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2fcba19caaeb2a33017459d3430f057967bb91b6
linux/net
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Fernando Fernandez Mancera 2fcba19caa netfilter: synproxy: add mutex to guard hook reference counting 
As the synproxy infrastructure register netfilter hooks on-demand when a
user adds the first iptables target or nftables expression, if done
concurrently they can race each other.

Introduce a mutex to serialize the refcount control blocks access from
both frontends. While a per namespace mutex might be more efficient, it
is not needed for target/expression like SYNPROXY.

Fixes: ad49d86e07 ("netfilter: nf_tables: Add synproxy support")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2026-06-01 13:43:53 +02:00
..
6lowpan
…
9p
9p/trans_xen: replace simple_strto* with kstrtouint
2026-04-16 02:57:01 +00:00
802
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
8021q
8021q: delete cleared egress QoS mappings
2026-04-23 12:13:57 +02:00
appletalk
net: appletalk: fix NULL pointer dereference in aarp_send_ddp()
2026-05-18 16:33:34 -07:00
atm
net: atm: fix skb leak in sigd_send() default branch
2026-05-12 18:07:02 -07:00
batman-adv
batman-adv: bla: avoid NULL-ptr deref for claim via dropped interface
2026-05-19 10:43:54 +02:00
bluetooth
Bluetooth: hci_sync: Reset device counters in hci_dev_close_sync()
2026-05-28 08:52:21 -04:00
bpf
bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb
2026-04-12 15:42:57 -07:00
bridge
bridge: Fix sleep in atomic context in sysfs path
2026-05-27 17:23:05 -07:00
can
Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2026-04-14 18:36:10 -07:00
ceph
libceph: Fix potential null-ptr-deref in decode_choose_args()
2026-05-12 21:00:59 +02:00
core
net: skbuff: fix pskb_carve leaking zcopy pages
2026-05-29 12:55:27 -07:00
dcb
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
devlink
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-04-09 13:20:59 -07:00
dns_resolver
net: Add SPDX ids to some source files
2026-03-09 18:32:45 -07:00
dsa
net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops
2026-04-16 19:10:48 -07:00
ethernet
bonding: prevent potential infinite loop in bond_header_parse()
2026-03-16 19:29:45 -07:00
ethtool
ethtool: eeprom: add more safeties to EEPROM Netlink fallback
2026-05-27 17:42:09 -07:00
handshake
net/handshake: Drain pending requests at net namespace exit
2026-05-28 13:35:32 +02:00
hsr
net: hsr: fix potential OOB access in supervision frame handling
2026-05-25 14:18:15 -07:00
ieee802154
net: remove addr_len argument of recvmsg() handlers
2026-03-02 18:17:17 -08:00
ife
…
ipv4
Merge tag 'ipsec-2026-05-29' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
2026-05-29 12:57:23 -07:00
ipv6
netfilter: nft_fib_ipv6: bail out of sibling walk if rt got unlinked
2026-06-01 13:43:52 +02:00
iucv
net/iucv: fix locking in .getsockopt
2026-05-22 17:40:32 -07:00
kcm
kcm: fix zero-frag skb in frag_list on partial sendmsg error
2026-02-23 17:26:55 -08:00
key
xfrm: route MIGRATE notifications to caller's netns
2026-05-07 09:31:10 +02:00
l2tp
l2tp: use refcount_inc_not_zero in l2tp_session_get_by_ifname
2026-05-26 17:35:12 -07:00
l3mdev
…
lapb
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
llc
llc: Return -EINPROGRESS from llc_ui_connect()
2026-04-23 11:40:39 -07:00
mac80211
wifi: mac80211: consume only present negotiated TTLM maps
2026-05-20 11:20:37 +02:00
mac802154
bonding: prevent potential infinite loop in bond_header_parse()
2026-03-16 19:29:45 -07:00
mctp
net: mctp: test: Use dev_direct_xmit for TX to our test device
2026-04-30 13:36:47 -07:00
mpls
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-04-02 11:03:13 -07:00
mptcp
mptcp: update window_clamp on subflows when SO_RCVBUF is set
2026-05-19 15:36:35 +02:00
ncsi
net: ncsi: fix skb leak in error paths
2026-03-06 17:34:48 -08:00
netfilter
netfilter: synproxy: add mutex to guard hook reference counting
2026-06-01 13:43:53 +02:00
netlabel
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
netlink
net: netlink: don't set nsid on local notifications
2026-05-22 17:11:09 -07:00
nfc
nfc: hci: fix out-of-bounds read in HCP header parsing
2026-05-07 12:42:09 +02:00
nsh
…
openvswitch
openvswitch: vport: fix race between linking and the device notifier
2026-05-18 16:38:45 -07:00
packet
net/packet: fix TOCTOU race on mmap'd vnet_hdr in tpacket_snd()
2026-04-22 20:16:34 -07:00
phonet
phonet/pep: disable BH around forwarded sk_receive_skb()
2026-05-21 07:38:21 -07:00
psample
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
psp
psp: strip variable-length PSP header in psp_dev_rcv()
2026-05-04 19:25:14 -07:00
qrtr
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-04-14 12:04:00 -07:00
rds
rds_tcp: close NULL deref window in rds_tcp_set_callbacks
2026-05-14 17:06:59 -07:00
rfkill
net: rfkill: prevent unlimited numbers of rfkill events from being created
2026-04-07 12:35:04 +02:00
rxrpc
rxrpc: Fix RESPONSE packet verification to extract skb to a linear buffer
2026-05-20 16:36:45 -07:00
sched
net/sched: act_mirred: Fix return code in early mirred redirect error paths
2026-05-28 12:26:36 +02:00
sctp
sctp: fix race between sctp_wait_for_connect and peeloff
2026-05-28 16:36:08 -07:00
shaper
net: shaper: rework the VALID marking (again)
2026-05-20 16:34:20 -07:00
smc
net/smc: Do not re-initialize smc hashtables
2026-05-22 17:38:02 -07:00
strparser
net: strparser: fix skb_head leak in strp_abort_strp()
2026-04-14 12:37:00 +02:00
sunrpc
Merge tag 'nfsd-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
2026-05-26 13:49:13 -07:00
switchdev
bridge: No DEV_PATH_BR_VLAN_UNTAG_HW for dsa foreign
2026-03-19 13:14:00 +01:00
tipc
Merge tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2026-04-23 16:50:42 -07:00
tls
tls: Preserve sk_err across recvmsg() when data has been copied
2026-05-14 18:19:44 -07:00
unix
af_unix: Fix UAF read of tail->len in unix_stream_data_wait()
2026-05-19 18:53:56 -07:00
vmw_vsock
vsock/virtio: bind uarg before filling zerocopy skb
2026-05-29 12:38:00 -07:00
wireless
wifi: cfg80211: wext: validate chandef in monitor mode
2026-05-20 11:44:19 +02:00
x25
Merge tag 'vfs-7.1-rc1.kino' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2026-04-13 12:19:01 -07:00
xdp
Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2026-05-09 18:42:54 -07:00
xfrm
xfrm: input: hold netns during deferred transport reinjection
2026-05-26 10:35:30 +02:00
compat.c
socket: Unify getsockname and getpeername implementation
2025-11-26 13:45:23 -07:00
devres.c
…
Kconfig
net: remove ax25 and amateur radio (hamradio) subsystem
2026-04-23 10:24:02 -07:00
Kconfig.debug
…
Makefile
net: remove ax25 and amateur radio (hamradio) subsystem
2026-04-23 10:24:02 -07:00
socket.c
Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2026-04-14 18:36:10 -07:00
sysctl_net.c
…