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-rw-r--r--security/smack/smack_lsm.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 72b371812a00..6e5f74813c10 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -2856,6 +2856,15 @@ 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);