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Kurt Kanzenbach b5e7653ffd net: hsr: Reset MAC header for Tx path 
commit 9d6803921a upstream.

Reset MAC header in HSR Tx path. This is needed, because direct packet
transmission, e.g. by specifying PACKET_QDISC_BYPASS does not reset the MAC
header.

This has been observed using the following setup:

|$ ip link add name hsr0 type hsr slave1 lan0 slave2 lan1 supervision 45 version 1
|$ ifconfig hsr0 up
|$ ./test hsr0

The test binary is using mmap'ed sockets and is specifying the
PACKET_QDISC_BYPASS socket option.

This patch resolves the following warning on a non-patched kernel:

|[  112.725394] ------------[ cut here ]------------
|[  112.731418] WARNING: CPU: 1 PID: 257 at net/hsr/hsr_forward.c:560 hsr_forward_skb+0x484/0x568
|[  112.739962] net/hsr/hsr_forward.c:560: Malformed frame (port_src hsr0)

The warning can be safely removed, because the other call sites of
hsr_forward_skb() make sure that the skb is prepared correctly.

Fixes: d346a3fae3 ("packet: introduce PACKET_QDISC_BYPASS socket option")
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-14 08:24:12 +02:00
..
6lowpan
9p net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid 2020-11-05 11:43:20 +01:00
802
8021q net: vlan: avoid leaks on register_vlan_dev() failures 2021-01-17 14:05:31 +01:00
appletalk appletalk: Fix skb allocation size in loopback case 2021-04-07 14:47:41 +02:00
atm atm: fix a memory leak of vcc->user_back 2020-10-01 13:17:58 +02:00
ax25 AX.25: Prevent integer overflows in connect and sendmsg 2020-07-31 18:39:31 +02:00
batman-adv batman-adv: initialize "struct batadv_tvlv_tt_vlan_data"->reserved field 2021-04-14 08:24:11 +02:00
bluetooth Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 2021-03-07 12:20:45 +01:00
bpf
bpfilter net/bpfilter: remove superfluous testing message 2020-04-21 09:04:53 +02:00
bridge net: bridge: use switchdev for port flags set through sysfs too 2021-03-07 12:20:43 +01:00
caif net: use skb_queue_empty_lockless() in poll() handlers 2019-10-28 13:33:41 -07:00
can net: introduce CAN specific pointer in the struct net_device 2021-04-07 14:47:41 +02:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2020-11-05 11:43:34 +01:00
core bpf: Remove MTU check in __bpf_skb_max_len 2021-04-07 14:47:41 +02:00
dcb net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands 2021-01-23 15:57:59 +01:00
dccp ipv6: weaken the v4mapped source check 2021-04-07 14:47:38 +02:00
decnet net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2020-01-04 19:18:58 +01:00
dns_resolver KEYS: Don't write out to userspace while holding key semaphore 2020-04-23 10:36:45 +02:00
dsa net: dsa: tag_mtk: fix 802.1ad VLAN egress 2021-03-20 10:39:47 +01:00
ethernet net: add annotations on hh->hh_len lockless accesses 2020-01-09 10:20:06 +01:00
hsr net: hsr: Reset MAC header for Tx path 2021-04-14 08:24:12 +02:00
ieee802154 nl802154: add missing attribute validation for dev_type 2020-03-18 07:17:44 +01:00
ife
ipv4 Revert "netfilter: x_tables: Update remaining dereference to RCU" 2021-03-30 14:35:28 +02:00
ipv6 net: ipv6: check for validity before dereferencing cfg->fc_nlinfo.nlh 2021-04-14 08:24:10 +02:00
iucv net/af_iucv: remove WARN_ONCE on malformed RX packets 2021-03-07 12:20:42 +01:00
kcm
key af_key: relax availability checks for skb size calculation 2021-02-13 13:52:54 +01:00
l2tp l2tp: remove skb_dst_set() from l2tp_xmit_skb() 2020-07-22 09:32:47 +02:00
l3mdev
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:25:28 +01:00
llc net: silence data-races on sk_backlog.tail 2020-10-01 13:17:15 +02:00
mac80211 mac80211: fix TXQ AC confusion 2021-04-14 08:24:12 +02:00
mac802154 mac802154: tx: fix use-after-free 2020-10-01 13:18:17 +02:00
mpls net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-17 17:03:31 +01:00
ncsi net/ncsi: Use real net-device for response handler 2021-01-12 20:16:13 +01:00
netfilter netfilter: conntrack: Fix gre tunneling over ipv6 2021-04-10 13:34:31 +02:00
netlabel cipso,calipso: resolve a number of problems with the DOI refcounts 2021-03-17 17:03:35 +01:00
netlink genetlink: remove genl_bind 2020-07-22 09:32:46 +02:00
netrom net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node 2020-04-29 16:33:08 +02:00
nfc nfc: Avoid endless loops caused by repeated llcp_sock_connect() 2021-04-14 08:24:10 +02:00
nsh
openvswitch net: openvswitch: ensure LSE is pullable before reading it 2020-12-08 10:40:27 +01:00
packet net/packet: fix overflow in tpacket_rcv 2020-09-09 19:12:29 +02:00
phonet net: use skb_queue_empty_lockless() in poll() handlers 2019-10-28 13:33:41 -07:00
psample net: psample: fix skb_over_panic 2019-12-04 22:30:54 +01:00
qrtr net: qrtr: fix a kernel-infoleak in qrtr_recvmsg() 2021-03-30 14:35:29 +02:00
rds net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS 2021-02-17 10:35:19 +01:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2020-11-24 13:29:05 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-12-08 10:40:23 +01:00
rxrpc rxrpc: Fix clearance of Tx/Rx ring when releasing a call 2021-02-17 10:35:18 +01:00
sched net: sched: sch_teql: fix null-pointer dereference 2021-04-14 08:24:12 +02:00
sctp net: fix iteration for sctp transport seq_files 2021-02-17 10:35:19 +01:00
smc net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid() 2020-11-24 13:28:58 +01:00
strparser
sunrpc rpc: fix NULL dereference on kmalloc failure 2021-04-07 14:47:38 +02:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:35:46 +01:00
tipc tipc: fix NULL deref in tipc_link_xmit() 2021-01-23 15:58:00 +01:00
tls net/tls: Protect from calling tls_dev_del for TLS RX twice 2020-12-08 10:40:23 +01:00
unix skbuff: fix a data race in skb_queue_len() 2020-10-01 13:17:31 +02:00
vmw_vsock selinux: vsock: Set SID for socket returned by accept() 2021-04-07 14:47:37 +02:00
wimax
wireless wext: fix NULL-ptr-dereference with cfg80211's lack of commit() 2021-02-03 23:25:56 +01:00
x25 net/x25: prevent a couple of overflows 2020-12-08 10:40:26 +01:00
xdp xsk: Replace datagram_poll by sock_poll_wait 2020-12-30 11:50:53 +01:00
xfrm xfrm: interface: use icmp_ndo_send helper 2021-03-04 10:26:53 +01:00
compat.c net/compat: Add missing sock updates for SCM_RIGHTS 2020-08-21 13:05:25 +02:00
Kconfig net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build 2020-04-01 11:02:18 +02:00
Makefile
socket.c net: Set fput_needed iff FDPUT_FPUT is set 2020-08-19 08:16:22 +02:00
sysctl_net.c