Merge tag 'net-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netHEADmaster

Pull networking fixes from Jakub Kicinski:
 "Including fixes from Bluetooth, CAN, WiFi and Netfilter.

  More code here than I would have liked. That said, better now than
  next week. Nothing particularly scary stands out. The improvement to
  the OpenVPN input validation is a bit large but better get them in
  before the code makes it to a final release. Some of the changes we
  got from sub-trees could have been split better between the fix and
  -next refactoring, IMHO, that has been communicated.

  We have one known regression in a TI AM65 board not getting link. The
  investigation is going a bit slow, a number of people are on vacation.
  We'll try to wrap it up, but don't think it should hold up the
  release.

  Current release - fix to a fix:

   - Bluetooth: L2CAP: fix attempting to adjust outgoing MTU, it broke
     some headphones and speakers

  Current release - regressions:

   - wifi: ath12k: fix packets received in WBM error ring with REO LUT
     enabled, fix Rx performance regression

   - wifi: iwlwifi:
       - fix crash due to a botched indexing conversion
       - mask reserved bits in chan_state_active_bitmap, avoid FW assert()

  Current release - new code bugs:

   - nf_conntrack: fix crash due to removal of uninitialised entry

   - eth: airoha: fix potential UaF in airoha_npu_get()

  Previous releases - regressions:

   - net: fix segmentation after TCP/UDP fraglist GRO

   - af_packet: fix the SO_SNDTIMEO constraint not taking effect and a
     potential soft lockup waiting for a completion

   - rpl: fix UaF in rpl_do_srh_inline() for sneaky skb geometry

   - virtio-net: fix recursive rtnl_lock() during probe()

   - eth: stmmac: populate entire system_counterval_t in get_time_fn()

   - eth: libwx: fix a number of crashes in the driver Rx path

   - hv_netvsc: prevent IPv6 addrconf after IFF_SLAVE lost that meaning

  Previous releases - always broken:

   - mptcp: fix races in handling connection fallback to pure TCP

   - rxrpc: assorted error handling and race fixes

   - sched: another batch of "security" fixes for qdiscs (QFQ, HTB)

   - tls: always refresh the queue when reading sock, avoid UaF

   - phy: don't register LEDs for genphy, avoid deadlock

   - Bluetooth: btintel: check if controller is ISO capable on
     btintel_classify_pkt_type(), work around FW returning incorrect
     capabilities

  Misc:

   - make OpenVPN Netlink input checking more strict before it makes it
     to a final release

   - wifi: cfg80211: remove scan request n_channels __counted_by, it's
     only yielding false positives"

* tag 'net-6.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (66 commits)
  rxrpc: Fix to use conn aborts for conn-wide failures
  rxrpc: Fix transmission of an abort in response to an abort
  rxrpc: Fix notification vs call-release vs recvmsg
  rxrpc: Fix recv-recv race of completed call
  rxrpc: Fix irq-disabled in local_bh_enable()
  selftests/tc-testing: Test htb_dequeue_tree with deactivation and row emptying
  net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree
  net: bridge: Do not offload IGMP/MLD messages
  selftests: Add test cases for vlan_filter modification during runtime
  net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime
  tls: always refresh the queue when reading sock
  virtio-net: fix recursived rtnl_lock() during probe()
  net/mlx5: Update the list of the PCI supported devices
  hv_netvsc: Set VF priv_flags to IFF_NO_ADDRCONF before open to prevent IPv6 addrconf
  phonet/pep: Move call to pn_skb_get_dst_sockaddr() earlier in pep_sock_accept()
  Bluetooth: L2CAP: Fix attempting to adjust outgoing MTU
  netfilter: nf_conntrack: fix crash due to removal of uninitialised entry
  net: fix segmentation after TCP/UDP fraglist GRO
  ipv6: mcast: Delay put pmc->idev in mld_del_delrec()
  net: airoha: fix potential use-after-free in airoha_npu_get()
  ...

5 files changed, 112 insertions, 14 deletions

diff --git a/drivers/net/ovpn/io.c b/drivers/net/ovpn/io.c
index ebf1e849506b5..3e9e7f8444b34 100644
--- a/drivers/net/ovpn/io.c
+++ b/drivers/net/ovpn/io.c
@@ -62,6 +62,13 @@ static void ovpn_netdev_write(struct ovpn_peer *peer, struct sk_buff *skb)
 	unsigned int pkt_len;
 	int ret;
 
+	/*
+	 * GSO state from the transport layer is not valid for the tunnel/data
+	 * path. Reset all GSO fields to prevent any further GSO processing
+	 * from entering an inconsistent state.
+	 */
+	skb_gso_reset(skb);
+
 	/* we can't guarantee the packet wasn't corrupted before entering the
 	 * VPN, therefore we give other layers a chance to check that
 	 */
diff --git a/drivers/net/ovpn/netlink-gen.c b/drivers/net/ovpn/netlink-gen.c
index 58e1a4342378e..14298188c5f16 100644
--- a/drivers/net/ovpn/netlink-gen.c
+++ b/drivers/net/ovpn/netlink-gen.c
@@ -29,6 +29,22 @@ const struct nla_policy ovpn_keyconf_nl_policy[OVPN_A_KEYCONF_DECRYPT_DIR + 1] =
 	[OVPN_A_KEYCONF_DECRYPT_DIR] = NLA_POLICY_NESTED(ovpn_keydir_nl_policy),
 };
 
+const struct nla_policy ovpn_keyconf_del_input_nl_policy[OVPN_A_KEYCONF_SLOT + 1] = {
+	[OVPN_A_KEYCONF_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_keyconf_peer_id_range),
+	[OVPN_A_KEYCONF_SLOT] = NLA_POLICY_MAX(NLA_U32, 1),
+};
+
+const struct nla_policy ovpn_keyconf_get_nl_policy[OVPN_A_KEYCONF_CIPHER_ALG + 1] = {
+	[OVPN_A_KEYCONF_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_keyconf_peer_id_range),
+	[OVPN_A_KEYCONF_SLOT] = NLA_POLICY_MAX(NLA_U32, 1),
+	[OVPN_A_KEYCONF_KEY_ID] = NLA_POLICY_MAX(NLA_U32, 7),
+	[OVPN_A_KEYCONF_CIPHER_ALG] = NLA_POLICY_MAX(NLA_U32, 2),
+};
+
+const struct nla_policy ovpn_keyconf_swap_input_nl_policy[OVPN_A_KEYCONF_PEER_ID + 1] = {
+	[OVPN_A_KEYCONF_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_keyconf_peer_id_range),
+};
+
 const struct nla_policy ovpn_keydir_nl_policy[OVPN_A_KEYDIR_NONCE_TAIL + 1] = {
 	[OVPN_A_KEYDIR_CIPHER_KEY] = NLA_POLICY_MAX_LEN(256),
 	[OVPN_A_KEYDIR_NONCE_TAIL] = NLA_POLICY_EXACT_LEN(OVPN_NONCE_TAIL_SIZE),
@@ -60,16 +76,49 @@ const struct nla_policy ovpn_peer_nl_policy[OVPN_A_PEER_LINK_TX_PACKETS + 1] = {
 	[OVPN_A_PEER_LINK_TX_PACKETS] = { .type = NLA_UINT, },
 };
 
+const struct nla_policy ovpn_peer_del_input_nl_policy[OVPN_A_PEER_ID + 1] = {
+	[OVPN_A_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_peer_id_range),
+};
+
+const struct nla_policy ovpn_peer_new_input_nl_policy[OVPN_A_PEER_KEEPALIVE_TIMEOUT + 1] = {
+	[OVPN_A_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_peer_id_range),
+	[OVPN_A_PEER_REMOTE_IPV4] = { .type = NLA_BE32, },
+	[OVPN_A_PEER_REMOTE_IPV6] = NLA_POLICY_EXACT_LEN(16),
+	[OVPN_A_PEER_REMOTE_IPV6_SCOPE_ID] = { .type = NLA_U32, },
+	[OVPN_A_PEER_REMOTE_PORT] = NLA_POLICY_MIN(NLA_BE16, 1),
+	[OVPN_A_PEER_SOCKET] = { .type = NLA_U32, },
+	[OVPN_A_PEER_VPN_IPV4] = { .type = NLA_BE32, },
+	[OVPN_A_PEER_VPN_IPV6] = NLA_POLICY_EXACT_LEN(16),
+	[OVPN_A_PEER_LOCAL_IPV4] = { .type = NLA_BE32, },
+	[OVPN_A_PEER_LOCAL_IPV6] = NLA_POLICY_EXACT_LEN(16),
+	[OVPN_A_PEER_KEEPALIVE_INTERVAL] = { .type = NLA_U32, },
+	[OVPN_A_PEER_KEEPALIVE_TIMEOUT] = { .type = NLA_U32, },
+};
+
+const struct nla_policy ovpn_peer_set_input_nl_policy[OVPN_A_PEER_KEEPALIVE_TIMEOUT + 1] = {
+	[OVPN_A_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_peer_id_range),
+	[OVPN_A_PEER_REMOTE_IPV4] = { .type = NLA_BE32, },
+	[OVPN_A_PEER_REMOTE_IPV6] = NLA_POLICY_EXACT_LEN(16),
+	[OVPN_A_PEER_REMOTE_IPV6_SCOPE_ID] = { .type = NLA_U32, },
+	[OVPN_A_PEER_REMOTE_PORT] = NLA_POLICY_MIN(NLA_BE16, 1),
+	[OVPN_A_PEER_VPN_IPV4] = { .type = NLA_BE32, },
+	[OVPN_A_PEER_VPN_IPV6] = NLA_POLICY_EXACT_LEN(16),
+	[OVPN_A_PEER_LOCAL_IPV4] = { .type = NLA_BE32, },
+	[OVPN_A_PEER_LOCAL_IPV6] = NLA_POLICY_EXACT_LEN(16),
+	[OVPN_A_PEER_KEEPALIVE_INTERVAL] = { .type = NLA_U32, },
+	[OVPN_A_PEER_KEEPALIVE_TIMEOUT] = { .type = NLA_U32, },
+};
+
 /* OVPN_CMD_PEER_NEW - do */
 static const struct nla_policy ovpn_peer_new_nl_policy[OVPN_A_PEER + 1] = {
 	[OVPN_A_IFINDEX] = { .type = NLA_U32, },
-	[OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_nl_policy),
+	[OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_new_input_nl_policy),
 };
 
 /* OVPN_CMD_PEER_SET - do */
 static const struct nla_policy ovpn_peer_set_nl_policy[OVPN_A_PEER + 1] = {
 	[OVPN_A_IFINDEX] = { .type = NLA_U32, },
-	[OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_nl_policy),
+	[OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_set_input_nl_policy),
 };
 
 /* OVPN_CMD_PEER_GET - do */
@@ -86,7 +135,7 @@ static const struct nla_policy ovpn_peer_get_dump_nl_policy[OVPN_A_IFINDEX + 1]
 /* OVPN_CMD_PEER_DEL - do */
 static const struct nla_policy ovpn_peer_del_nl_policy[OVPN_A_PEER + 1] = {
 	[OVPN_A_IFINDEX] = { .type = NLA_U32, },
-	[OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_nl_policy),
+	[OVPN_A_PEER] = NLA_POLICY_NESTED(ovpn_peer_del_input_nl_policy),
 };
 
 /* OVPN_CMD_KEY_NEW - do */
@@ -98,19 +147,19 @@ static const struct nla_policy ovpn_key_new_nl_policy[OVPN_A_KEYCONF + 1] = {
 /* OVPN_CMD_KEY_GET - do */
 static const struct nla_policy ovpn_key_get_nl_policy[OVPN_A_KEYCONF + 1] = {
 	[OVPN_A_IFINDEX] = { .type = NLA_U32, },
-	[OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_nl_policy),
+	[OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_get_nl_policy),
 };
 
 /* OVPN_CMD_KEY_SWAP - do */
 static const struct nla_policy ovpn_key_swap_nl_policy[OVPN_A_KEYCONF + 1] = {
 	[OVPN_A_IFINDEX] = { .type = NLA_U32, },
-	[OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_nl_policy),
+	[OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_swap_input_nl_policy),
 };
 
 /* OVPN_CMD_KEY_DEL - do */
 static const struct nla_policy ovpn_key_del_nl_policy[OVPN_A_KEYCONF + 1] = {
 	[OVPN_A_IFINDEX] = { .type = NLA_U32, },
-	[OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_nl_policy),
+	[OVPN_A_KEYCONF] = NLA_POLICY_NESTED(ovpn_keyconf_del_input_nl_policy),
 };
 
 /* Ops table for ovpn */
diff --git a/drivers/net/ovpn/netlink-gen.h b/drivers/net/ovpn/netlink-gen.h
index 66a4e4a0a055b..220b5b2fdd4f2 100644
--- a/drivers/net/ovpn/netlink-gen.h
+++ b/drivers/net/ovpn/netlink-gen.h
@@ -13,8 +13,14 @@
 
 /* Common nested types */
 extern const struct nla_policy ovpn_keyconf_nl_policy[OVPN_A_KEYCONF_DECRYPT_DIR + 1];
+extern const struct nla_policy ovpn_keyconf_del_input_nl_policy[OVPN_A_KEYCONF_SLOT + 1];
+extern const struct nla_policy ovpn_keyconf_get_nl_policy[OVPN_A_KEYCONF_CIPHER_ALG + 1];
+extern const struct nla_policy ovpn_keyconf_swap_input_nl_policy[OVPN_A_KEYCONF_PEER_ID + 1];
 extern const struct nla_policy ovpn_keydir_nl_policy[OVPN_A_KEYDIR_NONCE_TAIL + 1];
 extern const struct nla_policy ovpn_peer_nl_policy[OVPN_A_PEER_LINK_TX_PACKETS + 1];
+extern const struct nla_policy ovpn_peer_del_input_nl_policy[OVPN_A_PEER_ID + 1];
+extern const struct nla_policy ovpn_peer_new_input_nl_policy[OVPN_A_PEER_KEEPALIVE_TIMEOUT + 1];
+extern const struct nla_policy ovpn_peer_set_input_nl_policy[OVPN_A_PEER_KEEPALIVE_TIMEOUT + 1];
 
 int ovpn_nl_pre_doit(const struct genl_split_ops *ops, struct sk_buff *skb,
 		     struct genl_info *info);
diff --git a/drivers/net/ovpn/netlink.c b/drivers/net/ovpn/netlink.c
index a4ec53def46ea..c7f3824376302 100644
--- a/drivers/net/ovpn/netlink.c
+++ b/drivers/net/ovpn/netlink.c
@@ -352,7 +352,7 @@ int ovpn_nl_peer_new_doit(struct sk_buff *skb, struct genl_info *info)
 		return -EINVAL;
 
 	ret = nla_parse_nested(attrs, OVPN_A_PEER_MAX, info->attrs[OVPN_A_PEER],
-			       ovpn_peer_nl_policy, info->extack);
+			       ovpn_peer_new_input_nl_policy, info->extack);
 	if (ret)
 		return ret;
 
@@ -476,7 +476,7 @@ int ovpn_nl_peer_set_doit(struct sk_buff *skb, struct genl_info *info)
 		return -EINVAL;
 
 	ret = nla_parse_nested(attrs, OVPN_A_PEER_MAX, info->attrs[OVPN_A_PEER],
-			       ovpn_peer_nl_policy, info->extack);
+			       ovpn_peer_set_input_nl_policy, info->extack);
 	if (ret)
 		return ret;
 
@@ -654,7 +654,7 @@ int ovpn_nl_peer_get_doit(struct sk_buff *skb, struct genl_info *info)
 	struct ovpn_peer *peer;
 	struct sk_buff *msg;
 	u32 peer_id;
-	int ret;
+	int ret, i;
 
 	if (GENL_REQ_ATTR_CHECK(info, OVPN_A_PEER))
 		return -EINVAL;
@@ -668,6 +668,23 @@ int ovpn_nl_peer_get_doit(struct sk_buff *skb, struct genl_info *info)
 			      OVPN_A_PEER_ID))
 		return -EINVAL;
 
+	/* OVPN_CMD_PEER_GET expects only the PEER_ID, therefore
+	 * ensure that the user hasn't specified any other attribute.
+	 *
+	 * Unfortunately this check cannot be performed via netlink
+	 * spec/policy and must be open-coded.
+	 */
+	for (i = 0; i < OVPN_A_PEER_MAX + 1; i++) {
+		if (i == OVPN_A_PEER_ID)
+			continue;
+
+		if (attrs[i]) {
+			NL_SET_ERR_MSG_FMT_MOD(info->extack,
+					       "unexpected attribute %u", i);
+			return -EINVAL;
+		}
+	}
+
 	peer_id = nla_get_u32(attrs[OVPN_A_PEER_ID]);
 	peer = ovpn_peer_get_by_id(ovpn, peer_id);
 	if (!peer) {
@@ -768,7 +785,7 @@ int ovpn_nl_peer_del_doit(struct sk_buff *skb, struct genl_info *info)
 		return -EINVAL;
 
 	ret = nla_parse_nested(attrs, OVPN_A_PEER_MAX, info->attrs[OVPN_A_PEER],
-			       ovpn_peer_nl_policy, info->extack);
+			       ovpn_peer_del_input_nl_policy, info->extack);
 	if (ret)
 		return ret;
 
@@ -969,14 +986,14 @@ int ovpn_nl_key_get_doit(struct sk_buff *skb, struct genl_info *info)
 	struct ovpn_peer *peer;
 	struct sk_buff *msg;
 	u32 peer_id;
-	int ret;
+	int ret, i;
 
 	if (GENL_REQ_ATTR_CHECK(info, OVPN_A_KEYCONF))
 		return -EINVAL;
 
 	ret = nla_parse_nested(attrs, OVPN_A_KEYCONF_MAX,
 			       info->attrs[OVPN_A_KEYCONF],
-			       ovpn_keyconf_nl_policy, info->extack);
+			       ovpn_keyconf_get_nl_policy, info->extack);
 	if (ret)
 		return ret;
 
@@ -988,6 +1005,24 @@ int ovpn_nl_key_get_doit(struct sk_buff *skb, struct genl_info *info)
 			      OVPN_A_KEYCONF_SLOT))
 		return -EINVAL;
 
+	/* OVPN_CMD_KEY_GET expects only the PEER_ID and the SLOT, therefore
+	 * ensure that the user hasn't specified any other attribute.
+	 *
+	 * Unfortunately this check cannot be performed via netlink
+	 * spec/policy and must be open-coded.
+	 */
+	for (i = 0; i < OVPN_A_KEYCONF_MAX + 1; i++) {
+		if (i == OVPN_A_KEYCONF_PEER_ID ||
+		    i == OVPN_A_KEYCONF_SLOT)
+			continue;
+
+		if (attrs[i]) {
+			NL_SET_ERR_MSG_FMT_MOD(info->extack,
+					       "unexpected attribute %u", i);
+			return -EINVAL;
+		}
+	}
+
 	peer_id = nla_get_u32(attrs[OVPN_A_KEYCONF_PEER_ID]);
 	peer = ovpn_peer_get_by_id(ovpn, peer_id);
 	if (!peer) {
@@ -1037,7 +1072,7 @@ int ovpn_nl_key_swap_doit(struct sk_buff *skb, struct genl_info *info)
 
 	ret = nla_parse_nested(attrs, OVPN_A_KEYCONF_MAX,
 			       info->attrs[OVPN_A_KEYCONF],
-			       ovpn_keyconf_nl_policy, info->extack);
+			       ovpn_keyconf_swap_input_nl_policy, info->extack);
 	if (ret)
 		return ret;
 
@@ -1074,7 +1109,7 @@ int ovpn_nl_key_del_doit(struct sk_buff *skb, struct genl_info *info)
 
 	ret = nla_parse_nested(attrs, OVPN_A_KEYCONF_MAX,
 			       info->attrs[OVPN_A_KEYCONF],
-			       ovpn_keyconf_nl_policy, info->extack);
+			       ovpn_keyconf_del_input_nl_policy, info->extack);
 	if (ret)
 		return ret;
 
diff --git a/drivers/net/ovpn/udp.c b/drivers/net/ovpn/udp.c
index bff00946eae2d..60435a21f29ca 100644
--- a/drivers/net/ovpn/udp.c
+++ b/drivers/net/ovpn/udp.c
@@ -344,6 +344,7 @@ void ovpn_udp_send_skb(struct ovpn_peer *peer, struct sock *sk,
 	int ret;
 
 	skb->dev = peer->ovpn->dev;
+	skb->mark = READ_ONCE(sk->sk_mark);
 	/* no checksum performed at this layer */
 	skb->ip_summed = CHECKSUM_NONE;