From: Jeff Vander Stoep <jeffv@google.com>
Date: Tue, 20 Jun 2017 16:35:33 +0000 (-0700)
Subject: selinux: enable genfscon labeling for tracefs
X-Git-Tag: v4.13-rc1~161^2~2^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6a3911837da0a90ed599fd0a9836472f5e7ddf1b;p=thirdparty%2Flinux.git

selinux: enable genfscon labeling for tracefs

In kernel version 4.1, tracefs was separated from debugfs into its
own filesystem. Prior to this split, files in
/sys/kernel/debug/tracing could be labeled during filesystem
creation using genfscon or later from userspace using setxattr. This
change re-enables support for genfscon labeling.

Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
---

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 9cc042df10d16..3a06afbd2f6fe 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -813,6 +813,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 		sbsec->flags |= SE_SBPROC | SE_SBGENFS;
 
 	if (!strcmp(sb->s_type->name, "debugfs") ||
+	    !strcmp(sb->s_type->name, "tracefs") ||
 	    !strcmp(sb->s_type->name, "sysfs") ||
 	    !strcmp(sb->s_type->name, "pstore"))
 		sbsec->flags |= SE_SBGENFS;