org.uk> References: <149142326734.5101.4596394505987813763.stgit@warthog.procyon.org.uk> <149142339340.5101.1283602261267937893.stgit@warthog.procyon.org.uk> Message-ID: To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org On Wed, 5 Apr 2017, David Howells wrote: Can you please change the subsys in $subject to 'x86/msr:' ? > From: Matthew Garrett > > Writing to MSRs should not be allowed if the kernel is locked down, since > it could lead to execution of arbitrary code in kernel mode. Based on a > patch by Kees Cook. > > Signed-off-by: Matthew Garrett > Signed-off-by: David Howells > Acked-by: Kees Cook > cc: x86 at kernel.org Reviewed-by: Thomas Gleixner -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html