diff options
| -rw-r--r-- | net/bridge/br_sysfs_br.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c index e157b0dbcd8..82385fd2f18 100644 --- a/net/bridge/br_sysfs_br.c +++ b/net/bridge/br_sysfs_br.c @@ -298,23 +298,18 @@ static ssize_t store_group_addr(struct device *d, const char *buf, size_t len) { struct net_bridge *br = to_bridge(d); - unsigned int new_addr[6]; + u8 new_addr[6]; int i; if (!capable(CAP_NET_ADMIN)) return -EPERM; - if (sscanf(buf, "%x:%x:%x:%x:%x:%x", + if (sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &new_addr[0], &new_addr[1], &new_addr[2], &new_addr[3], &new_addr[4], &new_addr[5]) != 6) return -EINVAL; - /* Must be 01:80:c2:00:00:0X */ - for (i = 0; i < 5; i++) - if (new_addr[i] != br_reserved_address[i]) - return -EINVAL; - - if (new_addr[5] & ~0xf) + if (!is_link_local(new_addr)) return -EINVAL; if (new_addr[5] == 1 || /* 802.3x Pause address */ |