diff options
| -rw-r--r-- | net/netlink/genetlink.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 874f8ff..409dd40 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -700,6 +700,10 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb) struct net *net = sock_net(skb->sk); int chains_to_skip = cb->args[0]; int fams_to_skip = cb->args[1]; + bool need_locking = chains_to_skip || fams_to_skip; + + if (need_locking) + genl_lock(); for (i = chains_to_skip; i < GENL_FAM_TAB_SIZE; i++) { n = 0; @@ -721,6 +725,9 @@ errout: cb->args[0] = i; cb->args[1] = n; + if (need_locking) + genl_unlock(); + return skb->len; } |