MoYuanhao 8aa9d1ff5b tcp: check space before adding MPTCP SYN options ...

commit 06d64ab46f upstream.

Ensure there is enough space before adding MPTCP options in
tcp_syn_options().

Without this check, 'remaining' could underflow, and causes issues. If
there is not enough space, MPTCP should not be used.

Signed-off-by: MoYuanhao <moyuanhao3676@163.com>
Fixes: cec37a6e41 ("mptcp: Handle MP_CAPABLE options for outgoing connections")
Cc: stable@vger.kernel.org
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
[ Matt: Add Fixes, cc Stable, update Description ]
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241209-net-mptcp-check-space-syn-v1-1-2da992bb6f74@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-12-19 18:12:59 +01:00

..

netfilter

netfilter: fib: check correct rtable in vrf setups

2024-10-09 23:30:31 +02:00

af_inet.c

net: inet: do not leave a dangling sk pointer in inet_create()

2024-12-14 20:03:47 +01:00

ah4.c

…

arp.c

…

bpf_tcp_ca.c

bpf: Check unsupported ops from the bpf_struct_ops's cfi_stubs

2024-07-29 12:54:13 -07:00

cipso_ipv4.c

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

datagram.c

…

devinet.c

ipv4: give an IPv4 dev to blackhole_netdev

2024-10-11 15:36:12 -07:00

esp4_offload.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-07-15 13:19:17 -07:00

esp4.c

net: support non paged skb frags

2024-09-11 20:44:31 -07:00

fib_frontend.c

ipv4: Unmask upper DSCP bits in fib_compute_spec_dst()

2024-08-22 16:59:57 -07:00

fib_lookup.h

…

fib_notifier.c

…

fib_rules.c

ipv4: fib_rules: Add DSCP selector support

2024-09-13 21:15:44 -07:00

fib_semantics.c

ipv4: delete redundant judgment statements

2024-08-23 14:27:45 +01:00

fib_trie.c

ipv4: Centralize TOS matching

2024-08-20 14:57:08 +02:00

fou_bpf.c

…

fou_core.c

fou: fix initialization of grc

2024-09-09 17:21:47 -07:00

fou_nl.c

…

fou_nl.h

…

gre_demux.c

…

gre_offload.c

…

icmp.c

net: Fix icmp host relookup triggering ip_rt_bug

2024-12-14 20:03:04 +01:00

igmp.c

…

inet_connection_sock.c

tcp: Fix use-after-free of nreq in reqsk_timer_handler().

2024-12-05 14:02:35 +01:00

inet_diag.c

tcp: remove volatile qualifier on tw_substate

2024-08-28 17:08:16 -07:00

inet_fragment.c

…

inet_hashtables.c

inet: constify 'struct net' parameter of various lookup helpers

2024-08-05 16:22:45 -07:00

inet_timewait_sock.c

tcp: move inet_twsk_schedule helper out of header

2024-06-10 11:54:18 +01:00

inetpeer.c

…

ip_forward.c

…

ip_fragment.c

…

ip_gre.c

ipv4: ip_gre: Fix drops of small packets in ipgre_xmit

2024-10-01 13:04:03 +02:00

ip_input.c

net/ipv4: make use of the helper macro LIST_HEAD()

2024-09-06 18:10:21 -07:00

ip_options.c

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

ip_output.c

ipv4: Unmask upper DSCP bits in __ip_queue_xmit()

2024-09-04 16:57:11 -07:00

ip_sockglue.c

…

ip_tunnel_core.c

…

ip_tunnel.c

ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()

2024-10-29 11:12:53 -07:00

ip_vti.c

netdev_features: convert NETIF_F_LLTX to dev->lltx

2024-09-03 11:36:43 +02:00

ipcomp.c

…

ipconfig.c

…

ipip.c

netdev_features: convert NETIF_F_LLTX to dev->lltx

2024-09-03 11:36:43 +02:00

ipmr_base.c

ipmr: Fix access to mfc_cache_list without lock held

2024-11-13 19:09:42 -08:00

ipmr.c

ipmr: fix tables suspicious RCU usage

2024-12-05 14:02:35 +01:00

Kconfig

net/tcp: Expand goo.gl link

2024-07-30 18:35:12 -07:00

Makefile

…

metrics.c

…

netfilter.c

ipv4: netfilter: Unmask upper DSCP bits in ip_route_me_harder()

2024-09-09 14:14:53 +01:00

netlink.c

…

nexthop.c

net: nexthop: delete redundant judgment statements

2024-08-23 14:27:45 +01:00

ping.c

ping: use sk_skb_reason_drop to free rx packets

2024-06-19 12:44:22 +01:00

proc.c

minmax: add a few more MIN_T/MAX_T users

2024-07-28 13:41:14 -07:00

protocol.c

…

raw_diag.c

…

raw.c

net: raw: use sk_skb_reason_drop to free rx packets

2024-06-19 12:44:22 +01:00

route.c

ipv4: Unmask upper DSCP bits when building flow key

2024-08-31 17:44:51 +01:00

syncookies.c

tcp: use sk_skb_reason_drop to free rx packets

2024-06-19 12:44:22 +01:00

sysctl_net_ipv4.c

icmp: icmp_msgs_per_sec and icmp_msgs_burst sysctls become per netns

2024-08-30 11:14:06 -07:00

tcp_ao.c

net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals

2024-12-14 20:03:53 +01:00

tcp_bbr.c

…

tcp_bic.c

…

tcp_bpf.c

tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg

2024-12-14 20:03:14 +01:00

tcp_cdg.c

…

tcp_cong.c

tcp: Replace strncpy() with strscpy()

2024-07-16 07:52:15 -07:00

tcp_cubic.c

…

tcp_dctcp.c

…

tcp_dctcp.h

…

tcp_diag.c

…

tcp_fastopen.c

…

tcp_highspeed.c

…

tcp_htcp.c

tcp: Use clamp() in htcp_alpha_update()

2024-08-06 12:16:25 -07:00

tcp_hybla.c

…

tcp_illinois.c

…

tcp_input.c

tcp: fix TFO SYN_RECV to not zero retrans_stamp with retransmits out

2024-10-03 16:18:04 -07:00

tcp_ipv4.c

net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals

2024-12-14 20:03:53 +01:00

tcp_lp.c

…

tcp_metrics.c

tcp_metrics: use netlink policy for IPv6 addr len validation

2024-08-19 17:42:57 -07:00

tcp_minisocks.c

tcp: RX path for devmem TCP

2024-09-11 20:44:32 -07:00

tcp_nv.c

…

tcp_offload.c

net: gso: fix tcp fraglist segmentation after pull from frag_list

2024-10-02 17:21:47 -07:00

tcp_output.c

tcp: check space before adding MPTCP SYN options

2024-12-19 18:12:59 +01:00

tcp_plb.c

…

tcp_rate.c

…

tcp_recovery.c

…

tcp_scalable.c

…

tcp_sigpool.c

net/tcp_sigpool: Use nested-BH locking for sigpool_scratch.

2024-06-24 16:41:22 -07:00

tcp_timer.c

mptcp: fallback to TCP after SYN+MPC drops

2024-09-11 15:57:50 -07:00

tcp_ulp.c

…

tcp_vegas.c

…

tcp_vegas.h

…

tcp_veno.c

…

tcp_westwood.c

…

tcp_yeah.c

…

tcp.c

tcp: RX path for devmem TCP

2024-09-11 20:44:32 -07:00

tunnel4.c

…

udp_bpf.c

…

udp_diag.c

…

udp_impl.h

…

udp_offload.c

gso: fix udp gso fraglist segmentation after pull from frag_list

2024-10-02 17:29:31 -07:00

udp_tunnel_core.c

ipv4: udp_tunnel: Unmask upper DSCP bits in udp_tunnel_dst_lookup()

2024-09-09 14:14:53 +01:00

udp_tunnel_nic.c

…

udp_tunnel_stub.c

…

udp.c

Revert "udp: avoid calling sock_def_readable() if possible"

2024-12-14 20:03:07 +01:00

udplite.c

…

xfrm4_input.c

…

xfrm4_output.c

…

xfrm4_policy.c

xfrm: respect ip protocols rules criteria when performing dst lookups

2024-09-23 07:02:07 +02:00

xfrm4_protocol.c

…

xfrm4_state.c

…

xfrm4_tunnel.c

…