summaryrefslogtreecommitdiffstats
path: root/security/smack/smack_lsm.c
diff options
context:
space:
mode:
Diffstat (limited to 'security/smack/smack_lsm.c')
-rw-r--r--security/smack/smack_lsm.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index fbadc61fe..feba69549 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1309,7 +1309,8 @@ static int smack_inode_setxattr(struct user_namespace *mnt_userns,
check_star = 1;
} else if (strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0) {
check_priv = 1;
- if (size != TRANS_TRUE_SIZE ||
+ if (!S_ISDIR(d_backing_inode(dentry)->i_mode) ||
+ size != TRANS_TRUE_SIZE ||
strncmp(value, TRANS_TRUE, TRANS_TRUE_SIZE) != 0)
rc = -EINVAL;
} else
@@ -2782,6 +2783,15 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name,
if (value == NULL || size > SMK_LONGLABEL || size == 0)
return -EINVAL;
+ if (strcmp(name, XATTR_SMACK_TRANSMUTE) == 0) {
+ if (!S_ISDIR(inode->i_mode) || size != TRANS_TRUE_SIZE ||
+ strncmp(value, TRANS_TRUE, TRANS_TRUE_SIZE) != 0)
+ return -EINVAL;
+
+ nsp->smk_flags |= SMK_INODE_TRANSMUTE;
+ return 0;
+ }
+
skp = smk_import_entry(value, size);
if (IS_ERR(skp))
return PTR_ERR(skp);