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Matthieu Baerts (NGI0) 2933b4f8a6 mptcp: sched: check both backup in retrans 
commit 2a1f596ebb23eadc0f9b95a8012e18ef76295fc8 upstream.

The 'mptcp_subflow_context' structure has two items related to the
backup flags:

 - 'backup': the subflow has been marked as backup by the other peer

 - 'request_bkup': the backup flag has been set by the host

Looking only at the 'backup' flag can make sense in some cases, but it
is not the behaviour of the default packet scheduler when selecting
paths.

As explained in the commit b6a66e521a20 ("mptcp: sched: check both
directions for backup"), the packet scheduler should look at both flags,
because that was the behaviour from the beginning: the 'backup' flag was
set by accident instead of the 'request_bkup' one. Now that the latter
has been fixed, get_retrans() needs to be adapted as well.

Fixes: b6a66e521a20 ("mptcp: sched: check both directions for backup")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240826-net-mptcp-close-extra-sf-fin-v1-3-905199fe1172@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:17:44 +02:00
..
6lowpan 6lowpan: iphc: Fix an off-by-one check of array index 2021-09-15 09:50:34 +02:00
9p net/9p: fix uninit-value in p9_client_rpc() 2024-06-16 13:32:34 +02:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2023-01-14 10:16:18 +01:00
8021q vlan: skip nested type that is not IFLA_VLAN_QOS_MAPPING 2024-02-23 08:41:55 +01:00
appletalk appletalk: Fix Use-After-Free in atalk_ioctl 2023-12-20 15:44:29 +01:00
atm atm: Fix Use-After-Free in do_vcc_ioctl 2023-12-20 15:44:28 +01:00
ax25 net: ax25: Fix deadlock caused by skb_recv_datagram in ax25_recvmsg 2022-06-22 14:13:17 +02:00
batman-adv batman-adv: Don't accept TT entries for out-of-spec VIDs 2024-07-05 09:12:54 +02:00
bluetooth Bluetooth: MGMT: Add error handling to pair_device() 2024-09-04 13:17:42 +02:00
bpf bpf: Move skb->len == 0 checks into __bpf_redirect 2023-01-14 10:15:31 +01:00
bpfilter bpfilter: Specify the log level for the kmsg message 2021-07-14 16:56:29 +02:00
bridge net: bridge: fix corrupted ethernet header on multicast-to-unicast 2024-05-17 11:48:07 +02:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:45:11 +01:00
can net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new 2024-07-05 09:12:53 +02:00
ceph libceph: fix race between delayed_work() and ceph_monc_stop() 2024-07-18 13:05:49 +02:00
core net: linkwatch: use system_unbound_wq 2024-08-19 05:41:11 +02:00
dcb net: dcb: choose correct policy to parse DCB_ATTR_BCN 2023-08-11 11:57:50 +02:00
dccp dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2023-11-20 11:06:55 +01:00
decnet Remove DECnet support from kernel 2023-06-21 15:45:38 +02:00
dns_resolver keys, dns: Fix size check of V1 server-list header 2024-01-25 14:37:50 -08:00
dsa net: dsa: tag_sja1105: fix MAC DA patching from meta frames 2023-07-27 08:44:10 +02:00
ethernet ethernet: Add helper for assigning packet type when dest address does not match device address 2024-05-02 16:23:44 +02:00
ethtool ethtool: netlink: do not return SQI value if link is down 2024-07-18 13:05:46 +02:00
hsr hsr: Handle failures in module init 2024-03-26 18:22:03 -04:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-11-03 23:57:51 +09:00
ife net: sched: ife: fix potential use-after-free 2024-01-05 15:12:24 +01:00
ipv4 net: nexthop: Initialize all fields in dumped nexthops 2024-08-19 05:41:04 +02:00
ipv6 ipv6: prevent UAF in ip6_send_skb() 2024-09-04 13:17:41 +02:00
iucv s390/iucv: fix receive buffer virtual vs physical address confusion 2024-09-04 13:17:38 +02:00
kcm kcm: Serialise kcm_sendmsg() for the same socket. 2024-09-04 13:17:40 +02:00
key net: af_key: fix sadb_x_filter validation 2023-08-26 15:26:51 +02:00
l2tp l2tp: fix lockdep splat 2024-08-19 05:41:11 +02:00
l3mdev l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu 2022-04-27 13:53:50 +02:00
lapb net: lapb: Copy the skb before sending a packet 2021-02-10 09:29:14 +01:00
llc llc: call sock_orphan() at release time 2024-02-23 08:42:17 +01:00
mac80211 wifi: mac80211: fix BA session teardown race 2024-09-04 13:17:33 +02:00
mac802154 net: mac802154: Fix racy device stats updates by DEV_STATS_INC() and DEV_STATS_ADD() 2024-07-27 10:40:21 +02:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:55:58 +01:00
mptcp mptcp: sched: check both backup in retrans 2024-09-04 13:17:44 +02:00
ncsi net/ncsi: Fix the multi thread manner of NCSI driver 2024-07-05 09:12:22 +02:00
netfilter netfilter: nft_counter: Synchronize nft_counter_reset() against reader. 2024-09-04 13:17:40 +02:00
netlabel calipso: fix memory leak in netlbl_calipso_add_pass() 2024-01-25 14:37:40 -08:00
netlink netlink: hold nlk->cb_mutex longer in __netlink_dump_start() 2024-09-04 13:17:36 +02:00
netrom netrom: Fix a memory leak in nr_heartbeat_expiry() 2024-07-05 09:12:37 +02:00
nfc nfc: nci: Fix handling of zero-length payload packets in nci_rx_work() 2024-06-16 13:32:27 +02:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-05-17 11:48:00 +02:00
openvswitch openvswitch: Set the skbuff pkt_type for proper pmtud support. 2024-06-16 13:32:27 +02:00
packet af_packet: Handle outgoing VLAN packets without hardware offloading 2024-08-19 05:40:55 +02:00
phonet phonet: fix rtm_phonet_notify() skb allocation 2024-05-17 11:48:07 +02:00
psample psample: Require 'CAP_NET_ADMIN' when joining "packets" group 2023-12-13 18:27:06 +01:00
qrtr net: qrtr: ns: Fix module refcnt 2024-06-16 13:32:15 +02:00
rds net/rds: fix possible cp null dereference 2024-04-13 12:59:19 +02:00
rfkill net: rfkill: gpio: set GPIO direction 2024-01-05 15:12:28 +01:00
rose net/rose: fix races in rose_kill_by_device() 2024-01-05 15:12:24 +01:00
rxrpc rxrpc: Fix response to PING RESPONSE ACKs to a dead call 2024-02-23 08:42:20 +01:00
sched netem: fix return value if duplicate enqueue fails 2024-09-04 13:17:41 +02:00
sctp sctp: Fix null-ptr-deref in reuseport_add_sock(). 2024-08-19 05:41:11 +02:00
smc net/smc: set rmb's SG_MAX_SINGLE_ALLOC limitation only when CONFIG_ARCH_NO_SG_CHAIN is defined 2024-08-19 05:40:44 +02:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-18 14:04:27 +01:00
sunrpc nfsd: Don't call freezable_schedule_timeout() after each successful page allocation in svc_alloc_arg(). 2024-09-04 13:17:43 +02:00
switchdev net: switchdev: don't set port_obj_info->handled true when -EOPNOTSUPP 2021-02-07 15:37:12 +01:00
tipc tipc: Return non-zero value from tipc_udp_addr2str() on error 2024-08-19 05:41:04 +02:00
tls tls: fix missing memory barrier in tls_init 2024-06-16 13:32:27 +02:00
unix af_unix: Annotate data-race of sk->sk_shutdown in sk_diag_fill(). 2024-07-05 09:12:23 +02:00
vmw_vsock virtio/vsock: fix logic which reduces credit update messages 2024-01-25 14:37:45 -08:00
wimax genetlink: move to smaller ops wherever possible 2020-10-02 19:11:11 -07:00
wireless wifi: cfg80211: restrict NL80211_ATTR_TXQ_QUANTUM values 2024-08-19 05:41:23 +02:00
x25 net/x25: fix incorrect parameter validation in the x25_getsockopt() function 2024-03-26 18:21:54 -04:00
xdp xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING 2024-05-02 16:23:33 +02:00
xfrm net: fix __dst_negative_advice() race 2024-06-16 13:32:36 +02:00
compat.c net: Return the correct errno code 2021-06-18 10:00:06 +02:00
devres.c
Kconfig Remove DECnet support from kernel 2023-06-21 15:45:38 +02:00
Makefile Remove DECnet support from kernel 2023-06-21 15:45:38 +02:00
socket.c net: Save and restore msg_namelen in sock_sendmsg 2024-01-15 18:48:04 +01:00
sysctl_net.c