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Jonas Gorski a8d549eb5a net: dsa: tag_brcm: legacy: fix untagged rx on unbridged ports for bcm63xx ... [ Upstream commit 3d18a84edd ] The internal switch on BCM63XX SoCs will unconditionally add 802.1Q VLAN tags on egress to CPU when 802.1Q mode is enabled. We do this unconditionally since commit ed409f3bba ("net: dsa: b53: Configure VLANs while not filtering"). This is fine for VLAN aware bridges, but for standalone ports and vlan unaware bridges this means all packets are tagged with the default VID, which is 0. While the kernel will treat that like untagged, this can break userspace applications processing raw packets, expecting untagged traffic, like STP daemons. This also breaks several bridge tests, where the tcpdump output then does not match the expected output anymore. Since 0 isn't a valid VID, just strip out the VLAN tag if we encounter it, unless the priority field is set, since that would be a valid tag again. Fixes: 964dbf186e ("net: dsa: tag_brcm: add support for legacy tags") Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://patch.msgid.link/20251027194621.133301-1-jonas.gorski@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-12-07 06:09:25 +09:00
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6lowpan	6lowpan: iphc: Fix an off-by-one check of array index	2021-07-22 16:19:03 +02:00
9p	net/9p: fix double req put in p9_fd_cancelled	2025-10-19 16:21:28 +02:00
802	net: 802: LLC+SNAP OID:PID lookup on start of skb data	2025-01-23 17:15:49 +01:00
8021q	net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime	2025-08-28 16:24:02 +02:00
appletalk	net: appletalk: Fix use-after-free in AARP proxy probe	2025-08-28 16:24:04 +02:00
atm	net: atm: fix memory leak in atm_register_sysfs when device_register fail	2025-09-09 18:50:20 +02:00
ax25	ax25: properly unshare skbs in ax25_kiss_rcv()	2025-09-09 18:50:20 +02:00
batman-adv	batman-adv: fix OOB read/write in network-coding decode	2025-09-09 18:50:21 +02:00
bluetooth	Bluetooth: SCO: Fix UAF on sco_conn_free	2025-12-07 06:09:23 +09:00
bpf	bpf: Set run context for rawtp test_run callback	2024-07-05 09:14:06 +02:00
bpfilter	bpfilter: Specify the log level for the kmsg message	2021-06-25 13:13:50 +02:00
bridge	bridge: Redirect to backup port when port is administratively down	2025-12-07 06:09:19 +09:00
caif	caif: reduce stack size, again	2025-08-28 16:24:07 +02:00
can	can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails	2025-10-02 13:39:03 +02:00
ceph	libceph: fix invalid accesses to ceph_connection_v1_info	2025-10-02 13:39:01 +02:00
core	page_pool: Clamp pool size to max 16K pages	2025-12-07 06:09:24 +09:00
dcb	net: dcb: choose correct policy to parse DCB_ATTR_BCN	2023-08-11 15:13:53 +02:00
dccp	net: fix data-races around sk->sk_forward_alloc	2025-01-23 17:16:04 +01:00
dns_resolver	keys, dns: Fix size check of V1 server-list header	2024-01-25 14:52:46 -08:00
dsa	net: dsa: tag_brcm: legacy: fix untagged rx on unbridged ports for bcm63xx	2025-12-07 06:09:25 +09:00
ethernet	gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers	2024-09-12 11:07:47 +02:00
ethtool	net: ethtool: Don't call .cleanup_data when prepare_data fails	2025-05-02 07:43:52 +02:00
hsr	net: hsr: hsr_slave: Fix the promiscuous mode in offload mode	2025-10-02 13:39:05 +02:00
ieee802154	net: ieee802154: do not leave a dangling sk pointer in ieee802154_create()	2024-12-14 19:51:37 +01:00
ife	net: sched: ife: fix potential use-after-free	2024-01-05 15:13:29 +01:00
ipv4	udp_tunnel: use netdev_warn() instead of netdev_WARN()	2025-12-07 06:09:22 +09:00
ipv6	ipv6: np->rxpmtu race annotation	2025-12-07 06:09:22 +09:00
iucv	s390/iucv: fix receive buffer virtual vs physical address confusion	2024-09-04 13:23:27 +02:00
kcm	kcm: Serialise kcm_sendmsg() for the same socket.	2024-09-04 13:23:32 +02:00
key	net: af_key: fix sadb_x_filter validation	2023-08-26 14:23:32 +02:00
l2tp	genetlink: hold RCU in genlmsg_mcast()	2024-11-01 01:52:34 +01:00
l3mdev	net: Add l3mdev index to flow struct and avoid oif reset for port devices	2024-10-17 15:11:57 +02:00
lapb	net: lapb: Use list_for_each_entry() to simplify code in lapb_iface.c	2021-06-08 16:31:25 -07:00
llc	llc: fix data loss when reading from a socket in llc_ui_recvmsg()	2025-06-04 14:38:06 +02:00
mac80211	wifi: mac80211: fix incorrect type for ret	2025-10-02 13:39:05 +02:00
mac802154	mac802154: check local interfaces before deleting sdata list	2025-01-23 17:16:00 +01:00
mctp	net: mctp: Prevent duplicate binds	2025-08-28 16:24:20 +02:00
mpls	mpls: Use rcu_dereference_rtnl() in mpls_route_input_rcu().	2025-06-27 11:05:36 +01:00
mptcp	mptcp: restore window probe	2025-12-07 06:09:13 +09:00
ncsi	net: ncsi: Fix buffer overflow in fetching version id	2025-08-28 16:24:22 +02:00
netfilter	ipvs: Defer ip_vs_ftp unregister during netns cleanup	2025-10-19 16:21:36 +02:00
netlabel	calipso: unlock rcu before returning -EAFNOSUPPORT	2025-06-27 11:05:22 +01:00
netlink	netlink: avoid infinite retry looping in netlink_unicast()	2025-08-28 16:24:15 +02:00
netrom	netrom: check buffer length before accessing it	2025-01-09 13:28:46 +01:00
nfc	net: nfc: nci: Add parameter validation for packet data	2025-10-19 16:21:38 +02:00
nsh	nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().	2024-05-17 11:50:48 +02:00
openvswitch	net: openvswitch: Fix the dead loop of MPLS parse	2025-06-27 11:05:14 +01:00
packet	net/packet: fix a race in packet_set_ring() and packet_notifier()	2025-08-28 16:24:14 +02:00
phonet	phonet/pep: Move call to pn_skb_get_dst_sockaddr() earlier in pep_sock_accept()	2025-08-28 16:23:59 +02:00
psample	psample: Require 'CAP_NET_ADMIN' when joining "packets" group	2023-12-13 18:36:37 +01:00
qrtr	net: qrtr: Update packets cloning when broadcasting	2024-10-17 15:11:08 +02:00
rds	rds: Fix endianness annotation for RDS_MPATH_HASH	2025-12-07 06:09:19 +09:00
rfkill	net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer	2025-10-02 13:39:09 +02:00
rose	rose: fix dangling neighbour pointers in rose_rt_device_down()	2025-07-10 15:57:46 +02:00
rxrpc	rxrpc: Fix oops due to non-existence of prealloc backlog struct	2025-07-17 18:30:48 +02:00
sched	net/sched: sch_qfq: Fix null-deref in agg_dequeue	2025-12-07 06:09:12 +09:00
sctp	sctp: avoid NULL dereference when chunk data buffer is missing	2025-10-29 14:03:11 +01:00
smc	net/smc: fix data error when recvmsg with MSG_PEEK flag	2025-03-13 12:49:57 +01:00
strparser	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding	2021-11-18 19:17:11 +01:00
sunrpc	sunrpc: fix race in cache cleanup causing stale nextcheck time	2025-06-27 11:05:29 +01:00
switchdev	net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge	2021-08-04 12:35:07 +01:00
tipc	minmax: add in_range() macro	2025-10-19 16:21:28 +02:00
tls	tls: don't rely on tx_work during send()	2025-10-29 14:03:08 +01:00
unix	af_unix: Don't leave consecutive consumed OOB skbs.	2025-10-02 13:39:14 +02:00
vmw_vsock	vsock: fix lock inversion in vsock_assign_transport()	2025-10-29 14:03:12 +01:00
wireless	wifi: cfg80211: fix use-after-free in cmp_bss()	2025-09-09 18:50:18 +02:00
x25	net/x25: fix incorrect parameter validation in the x25_getsockopt() function	2024-03-26 18:21:23 -04:00
xdp	xsk: fix OOB map writes when deleting elements	2024-12-14 19:51:33 +01:00
xfrm	xfrm: Sanitize marks before insert	2025-06-04 14:38:05 +02:00
compat.c	net: Return the correct errno code	2021-06-03 15:13:56 -07:00
devres.c	net: devres: Correct a grammatical error	2021-06-11 12:55:28 -07:00
Kconfig	Remove DECnet support from kernel	2023-06-21 15:59:15 +02:00
Makefile	Remove DECnet support from kernel	2023-06-21 15:59:15 +02:00
socket.c	splice, net: Add a splice_eof op to file-ops and socket-ops	2025-10-29 14:03:08 +01:00
sysctl_net.c	net: Ensure net namespace isolation of sysctls	2021-04-12 13:27:11 -07:00