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SubjectRe: Linux 3.18.65
diff --git a/Makefile b/Makefile
index 02a30af3aad0..3979e65d516e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 18
-SUBLEVEL = 64
+SUBLEVEL = 65
EXTRAVERSION =
NAME = Diseased Newt

diff --git a/net/core/dev.c b/net/core/dev.c
index 99b703e45c59..22ad4e433b3a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2436,7 +2436,7 @@ static inline bool skb_needs_check(struct sk_buff *skb, bool tx_path)
{
if (tx_path)
return skb->ip_summed != CHECKSUM_PARTIAL &&
- skb->ip_summed != CHECKSUM_NONE;
+ skb->ip_summed != CHECKSUM_UNNECESSARY;

return skb->ip_summed == CHECKSUM_NONE;
}
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index ba7f71169132..5ed8740017d0 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -888,10 +888,12 @@ static int __ip_append_data(struct sock *sk,
csummode = CHECKSUM_PARTIAL;

cork->length += length;
- if ((((length + fragheaderlen) > mtu) || (skb && skb_is_gso(skb))) &&
+ if ((skb && skb_is_gso(skb)) ||
+ (((length + fragheaderlen) > mtu) &&
+ (skb_queue_len(queue) <= 1) &&
(sk->sk_protocol == IPPROTO_UDP) &&
(rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len &&
- (sk->sk_type == SOCK_DGRAM)) {
+ (sk->sk_type == SOCK_DGRAM))) {
err = ip_ufo_append_data(sk, queue, getfrag, from, length,
hh_len, fragheaderlen, transhdrlen,
maxfraglen, flags);
@@ -1207,6 +1209,7 @@ ssize_t ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,

cork->length += size;
if ((size + skb->len > mtu) &&
+ (skb_queue_len(&sk->sk_write_queue) == 1) &&
(sk->sk_protocol == IPPROTO_UDP) &&
(rt->dst.dev->features & NETIF_F_UFO)) {
skb_shinfo(skb)->gso_size = mtu - fragheaderlen;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c0e026ae388e..c16688d39ca4 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2535,8 +2535,8 @@ static inline void tcp_end_cwnd_reduction(struct sock *sk)
struct tcp_sock *tp = tcp_sk(sk);

/* Reset cwnd to ssthresh in CWR or Recovery (unless it's undone) */
- if (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR ||
- (tp->undo_marker && tp->snd_ssthresh < TCP_INFINITE_SSTHRESH)) {
+ if (tp->snd_ssthresh < TCP_INFINITE_SSTHRESH &&
+ (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR || tp->undo_marker)) {
tp->snd_cwnd = tp->snd_ssthresh;
tp->snd_cwnd_stamp = tcp_time_stamp;
}
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 5853c5a2264e..2adfa23285be 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -3122,6 +3122,9 @@ int tcp_connect(struct sock *sk)
struct sk_buff *buff;
int err;

+ if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
+ return -EHOSTUNREACH; /* Routing failure or similar. */
+
tcp_connect_init(sk);

if (unlikely(tp->repair)) {
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index baec68553e90..f146c10ca11d 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -596,7 +596,8 @@ static void tcp_keepalive_timer (unsigned long data)
goto death;
}

- if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE)
+ if (!sock_flag(sk, SOCK_KEEPOPEN) ||
+ ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)))
goto out;

elapsed = keepalive_time_when(tp);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index ee26711a952a..085fd0d357e2 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -804,7 +804,7 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4)
if (is_udplite) /* UDP-Lite */
csum = udplite_csum(skb);

- else if (sk->sk_no_check_tx) { /* UDP csum disabled */
+ else if (sk->sk_no_check_tx && !skb_is_gso(skb)) { /* UDP csum off */

skb->ip_summed = CHECKSUM_NONE;
goto send;
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index e6d05ae1f22e..7a98b8d968c9 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -198,7 +198,7 @@ static struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
if (uh->check == 0)
uh->check = CSUM_MANGLED_0;

- skb->ip_summed = CHECKSUM_NONE;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;

/* Fragment the skb. IP headers of the fragments are updated in
* inet_gso_segment()
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 650e7c53c3c8..f71de459139f 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1305,11 +1305,12 @@ emsgsize:

skb = skb_peek_tail(&sk->sk_write_queue);
cork->length += length;
- if ((((length + fragheaderlen) > mtu) ||
- (skb && skb_is_gso(skb))) &&
+ if ((skb && skb_is_gso(skb)) ||
+ (((length + fragheaderlen) > mtu) &&
+ (skb_queue_len(&sk->sk_write_queue) <= 1) &&
(sk->sk_protocol == IPPROTO_UDP) &&
(rt->dst.dev->features & NETIF_F_UFO) &&
- (sk->sk_type == SOCK_DGRAM)) {
+ (sk->sk_type == SOCK_DGRAM))) {
err = ip6_ufo_append_data(sk, getfrag, from, length,
hh_len, fragheaderlen,
transhdrlen, mtu, flags, rt);
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 050d556a7997..3e2a55307b3d 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -82,7 +82,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
if (uh->check == 0)
uh->check = CSUM_MANGLED_0;

- skb->ip_summed = CHECKSUM_NONE;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;

/* Check if there is enough headroom to insert fragment header. */
tnl_hlen = skb_tnl_header_len(skb);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index eafac12b39a1..1c03d83edd7e 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -3310,14 +3310,19 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv

if (optlen != sizeof(val))
return -EINVAL;
- if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
- return -EBUSY;
if (copy_from_user(&val, optval, sizeof(val)))
return -EFAULT;
if (val > INT_MAX)
return -EINVAL;
- po->tp_reserve = val;
- return 0;
+ lock_sock(sk);
+ if (po->rx_ring.pg_vec || po->tx_ring.pg_vec) {
+ ret = -EBUSY;
+ } else {
+ po->tp_reserve = val;
+ ret = 0;
+ }
+ release_sock(sk);
+ return ret;
}
case PACKET_LOSS:
{
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 8a64a0734aee..1faa24b3203e 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -42,8 +42,8 @@ static int ipt_init_target(struct xt_entry_target *t, char *table, unsigned int
return PTR_ERR(target);

t->u.kernel.target = target;
+ memset(&par, 0, sizeof(par));
par.table = table;
- par.entryinfo = NULL;
par.target = target;
par.targinfo = t->data;
par.hook_mask = hook;
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