diff options
| -rw-r--r-- | security/smack/smack_lsm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 87d75417ea93..b80292354d04 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -604,6 +604,8 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name, strcmp(name, XATTR_NAME_SMACKIPOUT) == 0) { if (!capable(CAP_MAC_ADMIN)) rc = -EPERM; + if (size == 0) + rc = -EINVAL; } else rc = cap_inode_setxattr(dentry, name, value, size, flags); @@ -1360,7 +1362,7 @@ static int smack_inode_setsecurity(struct inode *inode, const char *name, struct socket *sock; int rc = 0; - if (value == NULL || size > SMK_LABELLEN) + if (value == NULL || size > SMK_LABELLEN || size == 0) return -EACCES; sp = smk_import(value, size); |