diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/igmp.c | 9 | ||||
| -rw-r--r-- | net/ipv4/ping.c | 12 | ||||
| -rw-r--r-- | net/ipv4/route.c | 1 | ||||
| -rw-r--r-- | net/ipv4/syncookies.c | 1 | ||||
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 2 |
5 files changed, 20 insertions, 5 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index b1ecc9195517..cac2fdd08df0 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -2403,9 +2403,10 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct newpsl->sl_addr[i] = psl->sl_addr[i]; /* decrease mem now to avoid the memleak warning */ atomic_sub(IP_SFLSIZE(psl->sl_max), &sk->sk_omem_alloc); - kfree_rcu(psl, rcu); } rcu_assign_pointer(pmc->sflist, newpsl); + if (psl) + kfree_rcu(psl, rcu); psl = newpsl; } rv = 1; /* > 0 for insert logic below if sl_count is 0 */ @@ -2503,11 +2504,13 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex) psl->sl_count, psl->sl_addr, 0); /* decrease mem now to avoid the memleak warning */ atomic_sub(IP_SFLSIZE(psl->sl_max), &sk->sk_omem_alloc); - kfree_rcu(psl, rcu); - } else + } else { (void) ip_mc_del_src(in_dev, &msf->imsf_multiaddr, pmc->sfmode, 0, NULL, 0); + } rcu_assign_pointer(pmc->sflist, newpsl); + if (psl) + kfree_rcu(psl, rcu); pmc->sfmode = msf->imsf_fmode; err = 0; done: diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 33e6392e8b82..3ff65c9ab8ee 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -304,6 +304,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk, struct net *net = sock_net(sk); if (sk->sk_family == AF_INET) { struct sockaddr_in *addr = (struct sockaddr_in *) uaddr; + u32 tb_id = RT_TABLE_LOCAL; int chk_addr_ret; if (addr_len < sizeof(*addr)) @@ -317,7 +318,8 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk, pr_debug("ping_check_bind_addr(sk=%p,addr=%pI4,port=%d)\n", sk, &addr->sin_addr.s_addr, ntohs(addr->sin_port)); - chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr); + tb_id = l3mdev_fib_table_by_index(net, sk->sk_bound_dev_if) ? : tb_id; + chk_addr_ret = inet_addr_type_table(net, addr->sin_addr.s_addr, tb_id); if (addr->sin_addr.s_addr == htonl(INADDR_ANY)) chk_addr_ret = RTN_LOCAL; @@ -358,6 +360,14 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk, return -ENODEV; } } + + if (!dev && sk->sk_bound_dev_if) { + dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if); + if (!dev) { + rcu_read_unlock(); + return -ENODEV; + } + } has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev, scoped); rcu_read_unlock(); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index d1feec97fa06..9280e5087159 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1775,6 +1775,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr, #endif RT_CACHE_STAT_INC(in_slow_mc); + skb_dst_drop(skb); skb_dst_set(skb, &rth->dst); return 0; } diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index 2b45d1455592..6811174ad518 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -332,6 +332,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb) ireq = inet_rsk(req); treq = tcp_rsk(req); + treq->af_specific = &tcp_request_sock_ipv4_ops; treq->rcv_isn = ntohl(th->seq) - 1; treq->snt_isn = cookie; treq->ts_off = 0; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 426d70d45eda..72fe93ace7d7 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1383,7 +1383,7 @@ struct request_sock_ops tcp_request_sock_ops __read_mostly = { .syn_ack_timeout = tcp_syn_ack_timeout, }; -static const struct tcp_request_sock_ops tcp_request_sock_ipv4_ops = { +const struct tcp_request_sock_ops tcp_request_sock_ipv4_ops = { .mss_clamp = TCP_MSS_DEFAULT, #ifdef CONFIG_TCP_MD5SIG .req_md5_lookup = tcp_v4_md5_lookup, |