Smack: Handle CGROUP2 in the same way that CGROUP

The new file system CGROUP2 isn't actually handled
by smack. This changes makes Smack treat equally
CGROUP and CGROUP2 items.

Signed-off-by: José Bollo <jose.bollo@iot.bzh>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 03fdecba93bb..5d77ed04422c 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3431,6 +3431,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
         if (opt_dentry->d_parent == opt_dentry) {
                 switch (sbp->s_magic) {
                 case CGROUP_SUPER_MAGIC:
+                case CGROUP2_SUPER_MAGIC:
                         /*
                          * The cgroup filesystem is never mounted,
                          * so there's no opportunity to set the mount
@@ -3474,6 +3475,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
         switch (sbp->s_magic) {
         case SMACK_MAGIC:
         case CGROUP_SUPER_MAGIC:
+        case CGROUP2_SUPER_MAGIC:
                 /*
                  * Casey says that it's a little embarrassing
                  * that the smack file system doesn't do