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Xin Long 0392c9185d sctp: fix an issue that plpmtu can never go to complete state 
commit 6ca328e985cd995dfd1d5de44046e6074f853fbb upstream.

When doing plpmtu probe, the probe size is growing every time when it
receives the ACK during the Search state until the probe fails. When
the failure occurs, pl.probe_high is set and it goes to the Complete
state.

However, if the link pmtu is huge, like 65535 in loopback_dev, the probe
eventually keeps using SCTP_MAX_PLPMTU as the probe size and never fails.
Because of that, pl.probe_high can not be set, and the plpmtu probe can
never go to the Complete state.

Fix it by setting pl.probe_high to SCTP_MAX_PLPMTU when the probe size
grows to SCTP_MAX_PLPMTU in sctp_transport_pl_recv(). Also, not allow
the probe size greater than SCTP_MAX_PLPMTU in the Complete state.

Fixes: b87641aff9 ("sctp: do state transition when a probe succeeds on HB ACK recv path")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-30 14:03:32 +01:00
..
6lowpan
9p 9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition 2023-04-20 12:35:08 +02:00
802 mrp: introduce active flags to prevent UAF when applicant uninit 2022-12-31 13:33:02 +01:00
8021q vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit() 2023-05-24 17:32:47 +01:00
appletalk
atm net/atm: fix proc_mpc_write incorrect return value 2022-10-15 11:08:36 +01:00
ax25
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-09-22 13:02:10 -07:00
bluetooth Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp 2023-05-24 17:32:40 +01:00
bpf Revert "bpf, test_run: fix &xdp_frame misplacement for LIVE_FRAMES" 2023-03-17 08:50:32 +01:00
bpfilter
bridge bridge: always declare tunnel functions 2023-05-24 17:32:48 +01:00
caif net: caif: Fix use-after-free in cfusbl_device_notify() 2023-03-17 08:50:24 +01:00
can can: isotp: recvmsg(): allow MSG_CMSG_COMPAT flag 2023-05-24 17:32:49 +01:00
ceph use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
core net: fix skb leak in __skb_tstamp_tx() 2023-05-30 14:03:20 +01:00
dcb
dccp netfilter: keep conntrack reference until IPsecv6 policy checks are done 2023-05-11 23:03:18 +09:00
dns_resolver
dsa net: dsa: tag_brcm: legacy: fix daisy-chained switches 2023-03-30 12:49:09 +02:00
ethernet net: gro: skb_gro_header helper function 2022-08-25 10:33:21 +02:00
ethtool ethtool: Fix uninitialized number of lanes 2023-05-17 11:53:37 +02:00
hsr hsr: ratelimit only when errors are printed 2023-04-06 12:10:58 +02:00
ieee802154 net: ieee802154: fix error return code in dgram_bind() 2022-10-07 09:29:17 +02:00
ife
ipv4 udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). 2023-05-30 14:03:20 +01:00
ipv6 ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-30 14:03:21 +01:00
iucv net/iucv: Fix size of interrupt data 2023-03-22 13:33:50 +01:00
kcm kcm: close race conditions on sk_receive_queue 2022-11-15 12:42:26 +01:00
key af_key: Reject optional tunnel/BEET mode templates in outbound policies 2023-05-24 17:32:43 +01:00
l2tp inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy(). 2023-04-26 14:28:43 +02:00
l3mdev
lapb
llc net: deal with most data-races in sk_wait_event() 2023-05-24 17:32:32 +01:00
mac80211 wifi: mac80211: Abort running color change when stopping the AP 2023-05-24 17:32:46 +01:00
mac802154 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() 2022-12-05 09:53:08 +01:00
mctp net: mctp: purge receive queues on sk destruction 2023-02-06 08:06:34 +01:00
mpls net: mpls: fix stale pointer if allocation fails during device rename 2023-02-22 12:59:53 +01:00
mptcp mptcp: fix accept vs worker race 2023-05-01 08:26:27 +09:00
ncsi net/ncsi: clear Tx enable mode when handling a Config required AEN 2023-05-17 11:53:32 +02:00
netfilter netfilter: nft_set_rbtree: fix null deref on element insertion 2023-05-24 17:32:48 +01:00
netlabel genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
netlink netlink: annotate accesses to nlk->cb_running 2023-05-24 17:32:32 +01:00
netrom netrom: Fix use-after-free caused by accept on already connected socket 2023-02-09 11:28:06 +01:00
nfc nfc: change order inside nfc_se_io error path 2023-03-17 08:50:17 +01:00
nsh net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() 2023-05-24 17:32:45 +01:00
openvswitch net: openvswitch: fix race on port output 2023-04-20 12:35:09 +02:00
packet net: add vlan_get_protocol_and_depth() helper 2023-05-24 17:32:32 +01:00
phonet
psample genetlink: start to validate reserved header bytes 2022-08-29 12:47:15 +01:00
qrtr net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume() 2023-04-20 12:35:09 +02:00
rds rds: rds_rm_zerocopy_callback() correct order for list_add_tail() 2023-03-10 09:33:02 +01:00
rfkill
rose net/rose: Fix to not accept on connected socket 2023-02-22 12:59:42 +01:00
rxrpc rxrpc: Fix hard call timeout units 2023-05-17 11:53:35 +02:00
sched net/sched: act_mirred: Add carrier check 2023-05-17 11:53:34 +02:00
sctp sctp: fix an issue that plpmtu can never go to complete state 2023-05-30 14:03:32 +01:00
smc net: deal with most data-races in sk_wait_event() 2023-05-24 17:32:32 +01:00
strparser
sunrpc SUNRPC: Don't change task->tk_status after the call to rpc_exit_task 2023-05-30 14:03:17 +01:00
switchdev
tipc tipc: check the bearer min mtu properly when setting it by netlink 2023-05-24 17:32:46 +01:00
tls net: deal with most data-races in sk_wait_event() 2023-05-24 17:32:32 +01:00
unix af_unix: Fix data races around sk->sk_shutdown. 2023-05-24 17:32:33 +01:00
vmw_vsock vsock: avoid to close connected socket after the timeout 2023-05-24 17:32:44 +01:00
wireless wifi: cfg80211: Drop entries with invalid BSSIDs in RNR 2023-05-24 17:32:46 +01:00
x25 net/x25: Fix to not accept on connected socket 2023-02-09 11:28:13 +01:00
xdp xsk: Fix unaligned descriptor validation 2023-05-11 23:03:21 +09:00
xfrm xfrm: Reject optional tunnel/BEET mode templates in outbound policies 2023-05-24 17:32:43 +01:00
compat.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
devres.c
Kconfig
Kconfig.debug net: make NET_(DEV|NS)_REFCNT_TRACKER depend on NET 2022-09-20 14:23:56 -07:00
Makefile
socket.c net: annotate sk->sk_err write from do_recvmmsg() 2023-05-24 17:32:32 +01:00
sysctl_net.c