From: Eric Paris <eparis@redhat.com>
Date: Wed, 5 Nov 2008 14:34:42 +0000 (-0500)
Subject: SELinux: Use unknown perm handling to handle unknown netlink msg types
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=39c9aede2b4a252bd296c0a86be832c3d3d0a273;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

SELinux: Use unknown perm handling to handle unknown netlink msg types

Currently when SELinux has not been updated to handle a netlink message
type the operation is denied with EINVAL.  This patch will leave the
audit/warning message so things get fixed but if policy chose to allow
unknowns this will allow the netlink operation.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
---

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index f71de5a64d0c..7fd4de46b2a9 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4395,7 +4395,7 @@ static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
 				  "SELinux:  unrecognized netlink message"
 				  " type=%hu for sclass=%hu\n",
 				  nlh->nlmsg_type, isec->sclass);
-			if (!selinux_enforcing)
+			if (!selinux_enforcing || security_get_allow_unknown())
 				err = 0;
 		}