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0625b3bfbb7f5706d83fa1fd3f8a30a5fded108f
linux/net/ipv6
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Eric Dumazet 2fab94bcf3 ipv6: snmp: do not track per idev ICMP6_MIB_RATELIMITHOST 
Blamed commit added a critical false sharing on a single
atomic_long_t under DOS, like receiving UDP packets
to closed ports.

Per netns ICMP6_MIB_RATELIMITHOST tracking uses per-cpu
storage and is enough, we do not need per-device and slow tracking.

Fixes: d0941130c9 ("icmp: Add counters for rate limits")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Cc: Abhishek Rawal <rawal.abhishek92@gmail.com>
Link: https://patch.msgid.link/20250905165813.1470708-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-08 18:06:20 -07:00
..
ila
ipv6: adopt dst_dev() helper
2025-07-02 14:32:30 -07:00
netfilter
netfilter: nf_reject: remove unneeded exports
2025-09-02 15:28:17 +02:00
addrconf_core.c
ipv6: Ensure natural alignment of const ipv6 loopback and router addresses
2024-01-30 12:43:18 +01:00
addrconf.c
ipv6: Add sanity checks on ipv6_devconf.rpl_seg_enabled
2025-09-02 17:01:14 -07:00
addrlabel.c
net: replace ADDRLABEL with dynamic debug
2025-07-08 15:04:05 +02:00
af_inet6.c
net: annotate races around sk->sk_uid
2025-06-23 17:04:03 -07:00
ah6.c
net: fill in MODULE_DESCRIPTION()s for ipv6 modules
2024-02-09 14:12:01 -08:00
anycast.c
ipv6: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
calipso.c
net: ipv6: Fix spelling mistake
2025-07-02 15:42:29 -07:00
datagram.c
net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers
2025-08-28 13:14:50 +02:00
esp6_offload.c
xfrm: Add an inbound percpu state cache.
2024-10-29 11:56:18 +01:00
esp6.c
tcp: Don't pass hashinfo to socket lookup helpers.
2025-08-25 17:53:35 -07:00
exthdrs_core.c
ipv6: Fix out-of-bounds access in ipv6_find_tlv()
2023-05-24 08:43:39 +01:00
exthdrs_offload.c
net: gso: add HBH extension header offload support
2024-01-05 08:11:49 -08:00
exthdrs.c
ipv6: annotate data-races around devconf->rpl_seg_enabled
2025-09-02 17:01:06 -07:00
fib6_notifier.c
net: do not acquire rtnl in fib_seq_sum()
2024-10-11 15:35:05 -07:00
fib6_rules.c
ipv6: fib_rules: Add DSCP mask matching
2025-02-21 16:08:48 -08:00
fou6.c
net: Add MODULE_DESCRIPTION entries to network modules
2020-06-20 21:33:57 -07:00
icmp.c
ipv6: snmp: do not track per idev ICMP6_MIB_RATELIMITHOST
2025-09-08 18:06:20 -07:00
inet6_connection_sock.c
net: annotate races around sk->sk_uid
2025-06-23 17:04:03 -07:00
inet6_hashtables.c
tcp: Don't pass hashinfo to socket lookup helpers.
2025-08-25 17:53:35 -07:00
ioam6_iptunnel.c
ipv6: adopt dst_dev() helper
2025-07-02 14:32:30 -07:00
ioam6.c
ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers
2025-07-02 14:32:30 -07:00
ip6_checksum.c
net: udp: fix handling of CHECKSUM_COMPLETE packets
2018-10-24 14:18:16 -07:00
ip6_fib.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-07-26 11:49:45 -07:00
ip6_flowlabel.c
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
ip6_gre.c
ipv6: ip6_gre: replace strcpy with strscpy for tunnel name
2025-08-19 18:06:24 -07:00
ip6_icmp.c
icmp: fix icmp_ndo_send address translation for reply direction
2025-09-01 12:54:41 -07:00
ip6_input.c
net: preserve MSG_ZEROCOPY with forwarding
2025-07-02 15:07:16 -07:00
ip6_offload.c
ipv6: reject malicious packets in ipv6_gso_segment()
2025-08-01 14:40:53 -07:00
ip6_offload.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ip6_output.c
ipv6: use RCU in ip6_output()
2025-08-29 19:36:32 -07:00
ip6_tunnel.c
ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers
2025-07-02 14:32:30 -07:00
ip6_udp_tunnel.c
ipv6: adopt dst_dev() helper
2025-07-02 14:32:30 -07:00
ip6_vti.c
ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers
2025-07-02 14:32:30 -07:00
ip6mr.c
ipv6: ip6_mc_input() and ip6_mr_input() cleanups
2025-07-02 14:32:30 -07:00
ipcomp6.c
xfrm: delete x->tunnel as we delete x
2025-07-08 13:28:27 +02:00
ipv6_sockglue.c
ipv6: Remove setsockopt_needs_rtnl().
2025-07-08 18:32:39 -07:00
Kconfig
ipv6: sr: Use HMAC-SHA1 and HMAC-SHA256 library functions
2025-08-26 18:11:29 -07:00
Makefile
net/tcp: Introduce TCP_AO setsockopt()s
2023-10-27 10:35:44 +01:00
mcast_snoop.c
net: bridge: mcast: fix broken length + header check for MRDv6 Adv.
2021-04-27 14:02:06 -07:00
mcast.c
ipv6: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
mip6.c
net: fill in MODULE_DESCRIPTION()s for ipv6 modules
2024-02-09 14:12:01 -08:00
ndisc.c
ipv6: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
netfilter.c
netfilter: Switch to skb_dstref_steal to clear dst_entry
2025-08-19 17:54:19 -07:00
output_core.c
ipv6: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
ping.c
inet: ping: remove ping_hash()
2025-09-01 13:15:14 -07:00
proc.c
ipv6: snmp: do not track per idev ICMP6_MIB_RATELIMITHOST
2025-09-08 18:06:20 -07:00
protocol.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
raw.c
inet: raw: add drop_counters to raw sockets
2025-08-28 13:14:50 +02:00
reassembly.c
ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers
2025-07-02 14:32:30 -07:00
route.c
ipv6: start using dst_dev_rcu()
2025-08-29 19:36:32 -07:00
rpl_iptunnel.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-07-17 11:00:33 -07:00
rpl.c
ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv().
2023-06-19 11:32:58 -07:00
seg6_hmac.c
ipv6: sr: Prepare HMAC key ahead of time
2025-08-26 18:11:29 -07:00
seg6_iptunnel.c
ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers
2025-07-02 14:32:30 -07:00
seg6_local.c
ipv6: adopt dst_dev() helper
2025-07-02 14:32:30 -07:00
seg6.c
ipv6: sr: Use HMAC-SHA1 and HMAC-SHA256 library functions
2025-08-26 18:11:29 -07:00
sit.c
ipv6: sit: Add ipip6_tunnel_dst_find() for cleanup
2025-09-04 10:03:59 +02:00
syncookies.c
net: annotate races around sk->sk_uid
2025-06-23 17:04:03 -07:00
sysctl_net_ipv6.c
sysctl: treewide: constify the ctl_table argument of proc_handlers
2024-07-24 20:59:29 +02:00
tcp_ao.c
net/tcp: Wire up l3index to TCP-AO
2023-10-27 10:35:46 +01:00
tcp_ipv6.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2025-09-04 13:33:00 -07:00
tcpv6_offload.c
tcp: Don't pass hashinfo to socket lookup helpers.
2025-08-25 17:53:35 -07:00
tunnel6.c
net: fill in MODULE_DESCRIPTION()s for ipv6 modules
2024-02-09 14:12:01 -08:00
udp_impl.h
udp: move udp_memory_allocated into net_aligned_data
2025-07-02 14:22:02 -07:00
udp_offload.c
udp_tunnel: create a fastpath GRO lookup.
2025-04-08 18:19:41 -07:00
udp.c
net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers
2025-08-28 13:14:50 +02:00
udplite.c
udp: move udp_memory_allocated into net_aligned_data
2025-07-02 14:22:02 -07:00
xfrm6_input.c
xfrm: Set transport header to fix UDP GRO handling
2025-07-02 09:19:56 +02:00
xfrm6_output.c
ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers
2025-07-02 14:32:30 -07:00
xfrm6_policy.c
xfrm: respect ip protocols rules criteria when performing dst lookups
2024-09-23 07:02:07 +02:00
xfrm6_protocol.c
xfrm: add support for UDPv6 encapsulation of ESP
2020-04-28 11:28:36 +02:00
xfrm6_state.c
xfrm: remove output_finish indirection from xfrm_state_afinfo
2020-05-06 09:40:08 +02:00
xfrm6_tunnel.c
xfrm: flush all states in xfrm_state_fini
2025-08-06 09:23:38 +02:00