econet: fix CVE-2010-3850

[pandora-kernel.git] / net / econet / af_econet.c

diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index e366f1b..d41ba8e 100644 (file)
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -661,6 +661,9 @@ static int ec_dev_ioctl(struct socket *sock, unsigned int cmd, void __user *arg)
        err = 0;
        switch (cmd) {
        case SIOCSIFADDR:
+               if (!capable(CAP_NET_ADMIN))
+                       return -EPERM;
+
                edev = dev->ec_ptr;
                if (edev == NULL) {
                        /* Magic up a new one. */