1 files changed, 3 insertions, 0 deletions

diff --git a/net/netlink/diag.c b/net/netlink/diag.c
index 7301850eb56f..de8c74a3c061 100644
--- a/net/netlink/diag.c
+++ b/net/netlink/diag.c
@@ -170,6 +170,7 @@ static int netlink_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
 
         req = nlmsg_data(cb->nlh);
 
+        mutex_lock(&nl_sk_hash_lock);
         read_lock(&nl_table_lock);
 
         if (req->sdiag_protocol == NDIAG_PROTO_ALL) {
@@ -183,6 +184,7 @@ static int netlink_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
         } else {
                 if (req->sdiag_protocol >= MAX_LINKS) {
                         read_unlock(&nl_table_lock);
+                        mutex_unlock(&nl_sk_hash_lock);
                         return -ENOENT;
                 }
 
@@ -190,6 +192,7 @@ static int netlink_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
         }
 
         read_unlock(&nl_table_lock);
+        mutex_unlock(&nl_sk_hash_lock);
 
         return skb->len;
 }