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Diffstat (limited to 'net/rds/bind.c')
-rw-r--r--net/rds/bind.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/rds/bind.c b/net/rds/bind.c
index 762d2c6788a3..0f4398e7f2a7 100644
--- a/net/rds/bind.c
+++ b/net/rds/bind.c
@@ -78,10 +78,10 @@ struct rds_sock *rds_find_bound(const struct in6_addr *addr, __be16 port,
__rds_create_bind_key(key, addr, port, scope_id);
rcu_read_lock();
rs = rhashtable_lookup(&bind_hash_table, key, ht_parms);
- if (rs && !sock_flag(rds_rs_to_sk(rs), SOCK_DEAD))
- rds_sock_addref(rs);
- else
+ if (rs && (sock_flag(rds_rs_to_sk(rs), SOCK_DEAD) ||
+ !refcount_inc_not_zero(&rds_rs_to_sk(rs)->sk_refcnt)))
rs = NULL;
+
rcu_read_unlock();
rdsdebug("returning rs %p for %pI6c:%u\n", rs, addr,
@@ -173,6 +173,8 @@ int rds_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
/* We allow an RDS socket to be bound to either IPv4 or IPv6
* address.
*/
+ if (addr_len < offsetofend(struct sockaddr, sa_family))
+ return -EINVAL;
if (uaddr->sa_family == AF_INET) {
struct sockaddr_in *sin = (struct sockaddr_in *)uaddr;