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David Leadbeater 9a5d7e0acb netfilter: nf_conntrack_irc: Tighten matching on DCC message 
[ Upstream commit e8d5dfd1d8747b56077d02664a8838c71ced948e ]

CTCP messages should only be at the start of an IRC message, not
anywhere within it.

While the helper only decodes packes in the ORIGINAL direction, its
possible to make a client send a CTCP message back by empedding one into
a PING request.  As-is, thats enough to make the helper believe that it
saw a CTCP message.

Fixes: 869f37d8e48f ("[NETFILTER]: nf_conntrack/nf_nat: add IRC helper port")
Signed-off-by: David Leadbeater <dgl@dgl.cx>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-28 11:10:30 +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: Initialize the iounit field during fid creation
2022-08-21 15:16:26 +02:00
802
net/802/garp: fix memleak in garp_request_join()
2021-07-31 08:16:11 +02:00
8021q
net: make free_netdev() more lenient with unregistering devices
2022-07-29 17:19:07 +02:00
appletalk
appletalk: Fix skb allocation size in loopback case
2021-04-07 15:00:08 +02:00
atm
net: atm: fix update of position index in lec_seq_next
2020-10-31 12:26:30 -07:00
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 skb_split skbuffs with frag_list
2022-05-18 10:23:42 +02:00
bluetooth
Bluetooth: L2CAP: Fix build errors in some archs
2022-09-05 10:28:55 +02:00
bpf
bpf: Don't redirect packets with invalid pkt_len
2022-09-05 10:28:56 +02:00
bpfilter
bpfilter: Specify the log level for the kmsg message
2021-07-14 16:56:29 +02:00
bridge
netfilter: br_netfilter: Drop dst references before setting.
2022-09-15 11:32:05 +02:00
caif
net-caif: avoid user-triggerable WARN_ON(1)
2021-09-22 12:27:56 +02:00
can
can: j1939: j1939_session_destroy(): fix memory leak of skbs
2022-08-25 11:38:23 +02:00
ceph
libceph: fix potential use-after-free on linger ping and resends
2022-05-25 09:17:56 +02:00
core
net/core/skbuff: Check the return value of skb_copy_bits()
2022-09-15 11:32:03 +02:00
dcb
net: dcb: disable softirqs in dcbnl_flush_dev()
2022-03-08 19:09:37 +01:00
dccp
dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
2022-08-21 15:15:52 +02:00
decnet
net: Fix data-races around sysctl_[rw]mem(_offset)?.
2022-08-31 17:15:19 +02:00
dns_resolver
docs: networking: convert dns_resolver.txt to ReST
2020-04-28 14:39:46 -07:00
dsa
net: dsa: Add missing of_node_put() in dsa_port_link_register_of
2022-05-09 09:05:02 +02:00
ethernet
net: move devres helpers into a separate source file
2020-05-23 16:56:17 -07:00
ethtool
ethtool: do not perform operations on net devices being unregistered
2021-12-17 10:14:41 +01:00
hsr
net: hsr: fix mac_len checks
2021-06-03 09:00:50 +02:00
ieee802154
net: ieee802154: Return meaningful error codes from the netlink helpers
2022-02-08 18:30:37 +01:00
ife
…
ipv4
tcp: fix early ETIMEDOUT after spurious non-SACK RTO
2022-09-15 11:32:06 +02:00
ipv6
ipv6: sr: fix out-of-bounds read when setting HMAC data.
2022-09-15 11:32:05 +02:00
iucv
net/af_iucv: remove WARN_ONCE on malformed RX packets
2021-03-07 12:34:05 +01:00
kcm
kcm: fix strp_init() order and cleanup
2022-09-08 11:11:37 +02:00
key
af_key: Do not call xfrm_probe_algs in parallel
2022-08-31 17:15:15 +02:00
l2tp
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
2022-06-22 14:13:15 +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: only change llc->dev when bind() succeeds
2022-03-28 09:57:10 +02:00
mac80211
net: Use u64_stats_fetch_begin_irq() for stats fetch.
2022-09-08 11:11:40 +02:00
mac802154
net: mac802154: Fix a condition in the receive path
2022-09-08 11:11:40 +02:00
mpls
net: Use u64_stats_fetch_begin_irq() for stats fetch.
2022-09-08 11:11:40 +02:00
mptcp
net: Fix data-races around sysctl_[rw]mem(_offset)?.
2022-08-31 17:15:19 +02:00
ncsi
net/ncsi: check for error return from call to nla_put_u32
2022-01-05 12:40:32 +01:00
netfilter
netfilter: nf_conntrack_irc: Tighten matching on DCC message
2022-09-28 11:10:30 +02:00
netlabel
netlabel: fix out-of-bounds memory accesses
2022-04-13 21:01:00 +02:00
netlink
net: genl: fix error path memory leak in policy dumping
2022-08-25 11:38:07 +02:00
netrom
netrom: fix api breakage in nr_setsockopt()
2022-01-27 10:54:03 +01:00
nfc
NFC: NULL out the dev->rfkill to prevent UAF
2022-06-09 10:21:01 +02:00
nsh
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
openvswitch
net: openvswitch: fix parsing of nw_proto for IPv6 fragments
2022-06-29 08:59:45 +02:00
packet
net/af_packet: check len when min_header_len equals to 0
2022-09-05 10:28:59 +02:00
phonet
phonet: refcount leak in pep_sock_accep
2022-01-11 15:25:01 +01:00
psample
net: psample: Fix netlink skb length with tunnel info
2021-03-07 12:34:07 +01:00
qrtr
qrtr: Convert qrtr_ports from IDR to XArray
2022-08-25 11:38:23 +02:00
rds
rds: add missing barrier to release_refill
2022-08-25 11:37:49 +02:00
rfkill
rfkill: Fix use-after-free in rfkill_resume()
2020-11-12 09:18:06 +01:00
rose
rose: check NULL rose_loopback_neigh->loopback
2022-08-31 17:15:16 +02:00
rxrpc
rxrpc: Fix calc of resend age
2022-09-23 14:16:59 +02:00
sched
sch_sfb: Also store skb len before calling child enqueue
2022-09-15 11:32:06 +02:00
sctp
sctp: leave the err path free in sctp_stream_init to sctp_stream_free
2022-08-03 12:00:49 +02:00
smc
net/smc: Remove redundant refcount increase
2022-09-08 11:11:37 +02:00
strparser
bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding
2021-11-18 14:04:27 +01:00
sunrpc
SUNRPC: RPC level errors should set task->tk_rpc_status
2022-08-31 17:15:15 +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: fix shift wrapping bug in map_get()
2022-09-15 11:32:05 +02:00
tls
net/tls: Remove the context from the list in tls_device_down
2022-08-03 12:00:46 +02:00
unix
af_unix: Fix a data-race in unix_dgram_peer_wake_me().
2022-06-14 18:32:40 +02:00
vmw_vsock
vsock: Set socket state back to SS_UNCONNECTED in vsock_connect_timeout()
2022-08-25 11:37:59 +02:00
wimax
genetlink: move to smaller ops wherever possible
2020-10-02 19:11:11 -07:00
wireless
wifi: cfg80211: debugfs: fix return type in ht40allow_map_read()
2022-09-08 11:11:36 +02:00
x25
net/x25: Fix null-ptr-deref caused by x25_disconnect
2022-04-08 14:40:30 +02:00
xdp
xsk: Clear page contiguity bit when unmapping pool
2022-07-12 16:32:21 +02:00
xfrm
net: Fix data-races around netdev_max_backlog.
2022-08-31 17:15:19 +02:00
compat.c
net: Return the correct errno code
2021-06-18 10:00:06 +02:00
devres.c
net: devres: rename the release callback of devm_register_netdev()
2020-06-30 15:57:34 -07:00
Kconfig
drop_monitor: Convert to using devlink tracepoint
2020-09-30 18:01:26 -07:00
Makefile
net: move devres helpers into a separate source file
2020-05-23 16:56:17 -07:00
socket.c
net: Fix a data-race around sysctl_somaxconn.
2022-08-31 17:15:21 +02:00
sysctl_net.c
…