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kernel_samsung_a53x/net/ipv4
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MoYuanhao b0777ecd9e tcp: check space before adding MPTCP SYN options 
commit 06d64ab46f19ac12f59a1d2aa8cd196b2e4edb5b 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: cec37a6e41aa ("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>
2025-01-02 17:00:49 +01:00
..
bpfilter Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netfilter Revert "netfilter: nf_tables: prevent nf_skb_duplicated corruption" 2024-11-24 00:23:12 +01:00
af_inet.c net: inet: do not leave a dangling sk pointer in inet_create() 2024-12-17 13:24:30 +01:00
ah4.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
arp.c arp: Prevent overflow in arp_req_get(). 2024-11-18 22:25:42 +01:00
bpf_tcp_ca.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cipso_ipv4.c cipso: fix total option length computation 2024-11-19 14:19:08 +01:00
datagram.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
devinet.c Revert "ipv4: Check !in_dev earlier for ioctl(SIOCSIFADDR)." 2024-11-24 00:23:08 +01:00
esp4.c Revert "net: esp: cleanup esp_output_tail_tcp() in case of unsupported ESPINTCP" 2024-11-24 00:23:57 +01:00
esp4_offload.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_frontend.c Revert "ipv4: Mask upper DSCP bits and ECN bits in NETLINK_FIB_LOOKUP family" 2024-11-24 00:23:08 +01:00
fib_lookup.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_notifier.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_rules.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_semantics.c net: Add l3mdev index to flow struct and avoid oif reset for port devices 2024-11-23 23:21:52 +01:00
fib_trie.c net: Add l3mdev index to flow struct and avoid oif reset for port devices 2024-11-23 23:21:52 +01:00
fou.c Revert "fou: remove sparse errors" 2024-11-24 00:23:41 +01:00
gre_demux.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gre_offload.c Revert "gro: remove rcu_read_lock/rcu_read_unlock from gro_receive handlers" 2024-11-24 00:23:41 +01:00
icmp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
igmp.c bpf: net: Change do_ip_getsockopt() to take the sockptr_t argument 2024-11-19 08:44:49 +01:00
inet_connection_sock.c tcp: properly terminate timers for kernel sockets 2024-11-19 09:22:44 +01:00
inet_diag.c inet_diag: Initialize pad field in struct inet_diag_req_v2 2024-11-19 14:19:41 +01:00
inet_fragment.c Revert "inet: inet_defrag: prevent sk release while still in use" 2024-11-24 00:23:32 +01:00
inet_hashtables.c Revert "net: set SOCK_RCU_FREE before inserting socket into hashtable" 2024-11-24 00:23:47 +01:00
inet_timewait_sock.c tcp: Fix NEW_SYN_RECV handling in inet_twsk_purge() 2024-11-19 11:32:40 +01:00
inetpeer.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip_forward.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip_fragment.c Revert "inet: inet_defrag: prevent sk release while still in use" 2024-11-24 00:23:32 +01:00
ip_gre.c Revert "ipv4: ip_gre: Fix drops of small packets in ipgre_xmit" 2024-11-24 00:23:12 +01:00
ip_input.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip_options.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip_output.c net: ipv4: fix a memleak in ip_setup_cork 2024-11-18 12:13:22 +01:00
ip_sockglue.c bpf: net: Change do_ip_getsockopt() to take the sockptr_t argument 2024-11-19 08:44:49 +01:00
ip_tunnel.c net: Handle l3mdev in ip_tunnel_init_flow 2024-11-23 23:21:53 +01:00
ip_tunnel_core.c tunnels: fix out of bounds access when building IPv6 PMTU error 2024-11-18 12:13:24 +01:00
ip_vti.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipcomp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipconfig.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipip.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipmr.c ipmr: fix tables suspicious RCU usage 2024-12-17 13:24:16 +01:00
ipmr_base.c ipmr: Fix access to mfc_cache_list without lock held 2024-12-17 13:23:58 +01:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
metrics.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netfilter.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netlink.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nexthop.c Revert "net: nexthop: Initialize all fields in dumped nexthops" 2024-11-24 00:23:55 +01:00
ping.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
proc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
protocol.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raw.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raw_diag.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
route.c Revert "ipv4: Fix incorrect source address in Record Route option" 2024-11-24 00:23:56 +01:00
syncookies.c tcp: fix cookie_init_timestamp() overflows 2024-11-18 11:42:50 +01:00
sysctl_net_ipv4.c tcp: add sysctls for TCP PLB parameters 2024-12-18 15:08:12 +01:00
tcp.c Revert "tcp: add rcv_wnd and plb_rehash to TCP_INFO" 2024-12-18 15:32:40 +01:00
tcp_bbr.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_bic.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_bpf.c tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg 2024-12-17 13:24:27 +01:00
tcp_cdg.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_cong.c Revert "net-tcp: add fast_ack_mode=1: skip rwin check in tcp_fast_ack_mode__tcp_ack_snd_check()" 2024-12-18 15:32:27 +01:00
tcp_cubic.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_dctcp.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_dctcp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp_diag.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp_fastopen.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp_highspeed.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_htcp.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_hybla.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_illinois.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_input.c Revert "tcp: tracking packets with CE marks in BW rate sample" 2024-12-18 15:36:41 +01:00
tcp_ipv4.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_lp.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_metrics.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_minisocks.c Revert "tcp: introduce per-route feature RTAX_FEATURE_ECN_LOW" 2024-12-18 15:36:29 +01:00
tcp_nv.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_offload.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp_output.c tcp: check space before adding MPTCP SYN options 2025-01-02 17:00:49 +01:00
tcp_rate.c Revert "tcp: tracking packets with CE marks in BW rate sample" 2024-12-18 15:36:41 +01:00
tcp_recovery.c tcp: fix excessive TLP and RACK timeouts from HZ rounding 2024-11-08 11:26:10 +01:00
tcp_scalable.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_timer.c net-tcp_bbr: broaden app-limited rate sample detection 2024-12-18 15:07:30 +01:00
tcp_ulp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp_vegas.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_vegas.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp_veno.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_westwood.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tcp_yeah.c Revert "tcp: add accessors to read/set tp->snd_cwnd" 2024-12-18 15:30:18 +01:00
tunnel4.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp.c udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port(). 2024-11-19 14:19:43 +01:00
udp_bpf.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_diag.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_impl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_offload.c Revert "fou: remove sparse errors" 2024-11-24 00:23:41 +01:00
udp_tunnel_core.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_tunnel_nic.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_tunnel_stub.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udplite.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm4_input.c xfrm: Preserve vlan tags for transport mode software GRO 2024-11-19 11:32:45 +01:00
xfrm4_output.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm4_policy.c xfrm: respect ip protocols rules criteria when performing dst lookups 2024-11-23 23:22:00 +01:00
xfrm4_protocol.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm4_state.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm4_tunnel.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00