smack: do not beyond ARRAY_SIZE of data

Do not go beyond ARRAY_SIZE of data

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 904af34..8d3c2a0 100644 (file)
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -776,7 +776,7 @@ static ssize_t smk_write_netlbladdr(struct file *file, const char __user *buf,
        struct sockaddr_in newname;
        char smack[SMK_LABELLEN];
        char *sp;
-       char data[SMK_NETLBLADDRMAX];
+       char data[SMK_NETLBLADDRMAX + 1];
        char *host = (char *)&newname.sin_addr.s_addr;
        int rc;
        struct netlbl_audit audit_info;