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-rw-r--r--net/can/af_can.c22
-rw-r--r--net/core/dev.c19
-rw-r--r--net/core/filter.c10
-rw-r--r--net/core/flow_dissector.c3
-rw-r--r--net/core/neighbour.c4
-rw-r--r--net/core/sysctl_net_core.c6
-rw-r--r--net/dccp/ccids/ccid2.c3
-rw-r--r--net/ipv4/arp.c7
-rw-r--r--net/ipv4/igmp.c2
-rw-r--r--net/ipv4/tcp.c3
-rw-r--r--net/ipv4/tcp_offload.c3
-rw-r--r--net/ipv4/tcp_timer.c15
-rw-r--r--net/ipv4/udp_offload.c3
-rw-r--r--net/ipv6/ip6_gre.c14
-rw-r--r--net/ipv6/ip6_output.c9
-rw-r--r--net/ipv6/ipv6_sockglue.c2
-rw-r--r--net/ipv6/tcpv6_offload.c3
-rw-r--r--net/ipv6/udp_offload.c3
-rw-r--r--net/netfilter/nfnetlink_cthelper.c10
-rw-r--r--net/netfilter/xt_osf.c7
-rw-r--r--net/sctp/offload.c3
-rw-r--r--net/sctp/socket.c30
-rw-r--r--net/socket.c9
-rw-r--r--net/tipc/node.c26
24 files changed, 149 insertions, 67 deletions
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 5488e4a6ccd0..ac1552d8b4ad 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -722,13 +722,12 @@ static int can_rcv(struct sk_buff *skb, struct net_device *dev,
if (unlikely(!net_eq(dev_net(dev), &init_net)))
goto drop;
- if (WARN_ONCE(dev->type != ARPHRD_CAN ||
- skb->len != CAN_MTU ||
- cfd->len > CAN_MAX_DLEN,
- "PF_CAN: dropped non conform CAN skbuf: "
- "dev type %d, len %d, datalen %d\n",
- dev->type, skb->len, cfd->len))
+ if (unlikely(dev->type != ARPHRD_CAN || skb->len != CAN_MTU ||
+ cfd->len > CAN_MAX_DLEN)) {
+ pr_warn_once("PF_CAN: dropped non conform CAN skbuf: dev type %d, len %d, datalen %d\n",
+ dev->type, skb->len, cfd->len);
goto drop;
+ }
can_receive(skb, dev);
return NET_RX_SUCCESS;
@@ -746,13 +745,12 @@ static int canfd_rcv(struct sk_buff *skb, struct net_device *dev,
if (unlikely(!net_eq(dev_net(dev), &init_net)))
goto drop;
- if (WARN_ONCE(dev->type != ARPHRD_CAN ||
- skb->len != CANFD_MTU ||
- cfd->len > CANFD_MAX_DLEN,
- "PF_CAN: dropped non conform CAN FD skbuf: "
- "dev type %d, len %d, datalen %d\n",
- dev->type, skb->len, cfd->len))
+ if (unlikely(dev->type != ARPHRD_CAN || skb->len != CANFD_MTU ||
+ cfd->len > CANFD_MAX_DLEN)) {
+ pr_warn_once("PF_CAN: dropped non conform CAN FD skbuf: dev type %d, len %d, datalen %d\n",
+ dev->type, skb->len, cfd->len);
goto drop;
+ }
can_receive(skb, dev);
return NET_RX_SUCCESS;
diff --git a/net/core/dev.c b/net/core/dev.c
index 09007a71c8dd..67b5d4d8acb1 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3083,10 +3083,21 @@ static void qdisc_pkt_len_init(struct sk_buff *skb)
hdr_len = skb_transport_header(skb) - skb_mac_header(skb);
/* + transport layer */
- if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)))
- hdr_len += tcp_hdrlen(skb);
- else
- hdr_len += sizeof(struct udphdr);
+ if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))) {
+ const struct tcphdr *th;
+ struct tcphdr _tcphdr;
+
+ th = skb_header_pointer(skb, skb_transport_offset(skb),
+ sizeof(_tcphdr), &_tcphdr);
+ if (likely(th))
+ hdr_len += __tcp_hdrlen(th);
+ } else {
+ struct udphdr _udphdr;
+
+ if (skb_header_pointer(skb, skb_transport_offset(skb),
+ sizeof(_udphdr), &_udphdr))
+ hdr_len += sizeof(struct udphdr);
+ }
if (shinfo->gso_type & SKB_GSO_DODGY)
gso_segs = DIV_ROUND_UP(skb->len - hdr_len,
diff --git a/net/core/filter.c b/net/core/filter.c
index 4eb4ce0aeef4..e8c89d2d2bc0 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -441,6 +441,10 @@ do_pass:
convert_bpf_extensions(fp, &insn))
break;
+ if (fp->code == (BPF_ALU | BPF_DIV | BPF_X) ||
+ fp->code == (BPF_ALU | BPF_MOD | BPF_X))
+ *insn++ = BPF_MOV32_REG(BPF_REG_X, BPF_REG_X);
+
*insn = BPF_RAW_INSN(fp->code, BPF_REG_A, BPF_REG_X, 0, fp->k);
break;
@@ -1005,11 +1009,9 @@ static struct bpf_prog *bpf_migrate_filter(struct bpf_prog *fp)
*/
goto out_err_free;
- /* We are guaranteed to never error here with cBPF to eBPF
- * transitions, since there's no issue with type compatibility
- * checks on program arrays.
- */
fp = bpf_prog_select_runtime(fp, &err);
+ if (err)
+ goto out_err_free;
kfree(old_prog);
return fp;
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 32e4e0158846..862d63ec56e4 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -550,8 +550,8 @@ ip_proto_again:
out_good:
ret = true;
- key_control->thoff = (u16)nhoff;
out:
+ key_control->thoff = min_t(u16, nhoff, skb ? skb->len : hlen);
key_basic->n_proto = proto;
key_basic->ip_proto = ip_proto;
@@ -559,7 +559,6 @@ out:
out_bad:
ret = false;
- key_control->thoff = min_t(u16, nhoff, skb ? skb->len : hlen);
goto out;
}
EXPORT_SYMBOL(__skb_flow_dissect);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index f45f6198851f..7b315663f840 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -496,7 +496,7 @@ struct neighbour *__neigh_create(struct neigh_table *tbl, const void *pkey,
if (atomic_read(&tbl->entries) > (1 << nht->hash_shift))
nht = neigh_hash_grow(tbl, nht->hash_shift + 1);
- hash_val = tbl->hash(pkey, dev, nht->hash_rnd) >> (32 - nht->hash_shift);
+ hash_val = tbl->hash(n->primary_key, dev, nht->hash_rnd) >> (32 - nht->hash_shift);
if (n->parms->dead) {
rc = ERR_PTR(-EINVAL);
@@ -508,7 +508,7 @@ struct neighbour *__neigh_create(struct neigh_table *tbl, const void *pkey,
n1 != NULL;
n1 = rcu_dereference_protected(n1->next,
lockdep_is_held(&tbl->lock))) {
- if (dev == n1->dev && !memcmp(n1->primary_key, pkey, key_len)) {
+ if (dev == n1->dev && !memcmp(n1->primary_key, n->primary_key, key_len)) {
if (want_ref)
neigh_hold(n1);
rc = n1;
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index a7f05f0130e8..1b4619008c4e 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -292,7 +292,13 @@ static struct ctl_table net_core_table[] = {
.data = &bpf_jit_enable,
.maxlen = sizeof(int),
.mode = 0644,
+#ifndef CONFIG_BPF_JIT_ALWAYS_ON
.proc_handler = proc_dointvec
+#else
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &one,
+#endif
},
# ifdef CONFIG_HAVE_EBPF_JIT
{
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c
index 5e3a7302f774..7753681195c1 100644
--- a/net/dccp/ccids/ccid2.c
+++ b/net/dccp/ccids/ccid2.c
@@ -140,6 +140,9 @@ static void ccid2_hc_tx_rto_expire(unsigned long data)
ccid2_pr_debug("RTO_EXPIRE\n");
+ if (sk->sk_state == DCCP_CLOSED)
+ goto out;
+
/* back-off timer */
hc->tx_rto <<= 1;
if (hc->tx_rto > DCCP_RTO_MAX)
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 51b27ae09fbd..e60517eb1c3a 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -223,11 +223,16 @@ static bool arp_key_eq(const struct neighbour *neigh, const void *pkey)
static int arp_constructor(struct neighbour *neigh)
{
- __be32 addr = *(__be32 *)neigh->primary_key;
+ __be32 addr;
struct net_device *dev = neigh->dev;
struct in_device *in_dev;
struct neigh_parms *parms;
+ u32 inaddr_any = INADDR_ANY;
+ if (dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))
+ memcpy(neigh->primary_key, &inaddr_any, arp_tbl.key_len);
+
+ addr = *(__be32 *)neigh->primary_key;
rcu_read_lock();
in_dev = __in_dev_get_rcu(dev);
if (!in_dev) {
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 7bff0c65046f..9c7a4cea1628 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -332,7 +332,7 @@ static __be32 igmpv3_get_srcaddr(struct net_device *dev,
return htonl(INADDR_ANY);
for_ifa(in_dev) {
- if (inet_ifa_match(fl4->saddr, ifa))
+ if (fl4->saddr == ifa->ifa_local)
return fl4->saddr;
} endfor_ifa(in_dev);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 05d2bde00864..7efa6b062049 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2215,6 +2215,9 @@ adjudge_to_death:
tcp_send_active_reset(sk, GFP_ATOMIC);
__NET_INC_STATS(sock_net(sk),
LINUX_MIB_TCPABORTONMEMORY);
+ } else if (!check_net(sock_net(sk))) {
+ /* Not possible to send reset; just close */
+ tcp_set_state(sk, TCP_CLOSE);
}
}
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index bc68da38ea86..366b1becff9d 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -32,6 +32,9 @@ static void tcp_gso_tstamp(struct sk_buff *skb, unsigned int ts_seq,
static struct sk_buff *tcp4_gso_segment(struct sk_buff *skb,
netdev_features_t features)
{
+ if (!(skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4))
+ return ERR_PTR(-EINVAL);
+
if (!pskb_may_pull(skb, sizeof(struct tcphdr)))
return ERR_PTR(-EINVAL);
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 74db43b47917..69523389f067 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -50,11 +50,19 @@ static void tcp_write_err(struct sock *sk)
* to prevent DoS attacks. It is called when a retransmission timeout
* or zero probe timeout occurs on orphaned socket.
*
+ * Also close if our net namespace is exiting; in that case there is no
+ * hope of ever communicating again since all netns interfaces are already
+ * down (or about to be down), and we need to release our dst references,
+ * which have been moved to the netns loopback interface, so the namespace
+ * can finish exiting. This condition is only possible if we are a kernel
+ * socket, as those do not hold references to the namespace.
+ *
* Criteria is still not confirmed experimentally and may change.
* We kill the socket, if:
* 1. If number of orphaned sockets exceeds an administratively configured
* limit.
* 2. If we have strong memory pressure.
+ * 3. If our net namespace is exiting.
*/
static int tcp_out_of_resources(struct sock *sk, bool do_reset)
{
@@ -83,6 +91,13 @@ static int tcp_out_of_resources(struct sock *sk, bool do_reset)
__NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTONMEMORY);
return 1;
}
+
+ if (!check_net(sock_net(sk))) {
+ /* Not possible to send reset; just close */
+ tcp_done(sk);
+ return 1;
+ }
+
return 0;
}
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 6401574cd638..f4f616eaaeb8 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -205,6 +205,9 @@ static struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
goto out;
}
+ if (!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP))
+ goto out;
+
if (!pskb_may_pull(skb, sizeof(struct udphdr)))
goto out;
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index c46066c5dc27..db2613b4a049 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -337,11 +337,12 @@ static struct ip6_tnl *ip6gre_tunnel_locate(struct net *net,
nt->dev = dev;
nt->net = dev_net(dev);
- ip6gre_tnl_link_config(nt, 1);
if (register_netdevice(dev) < 0)
goto failed_free;
+ ip6gre_tnl_link_config(nt, 1);
+
/* Can use a lockless transmit, unless we generate output sequences */
if (!(nt->parms.o_flags & TUNNEL_SEQ))
dev->features |= NETIF_F_LLTX;
@@ -1263,7 +1264,6 @@ static void ip6gre_netlink_parms(struct nlattr *data[],
static int ip6gre_tap_init(struct net_device *dev)
{
- struct ip6_tnl *tunnel;
int ret;
ret = ip6gre_tunnel_init_common(dev);
@@ -1272,10 +1272,6 @@ static int ip6gre_tap_init(struct net_device *dev)
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
- tunnel = netdev_priv(dev);
-
- ip6gre_tnl_link_config(tunnel, 1);
-
return 0;
}
@@ -1370,7 +1366,6 @@ static int ip6gre_newlink(struct net *src_net, struct net_device *dev,
nt->dev = dev;
nt->net = dev_net(dev);
- ip6gre_tnl_link_config(nt, !tb[IFLA_MTU]);
dev->features |= GRE6_FEATURES;
dev->hw_features |= GRE6_FEATURES;
@@ -1396,6 +1391,11 @@ static int ip6gre_newlink(struct net *src_net, struct net_device *dev,
if (err)
goto out;
+ ip6gre_tnl_link_config(nt, !tb[IFLA_MTU]);
+
+ if (tb[IFLA_MTU])
+ ip6_tnl_change_mtu(dev, nla_get_u32(tb[IFLA_MTU]));
+
dev_hold(dev);
ip6gre_tunnel_link(ign, nt);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 388584b8ff31..2e3db3619858 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -156,7 +156,7 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}
-static bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np)
+bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np)
{
if (!np->autoflowlabel_set)
return ip6_default_np_autolabel(net);
@@ -1260,14 +1260,16 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
v6_cork->tclass = ipc6->tclass;
if (rt->dst.flags & DST_XFRM_TUNNEL)
mtu = np->pmtudisc >= IPV6_PMTUDISC_PROBE ?
- rt->dst.dev->mtu : dst_mtu(&rt->dst);
+ READ_ONCE(rt->dst.dev->mtu) : dst_mtu(&rt->dst);
else
mtu = np->pmtudisc >= IPV6_PMTUDISC_PROBE ?
- rt->dst.dev->mtu : dst_mtu(rt->dst.path);
+ READ_ONCE(rt->dst.dev->mtu) : dst_mtu(rt->dst.path);
if (np->frag_size < mtu) {
if (np->frag_size)
mtu = np->frag_size;
}
+ if (mtu < IPV6_MIN_MTU)
+ return -EINVAL;
cork->base.fragsize = mtu;
if (dst_allfrag(rt->dst.path))
cork->base.flags |= IPCORK_ALLFRAG;
@@ -1798,6 +1800,7 @@ struct sk_buff *ip6_make_skb(struct sock *sk,
cork.base.flags = 0;
cork.base.addr = 0;
cork.base.opt = NULL;
+ cork.base.dst = NULL;
v6_cork.opt = NULL;
err = ip6_setup_cork(sk, &cork, &v6_cork, ipc6, rt, fl6);
if (err) {
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 6e3871c7f8f7..bcea985dd76b 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -1316,7 +1316,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
break;
case IPV6_AUTOFLOWLABEL:
- val = np->autoflowlabel;
+ val = ip6_autoflowlabel(sock_net(sk), np);
break;
default:
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
index d883c9204c01..278e49cd67d4 100644
--- a/net/ipv6/tcpv6_offload.c
+++ b/net/ipv6/tcpv6_offload.c
@@ -46,6 +46,9 @@ static struct sk_buff *tcp6_gso_segment(struct sk_buff *skb,
{
struct tcphdr *th;
+ if (!(skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6))
+ return ERR_PTR(-EINVAL);
+
if (!pskb_may_pull(skb, sizeof(*th)))
return ERR_PTR(-EINVAL);
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index e7d378c032cb..2bd2087bd105 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -55,6 +55,9 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
const struct ipv6hdr *ipv6h;
struct udphdr *uh;
+ if (!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP))
+ goto out;
+
if (!pskb_may_pull(skb, sizeof(struct udphdr)))
goto out;
diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c
index 28d065394c09..3f499126727c 100644
--- a/net/netfilter/nfnetlink_cthelper.c
+++ b/net/netfilter/nfnetlink_cthelper.c
@@ -17,6 +17,7 @@
#include <linux/types.h>
#include <linux/list.h>
#include <linux/errno.h>
+#include <linux/capability.h>
#include <net/netlink.h>
#include <net/sock.h>
@@ -392,6 +393,9 @@ static int nfnl_cthelper_new(struct net *net, struct sock *nfnl,
struct nfnl_cthelper *nlcth;
int ret = 0;
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (!tb[NFCTH_NAME] || !tb[NFCTH_TUPLE])
return -EINVAL;
@@ -595,6 +599,9 @@ static int nfnl_cthelper_get(struct net *net, struct sock *nfnl,
struct nfnl_cthelper *nlcth;
bool tuple_set = false;
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (nlh->nlmsg_flags & NLM_F_DUMP) {
struct netlink_dump_control c = {
.dump = nfnl_cthelper_dump_table,
@@ -661,6 +668,9 @@ static int nfnl_cthelper_del(struct net *net, struct sock *nfnl,
struct nfnl_cthelper *nlcth, *n;
int j = 0, ret;
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (tb[NFCTH_NAME])
helper_name = nla_data(tb[NFCTH_NAME]);
diff --git a/net/netfilter/xt_osf.c b/net/netfilter/xt_osf.c
index 2455b69b5810..b589a62e68a2 100644
--- a/net/netfilter/xt_osf.c
+++ b/net/netfilter/xt_osf.c
@@ -19,6 +19,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/capability.h>
#include <linux/if.h>
#include <linux/inetdevice.h>
#include <linux/ip.h>
@@ -69,6 +70,9 @@ static int xt_osf_add_callback(struct net *net, struct sock *ctnl,
struct xt_osf_finger *kf = NULL, *sf;
int err = 0;
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (!osf_attrs[OSF_ATTR_FINGER])
return -EINVAL;
@@ -113,6 +117,9 @@ static int xt_osf_remove_callback(struct net *net, struct sock *ctnl,
struct xt_osf_finger *sf;
int err = -ENOENT;
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
if (!osf_attrs[OSF_ATTR_FINGER])
return -EINVAL;
diff --git a/net/sctp/offload.c b/net/sctp/offload.c
index 4f5a2b580aa5..6300f28c9588 100644
--- a/net/sctp/offload.c
+++ b/net/sctp/offload.c
@@ -44,6 +44,9 @@ static struct sk_buff *sctp_gso_segment(struct sk_buff *skb,
struct sk_buff *segs = ERR_PTR(-EINVAL);
struct sctphdr *sh;
+ if (!(skb_shinfo(skb)->gso_type & SKB_GSO_SCTP))
+ goto out;
+
sh = sctp_hdr(skb);
if (!pskb_may_pull(skb, sizeof(*sh)))
goto out;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 7181ce6c62bf..c472b8391dde 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -83,7 +83,7 @@
static int sctp_writeable(struct sock *sk);
static void sctp_wfree(struct sk_buff *skb);
static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
- size_t msg_len, struct sock **orig_sk);
+ size_t msg_len);
static int sctp_wait_for_packet(struct sock *sk, int *err, long *timeo_p);
static int sctp_wait_for_connect(struct sctp_association *, long *timeo_p);
static int sctp_wait_for_accept(struct sock *sk, long timeo);
@@ -332,16 +332,14 @@ static struct sctp_af *sctp_sockaddr_af(struct sctp_sock *opt,
if (len < sizeof (struct sockaddr))
return NULL;
+ if (!opt->pf->af_supported(addr->sa.sa_family, opt))
+ return NULL;
+
/* V4 mapped address are really of AF_INET family */
if (addr->sa.sa_family == AF_INET6 &&
- ipv6_addr_v4mapped(&addr->v6.sin6_addr)) {
- if (!opt->pf->af_supported(AF_INET, opt))
- return NULL;
- } else {
- /* Does this PF support this AF? */
- if (!opt->pf->af_supported(addr->sa.sa_family, opt))
- return NULL;
- }
+ ipv6_addr_v4mapped(&addr->v6.sin6_addr) &&
+ !opt->pf->af_supported(AF_INET, opt))
+ return NULL;
/* If we get this far, af is valid. */
af = sctp_get_af_specific(addr->sa.sa_family);
@@ -1958,7 +1956,7 @@ static int sctp_sendmsg(struct sock *sk, struct msghdr *msg, size_t msg_len)
timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT);
if (!sctp_wspace(asoc)) {
/* sk can be changed by peel off when waiting for buf. */
- err = sctp_wait_for_sndbuf(asoc, &timeo, msg_len, &sk);
+ err = sctp_wait_for_sndbuf(asoc, &timeo, msg_len);
if (err) {
if (err == -ESRCH) {
/* asoc is already dead. */
@@ -7441,12 +7439,12 @@ void sctp_sock_rfree(struct sk_buff *skb)
/* Helper function to wait for space in the sndbuf. */
static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
- size_t msg_len, struct sock **orig_sk)
+ size_t msg_len)
{
struct sock *sk = asoc->base.sk;
- int err = 0;
long current_timeo = *timeo_p;
DEFINE_WAIT(wait);
+ int err = 0;
pr_debug("%s: asoc:%p, timeo:%ld, msg_len:%zu\n", __func__, asoc,
*timeo_p, msg_len);
@@ -7475,17 +7473,13 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
release_sock(sk);
current_timeo = schedule_timeout(current_timeo);
lock_sock(sk);
- if (sk != asoc->base.sk) {
- release_sock(sk);
- sk = asoc->base.sk;
- lock_sock(sk);
- }
+ if (sk != asoc->base.sk)
+ goto do_error;
*timeo_p = current_timeo;
}
out:
- *orig_sk = sk;
finish_wait(&asoc->wait, &wait);
/* Release the association's refcnt. */
diff --git a/net/socket.c b/net/socket.c
index 05f13b24572c..bd3b33988ee0 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2548,6 +2548,15 @@ out_fs:
core_initcall(sock_init); /* early initcall */
+static int __init jit_init(void)
+{
+#ifdef CONFIG_BPF_JIT_ALWAYS_ON
+ bpf_jit_enable = 1;
+#endif
+ return 0;
+}
+pure_initcall(jit_init);
+
#ifdef CONFIG_PROC_FS
void socket_seq_show(struct seq_file *seq)
{
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 27753325e06e..5b3e1ea37b6d 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -1848,36 +1848,38 @@ int tipc_nl_node_get_link(struct sk_buff *skb, struct genl_info *info)
if (strcmp(name, tipc_bclink_name) == 0) {
err = tipc_nl_add_bc_link(net, &msg);
- if (err) {
- nlmsg_free(msg.skb);
- return err;
- }
+ if (err)
+ goto err_free;
} else {
int bearer_id;
struct tipc_node *node;
struct tipc_link *link;
node = tipc_node_find_by_name(net, name, &bearer_id);
- if (!node)
- return -EINVAL;
+ if (!node) {
+ err = -EINVAL;
+ goto err_free;
+ }
tipc_node_read_lock(node);
link = node->links[bearer_id].link;
if (!link) {
tipc_node_read_unlock(node);
- nlmsg_free(msg.skb);
- return -EINVAL;
+ err = -EINVAL;
+ goto err_free;
}
err = __tipc_nl_add_link(net, &msg, link, 0);
tipc_node_read_unlock(node);
- if (err) {
- nlmsg_free(msg.skb);
- return err;
- }
+ if (err)
+ goto err_free;
}
return genlmsg_reply(msg.skb, info);
+
+err_free:
+ nlmsg_free(msg.skb);
+ return err;
}
int tipc_nl_node_reset_link_stats(struct sk_buff *skb, struct genl_info *info)
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 11:51:01 +0000