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authorJae Hyun Yoo <jae.hyun.yoo@intel.com>2021-07-01 21:49:45 +0300
committerJae Hyun Yoo <jae.hyun.yoo@intel.com>2021-07-01 21:50:09 +0300
commit9ec121d97a292628e01462df8f13b017add3b034 (patch)
treef1abf6f81c13ce58bf04abf70e75fcbaf96935c3 /net/ipv4
parentab0d43fcc078edf3123887f9bff1e8ef7d87e641 (diff)
parentdd1e9367157f900616f0eae3cef897c23d4e7452 (diff)
downloadlinux-dev-5.10.46-intel.tar.xz
Merge branch 'dev-5.10' into dev-5.10-inteldev-5.10.46-intel
This is the 5.10.46 stable release. Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/cipso_ipv4.c1
-rw-r--r--net/ipv4/icmp.c7
-rw-r--r--net/ipv4/igmp.c1
-rw-r--r--net/ipv4/ipconfig.c13
-rw-r--r--net/ipv4/route.c15
-rw-r--r--net/ipv4/udp.c10
6 files changed, 41 insertions, 6 deletions
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index be09c7669a79..ca217a6f488f 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -472,6 +472,7 @@ void cipso_v4_doi_free(struct cipso_v4_doi *doi_def)
kfree(doi_def->map.std->lvl.local);
kfree(doi_def->map.std->cat.cipso);
kfree(doi_def->map.std->cat.local);
+ kfree(doi_def->map.std);
break;
}
kfree(doi_def);
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index ff3818333fcf..b71b836cc7d1 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -759,6 +759,13 @@ void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
icmp_param.data_len = room;
icmp_param.head_len = sizeof(struct icmphdr);
+ /* if we don't have a source address at this point, fall back to the
+ * dummy address instead of sending out a packet with a source address
+ * of 0.0.0.0
+ */
+ if (!fl4.saddr)
+ fl4.saddr = htonl(INADDR_DUMMY);
+
icmp_push_reply(&icmp_param, &fl4, &ipc, &rt);
ende:
ip_rt_put(rt);
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 7b272bbed2b4..6b3c558a4f23 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1801,6 +1801,7 @@ void ip_mc_destroy_dev(struct in_device *in_dev)
while ((i = rtnl_dereference(in_dev->mc_list)) != NULL) {
in_dev->mc_list = i->next_rcu;
in_dev->mc_count--;
+ ip_mc_clear_src(i);
ip_ma_put(i);
}
}
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 3cd13e1bc6a7..213a1c91507d 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -870,7 +870,7 @@ static void __init ic_bootp_send_if(struct ic_device *d, unsigned long jiffies_d
/*
- * Copy BOOTP-supplied string if not already set.
+ * Copy BOOTP-supplied string
*/
static int __init ic_bootp_string(char *dest, char *src, int len, int max)
{
@@ -919,12 +919,15 @@ static void __init ic_do_bootp_ext(u8 *ext)
}
break;
case 12: /* Host name */
- ic_bootp_string(utsname()->nodename, ext+1, *ext,
- __NEW_UTS_LEN);
- ic_host_name_set = 1;
+ if (!ic_host_name_set) {
+ ic_bootp_string(utsname()->nodename, ext+1, *ext,
+ __NEW_UTS_LEN);
+ ic_host_name_set = 1;
+ }
break;
case 15: /* Domain name (DNS) */
- ic_bootp_string(ic_domain, ext+1, *ext, sizeof(ic_domain));
+ if (!ic_domain[0])
+ ic_bootp_string(ic_domain, ext+1, *ext, sizeof(ic_domain));
break;
case 17: /* Root path */
if (!root_server_path[0])
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 798dc85bde5b..e968bb47d5bd 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2076,6 +2076,19 @@ martian_source:
return err;
}
+/* get device for dst_alloc with local routes */
+static struct net_device *ip_rt_get_dev(struct net *net,
+ const struct fib_result *res)
+{
+ struct fib_nh_common *nhc = res->fi ? res->nhc : NULL;
+ struct net_device *dev = NULL;
+
+ if (nhc)
+ dev = l3mdev_master_dev_rcu(nhc->nhc_dev);
+
+ return dev ? : net->loopback_dev;
+}
+
/*
* NOTE. We drop all the packets that has local source
* addresses, because every properly looped back packet
@@ -2232,7 +2245,7 @@ local_input:
}
}
- rth = rt_dst_alloc(l3mdev_master_dev_rcu(dev) ? : net->loopback_dev,
+ rth = rt_dst_alloc(ip_rt_get_dev(net, res),
flags | RTCF_LOCAL, res->type,
IN_DEV_CONF_GET(in_dev, NOPOLICY), false);
if (!rth)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 9d28b2778e8f..fbb9a11fe4a3 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2569,6 +2569,9 @@ void udp_destroy_sock(struct sock *sk)
{
struct udp_sock *up = udp_sk(sk);
bool slow = lock_sock_fast(sk);
+
+ /* protects from races with udp_abort() */
+ sock_set_flag(sk, SOCK_DEAD);
udp_flush_pending_frames(sk);
unlock_sock_fast(sk, slow);
if (static_branch_unlikely(&udp_encap_needed_key)) {
@@ -2819,10 +2822,17 @@ int udp_abort(struct sock *sk, int err)
{
lock_sock(sk);
+ /* udp{v6}_destroy_sock() sets it under the sk lock, avoid racing
+ * with close()
+ */
+ if (sock_flag(sk, SOCK_DEAD))
+ goto out;
+
sk->sk_err = err;
sk->sk_error_report(sk);
__udp_disconnect(sk, 0);
+out:
release_sock(sk);
return 0;