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ffb2bd7ade
linux/net
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Zhiling Zou ffb2bd7ade sctp: close UDP tunnel sockets during netns teardown 
proc_sctp_do_udp_port() starts per-net SCTP UDP tunneling sockets when
net.sctp.udp_port is set, and stops/restarts them when the sysctl value
changes. The netns exit path does not stop these sockets, so a namespace
can be torn down while its SCTP UDP tunnel sockets are still installed.

Close the UDP tunnel sockets from sctp_ctrlsock_exit() after unregistering
the per-net sysctl table. This prevents new sysctl writes from racing in
while the sockets are being released, and closes the sockets before the
control socket is destroyed.

Fixes: 046c052b47 ("sctp: enable udp tunneling socks")
Cc: stable@vger.kernel.org
Reported-by: Sashiko <sashiko-bot@kernel.org>
Closes: https://sashiko.dev/#/patchset/b9f1f02b0780ad6a719e2413f5f0bb8eb7702d94.1782585631.git.roxy520tt%40gmail.com
Signed-off-by: Zhiling Zou <roxy520tt@gmail.com>
Signed-off-by: Ren Wei <n05ec@lzu.edu.cn>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://patch.msgid.link/6dab75f22855cb219e2e30a5497cab03b970ab91.1784033357.git.roxy520tt@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 14:03:32 -07:00
..
6lowpan 6lowpan: fix NHC entry use-after-free on error path 2026-06-11 15:27:07 -07:00
9p 9p: Add missing read barrier in virtio zero-copy path 2026-06-21 05:22:57 +00:00
802 appletalk: move the protocol out of tree 2026-06-16 14:37:06 -07:00
8021q vlan: defer real device state propagation to netdev_work 2026-06-25 10:18:40 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-16 14:59:58 -07:00
batman-adv batman-adv: dat: fix tie-break for candidate selection 2026-07-06 07:18:59 +02:00
bluetooth Bluetooth: mgmt: Translate HCI reason in Device Disconnected event 2026-07-13 10:10:13 -04:00
bpf bpf: Fix partial copy of non-linear test_run output 2026-06-21 17:55:06 -07:00
bridge netfilter: ebtables: module names must be null-terminated 2026-07-08 15:22:03 +02:00
can can: isotp: serialize TX state transitions under so->rx_lock 2026-07-16 10:11:12 +02:00
ceph libceph: Fix potential null-ptr-deref in decode_choose_args() 2026-05-12 21:00:59 +02:00
core net: Call net_enable_timestamp() before failure in sk_clone(). 2026-07-21 09:14:59 -07:00
dcb
devlink devlink: Fix parent ref leak on tc-bw failure 2026-06-18 18:02:29 -07:00
dns_resolver net/dns_resolver: use kasprintf + kmemdup_nul to simplify dns_query 2026-06-04 18:39:29 -07:00
dsa net: dsa: Fix skb ownership in taggers 2026-06-27 15:44:12 -07:00
ethernet bonding: prevent potential infinite loop in bond_header_parse() 2026-03-16 19:29:45 -07:00
ethtool ethtool: rss: Fix hfunc and input_xfrm parsing on big endian 2026-07-09 11:38:30 +02:00
handshake handshake: Require admin permission for DONE command 2026-06-12 15:45:44 -07:00
hsr net: hsr: simplify fill_last_seq_nrs() 2026-06-12 16:20:28 -07:00
ieee802154 ieee802154: allow legacy LLSEC ADD/DEL ops to pass strict validation 2026-06-19 23:02:42 +02:00
ife net: ife: require ETH_HLEN to be pullable in ife_decode() 2026-06-13 17:34:39 -07:00
ipv4 tcp: fix TIME_WAIT socket reference leak on PSP policy failure 2026-07-17 11:53:55 +02:00
ipv6 tcp: fix TIME_WAIT socket reference leak on PSP policy failure 2026-07-17 11:53:55 +02:00
iucv net/af_iucv: fix NULL deref in afiucv_hs_callback_syn() 2026-07-21 13:36:35 -07:00
kcm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-16 14:59:58 -07:00
key ipsec-2026-06-22 2026-06-23 16:22:24 -07:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-04 15:29:04 -07:00
l3mdev
lapb
llc llc: fix SAP refcount leak when creating incoming sockets 2026-07-17 13:17:46 +02:00
mac80211 wifi: mac80211: ibss: wait for in-flight TX on disconnect 2026-07-07 09:28:55 +02:00
mac802154 mac802154: remove interfaces with RCU list deletion 2026-07-03 16:14:23 +02:00
mctp mctp: convert to getsockopt_iter 2026-05-10 10:11:07 -07:00
mpls mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n 2026-07-17 13:20:38 +02:00
mptcp mptcp: only set DATA_FIN when a mapping is present 2026-07-21 11:10:39 -07:00
ncsi net: ncsi: fix skb leak in error paths 2026-03-06 17:34:48 -08:00
netfilter netfilter: xt_physdev: masks are not c-strings 2026-07-10 16:28:47 +02:00
netlabel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-11 14:33:35 -07:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-05-28 14:02:21 -07:00
nfc nfc: nci: uart: Constify struct tty_ldisc_ops 2026-06-11 20:21:32 +02:00
nsh
openvswitch openvswitch: fix GSO userspace truncation underflow 2026-07-21 10:25:25 +02:00
packet net/packet: avoid fanout hook re-registration after unregister 2026-07-20 18:15:20 -07:00
phonet net: phonet: free phonet_device after RCU grace period 2026-06-08 17:37:07 -07:00
psample net: psample: fix info leak in PSAMPLE_ATTR_DATA 2026-06-17 16:35:50 -07:00
psp psp: add a new netdev event for dev unregister 2026-06-12 18:31:32 -07:00
qrtr Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
rds rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled 2026-07-21 12:15:13 -07:00
rfkill Replace <linux/mod_devicetable.h> by more specific <linux/device-id/*.h> (c files) 2026-07-03 07:38:17 +02:00
rxrpc rxrpc: fix io_thread race in rxrpc_wake_up_io_thread() 2026-07-21 11:52:29 +02:00
sched net/sched: Handle TC_ACT_REDIRECT from qdisc filter chains 2026-07-20 18:16:43 -07:00
sctp sctp: close UDP tunnel sockets during netns teardown 2026-07-21 14:03:32 -07:00
shaper net: shaper: add a note that we expect cap dumps to be tiny 2026-06-11 12:55:23 +02:00
smc net/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket 2026-07-06 12:58:12 +02:00
strparser net: strparser: fix skb_head leak in strp_abort_strp() 2026-04-14 12:37:00 +02:00
sunrpc SUNRPC: pin upper rpc_clnt across the TLS connect_worker 2026-07-08 14:07:19 -04:00
switchdev bridge: No DEV_PATH_BR_VLAN_UNTAG_HW for dsa foreign 2026-03-19 13:14:00 +01:00
tipc tipc: serialize udp bearer replicast list updates 2026-07-21 11:57:21 -07:00
tls net/tls: Consume empty data records in tls_sw_read_sock() 2026-07-07 10:12:11 +02:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-04 15:29:04 -07:00
vmw_vsock vsock/virtio: collapse receive queue under memory pressure 2026-07-21 12:11:06 +02:00
wireless wifi: cfg80211: bound element ID read when checking non-inheritance 2026-07-07 14:00:35 +02:00
x25 x25: convert to getsockopt_iter 2026-05-10 10:11:08 -07:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-04 15:29:04 -07:00
xfrm xfrm: policy: preallocate inexact bins before xfrm_hash_rebuild reinsert 2026-07-06 08:30:02 +02:00
compat.c net: Remove support for AIO on sockets 2026-05-29 14:05:30 +08:00
devres.c
Kconfig appletalk: move the protocol out of tree 2026-06-16 14:37:06 -07:00
Kconfig.debug
Makefile appletalk: move the protocol out of tree 2026-06-16 14:37:06 -07:00
socket.c Networking changes for 7.2. 2026-06-17 08:17:00 +01:00
sysctl_net.c