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Paolo Abeni 1502328f17 mptcp: fix bad handling of 32 bit ack wrap-around 
When receiving 32 bits DSS ack from the peer, the MPTCP need
to expand them to 64 bits value. The current code is buggy
WRT detecting 32 bits ack wrap-around: when the wrap-around
happens the current unsigned 32 bit ack value is lower than
the previous one.

Additionally check for possible reverse wrap and make the helper
visible, so that we could re-use it for the next patch.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/204
Fixes: cc9d25669866 ("mptcp: update per unacked sequence on pkt reception")
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-21 14:21:27 -07:00
..
6lowpan
6lowpan: Fix some typos in nhc_udp.c
2021-03-24 17:52:11 -07:00
9p
net: 9p: Correct function names in the kerneldoc comments
2021-03-28 17:56:56 -07:00
802
…
8021q
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2021-04-26 12:00:00 -07:00
appletalk
net: appletalk: fix the usage of preposition
2021-06-08 11:37:41 -07:00
atm
net: atm: pppoatm: use new API for wakeup tasklet
2021-01-29 18:24:05 -08:00
ax25
net/ax25: Delete obsolete TODO file
2021-03-30 16:54:50 -07:00
batman-adv
batman-adv: Avoid WARN_ON timing related checks
2021-05-18 21:10:01 +02:00
bluetooth
Bluetooth: SMP: Fix crash when receiving new connection when debug is enabled
2021-06-14 22:16:27 +02:00
bpf
bpf: selftests: Add kfunc_call test
2021-03-26 20:41:52 -07:00
bpfilter
net: remove redundant 'depends on NET'
2021-01-27 17:04:12 -08:00
bridge
net: bridge: fix vlan tunnel dst refcnt when egressing
2021-06-10 14:06:43 -07:00
caif
net: caif: fix memory leak in cfusbl_device_notify
2021-06-03 15:05:07 -07:00
can
can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done
2021-06-19 23:54:00 +02:00
ceph
Notable items here are a series to take advantage of David Howells'
2021-05-06 10:27:02 -07:00
core
net/netif_receive_skb_core: Use migrate_disable()
2021-06-21 12:08:02 -07:00
dcb
net: dcb: use obj-$(CONFIG_DCB) form in net/Makefile
2021-01-27 17:03:52 -08:00
dccp
net: dccp: use net_generic storage
2021-04-09 16:34:56 -07:00
decnet
net/decnet: Delete obsolete TODO file
2021-03-30 16:54:50 -07:00
dns_resolver
net: remove redundant 'depends on NET'
2021-01-27 17:04:12 -08:00
dsa
net: dsa: tag_8021q: fix the VLAN IDs used for encoding sub-VLANs
2021-06-01 15:02:05 -07:00
ethernet
of: net: pass the dst buffer to of_get_mac_address()
2021-04-13 14:35:02 -07:00
ethtool
ethtool: strset: fix message length calculation
2021-06-14 12:14:24 -07:00
hsr
net: hsr: fix mac_len checks
2021-05-24 14:10:28 -07:00
ieee802154
ieee802154: fix error return code in ieee802154_llsec_getparams()
2021-06-03 10:59:49 +02:00
ife
net: remove redundant 'depends on NET'
2021-01-27 17:04:12 -08:00
ipv4
icmp: don't send out ICMP messages with a source address of 0.0.0.0
2021-06-18 12:13:24 -07:00
ipv6
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2021-06-10 14:33:56 -07:00
iucv
iucv: af_iucv.c: Couple of typo fixes
2021-03-28 17:31:13 -07:00
kcm
revert "net: kcm: fix memory leak in kcm_sendmsg"
2021-06-07 13:34:37 -07:00
key
af_key: relax availability checks for skb size calculation
2021-01-04 10:05:50 +01:00
l2tp
net: fix a concurrency bug in l2tp_tunnel_register()
2021-04-27 14:23:13 -07:00
l3mdev
l3mdev: Correct function names in the kerneldoc comments
2021-03-28 17:56:55 -07:00
lapb
net: lapb: Make "lapb_t1timer_running" able to detect an already running timer
2021-03-23 14:14:50 -07:00
llc
llc2: Remove redundant assignment to rc
2021-04-27 14:16:14 -07:00
mac80211
mac80211: handle various extensible elements correctly
2021-06-18 13:25:49 +02:00
mac802154
net: mac802154: Fix general protection fault
2021-04-06 22:42:16 +02:00
mpls
mpls: Remove redundant assignment to err
2021-04-27 14:17:00 -07:00
mptcp
mptcp: fix bad handling of 32 bit ack wrap-around
2021-06-21 14:21:27 -07:00
ncsi
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2021-04-09 20:48:35 -07:00
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
2021-06-10 14:33:56 -07:00
netlabel
Networking changes for 5.13.
2021-04-29 11:57:23 -07:00
netlink
netlink: disable IRQs for netlink_lock_table()
2021-05-17 15:31:03 -07:00
netrom
net: netrom: nr_in: Remove redundant assignment to ns
2021-04-28 13:59:08 -07:00
nfc
nfc: fix NULL ptr dereference in llcp_sock_getname() after failed connect
2021-05-31 22:43:27 -07:00
nsh
…
openvswitch
openvswitch: meter: fix race when getting now_ms.
2021-05-13 15:54:59 -07:00
packet
net/packet: annotate accesses to po->ifindex
2021-06-16 12:48:18 -07:00
phonet
…
psample
psample: Add additional metadata attributes
2021-03-14 15:00:43 -07:00
qrtr
net: qrtr: fix OOB Read in qrtr_endpoint_post
2021-06-14 13:01:26 -07:00
rds
net: rds: fix memory leak in rds_recvmsg
2021-06-08 16:32:17 -07:00
rfkill
Another set of updates, all over the map:
2021-04-20 16:44:04 -07:00
rose
net: rose: Fix fall-through warnings for Clang
2021-03-10 12:45:15 -08:00
rxrpc
Networking changes for 5.13.
2021-04-29 11:57:23 -07:00
sched
sch_cake: revise docs for RFC 8622 LE PHB support
2021-06-14 12:10:57 -07:00
sctp
sctp: fix the proc_handler for sysctl encap_port
2021-05-25 15:18:29 -07:00
smc
Networking fixes for 5.13-rc4, including fixes from bpf, netfilter,
2021-05-26 17:44:49 -10:00
strparser
…
sunrpc
xprtrdma: Revert 586a0787ce35
2021-05-27 08:46:19 -04:00
switchdev
net: bridge: propagate extack through switchdev_port_attr_set
2021-02-14 17:38:11 -08:00
tipc
tipc: simplify the finalize work queue
2021-05-18 13:22:09 -07:00
tls
tls: prevent oversized sendfile() hangs by ignoring MSG_MORE
2021-06-21 12:39:08 -07:00
unix
net/af_unix: fix a data-race in unix_dgram_sendmsg / unix_release_sock
2021-06-16 12:51:55 -07:00
vmw_vsock
vsock/vmci: Remove redundant assignment to err
2021-04-30 15:00:59 -07:00
wireless
cfg80211: avoid double free of PMSR request
2021-06-18 13:25:24 +02:00
x25
net/x25: Return the correct errno code
2021-06-03 15:13:56 -07:00
xdp
xsk: Fix for xp_aligned_validate_desc() when len == chunk_size
2021-05-04 00:28:06 +02:00
xfrm
xfrm: ipcomp: remove unnecessary get_cpu()
2021-04-19 12:49:29 +02:00
compat.c
net: Return the correct errno code
2021-06-03 15:13:56 -07:00
devres.c
…
Kconfig
bpf, kconfig: Add consolidated menu entry for bpf with core options
2021-05-11 13:56:16 -07:00
Makefile
net: l3mdev: use obj-$(CONFIG_NET_L3_MASTER_DEV) form in net/Makefile
2021-01-27 17:03:52 -08:00
socket.c
net: make get_net_ns return error if NET_NS is disabled
2021-06-12 13:13:08 -07:00
sysctl_net.c
net: Ensure net namespace isolation of sysctls
2021-04-12 13:27:11 -07:00