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03deeee9eb9ee50fd9fabf04b7cfbf5281ed521c
linux/net/ipv6
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Eric Dumazet e50f29f40b ipv6: np->rxpmtu race annotation 
[ Upstream commit 9fba1eb39e ]

Add READ_ONCE() annotations because np->rxpmtu can be changed
while udpv6_recvmsg() and rawv6_recvmsg() read it.

Since this is a very rarely used feature, and that udpv6_recvmsg()
and rawv6_recvmsg() read np->rxopt anyway, change the test order
so that np->rxpmtu does not need to be in a hot cache line.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250916160951.541279-4-edumazet@google.com
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-11-13 15:37:26 -05:00
..
ila
ipv6: adopt dst_dev() helper
2025-07-02 14:32:30 -07:00
netfilter
netfilter: nf_reject: don't reply to icmp error messages
2025-11-13 15:37:20 -05:00
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
2025-11-13 15:37:12 -05:00
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: ipv6: fix field-spanning memcpy warning in AH output
2025-11-13 15:37:02 -05:00
anycast.c
ipv6: start using dst_dev_rcu()
2025-10-15 12:03:48 +02:00
calipso.c
net: ipv6: Fix spelling mistake
2025-07-02 15:42:29 -07:00
datagram.c
net: dst: annotate data-races around dst->obsolete
2025-07-02 14:32:29 -07:00
esp6_offload.c
xfrm: Add an inbound percpu state cache.
2024-10-29 11:56:18 +01:00
esp6.c
espintcp: remove encap socket caching to avoid reference leak
2025-04-14 11:59:17 +02:00
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
…
icmp.c
ipv6: snmp: do not track per idev ICMP6_MIB_RATELIMITHOST
2025-10-15 12:03:55 +02:00
inet6_connection_sock.c
net: annotate races around sk->sk_uid
2025-06-23 17:04:03 -07:00
inet6_hashtables.c
inet: call inet6_ehashfn() once from inet6_hash_connect()
2025-03-06 15:26:02 -08:00
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
…
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
ip6_gre: Factor out common ip6gre tunnel match into helper
2025-07-22 12:15:26 +02:00
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
…
ip6_output.c
ipv6: use RCU in ip6_output()
2025-10-15 12:03:49 +02:00
ip6_tunnel.c
net/ip6_tunnel: Prevent perpetual tunnel growth
2025-10-23 16:24:29 +02:00
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
net: ipv6: select DST_CACHE from IPV6_RPL_LWTUNNEL
2024-09-22 19:52:07 +01:00
Makefile
net/tcp: Introduce TCP_AO setsockopt()s
2023-10-27 10:35:44 +01:00
mcast_snoop.c
…
mcast.c
ipv6: start using dst_dev_rcu()
2025-10-15 12:03:48 +02:00
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()
2025-10-15 12:03:48 +02:00
netfilter.c
ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers
2025-07-02 14:32:30 -07:00
output_core.c
ipv6: start using dst_dev_rcu()
2025-10-15 12:03:48 +02:00
ping.c
net: annotate races around sk->sk_uid
2025-06-23 17:04:03 -07:00
proc.c
ipv6: snmp: do not track per idev ICMP6_MIB_RATELIMITHOST
2025-10-15 12:03:55 +02:00
protocol.c
…
raw.c
ipv6: np->rxpmtu race annotation
2025-11-13 15:37:26 -05:00
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()
2025-10-15 12:03:48 +02:00
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: Fix MAC comparison to be constant-time
2025-08-20 19:32:30 -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: restruct ifdefines
2024-05-30 18:29:38 -07:00
sit.c
net: ipv4: Add a flags argument to iptunnel_xmit(), udp_tunnel_xmit_skb()
2025-06-17 18:18:44 -07:00
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
net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6
2025-09-02 15:58:22 -07:00
tcpv6_offload.c
net: use sock_gen_put() when sk_state is TCP_TIME_WAIT
2025-05-01 07:00:19 -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
ipv6: np->rxpmtu race annotation
2025-11-13 15:37:26 -05:00
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
…
xfrm6_state.c
…
xfrm6_tunnel.c
xfrm: flush all states in xfrm_state_fini
2025-08-06 09:23:38 +02:00