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mirror-linux/net/ipv6
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Fernando Fernandez Mancera 072aa0f5c3 Revert "ipv6: preserve insertion order for same-scope addresses" 
Chris Adams reported that preserving insertion order for same-scope
addresses is causing SSH connections to be dropped after stopping a VM
while running NetworkManager.

NetworkManager caches the IPv6 address configuration, when a RA arrives,
it determines the list of addresses to configure and checks if the
addresses are already in the right order in the kernel. If they aren't,
NetworkManager removes and re-adds them to achieve the desired order.

As the order changes, NetworkManager is confused and reconfigures the
addresses on every update. In addition, this would also affect to cloud
tooling that relies on IPv6 addresses order to identify primary and
secondaries addresses.

This reverts commit cb3de96eea.

Fixes: cb3de96eea ("ipv6: preserve insertion order for same-scope addresses")
Reported-by: Chris Adams <linux@cmadams.net>
Closes: https://lore.kernel.org/netdev/20260521135310.GC977@cmadams.net/
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Link: https://patch.msgid.link/20260529112357.5079-1-fmancera@suse.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2026-05-29 13:00:54 -07:00
..
ila net: Add SPDX ids to some source files 2026-03-09 18:32:45 -07:00
netfilter netfilter: nft_fib_ipv6: handle routes via external nexthop 2026-05-22 12:28:46 +02:00
Kconfig ipv6: default IPV6_SIT to m 2026-05-05 17:31:51 -07:00
Makefile ipv6: Retire UDP-Lite. 2026-03-13 18:57:44 -07:00
addrconf.c Revert "ipv6: preserve insertion order for same-scope addresses" 2026-05-29 13:00:54 -07:00
addrconf_core.c ipv6: remove ipv6_stub infrastructure completely 2026-03-29 11:21:24 -07:00
addrlabel.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
af_inet6.c tcp: update window_clamp when SO_RCVBUF is set 2026-04-13 15:32:35 +02:00
ah6.c xfrm: ah: use skb_to_full_sk in async output callbacks 2026-05-16 10:56:14 +02:00
anycast.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
calipso.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
datagram.c ipv6: validate extension header length before copying to cmsg 2026-05-26 18:53:10 -07:00
esp6.c Revert "esp: fix page frag reference leak on skb_to_sgvec failure" 2026-05-29 10:23:25 +02:00
esp6_offload.c xfrm: Fix inner mode lookup in tunnel mode GSO segmentation 2025-12-04 09:54:53 +01:00
exthdrs.c ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() 2026-05-27 19:05:53 -07:00
exthdrs_core.c ipv6: Implement limits on extension header parsing 2026-04-30 17:21:45 -07:00
exthdrs_offload.c
…
fib6_notifier.c net: Add SPDX ids to some source files 2026-03-09 18:32:45 -07:00
fib6_rules.c ipv6: export fib6_lookup for nft_fib_ipv6 2026-03-04 11:45:44 +01:00
fou6.c fou: Remove IPPROTO_UDPLITE check in gue_err() and gue6_err(). 2026-03-17 16:10:59 -07:00
icmp.c ipv6: fix possible UAF in icmpv6_rcv() 2026-04-18 12:09:52 -07:00
inet6_connection_sock.c tcp: move inet6_csk_update_pmtu() to tcp_ipv6.c 2026-02-24 17:47:27 -08:00
inet6_hashtables.c tcp: use __jhash_final() in inet6_ehashfn() 2026-03-29 11:45:48 -07:00
ioam6.c net: ioam6: fix OOB and missing lock 2026-04-08 19:08:56 -07:00
ioam6_iptunnel.c ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data() 2026-02-13 12:24:05 -08:00
ip6_checksum.c udp: Remove UDPLITE_SEND_CSCOV and UDPLITE_RECV_CSCOV. 2026-03-13 18:57:45 -07:00
ip6_fib.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
ip6_flowlabel.c ipv6: flowlabel: enforce per-netns limit for unprivileged callers 2026-05-08 14:59:14 -07:00
ip6_gre.c ip6_gre: Use cached t->net in ip6erspan_changelink(). 2026-05-02 10:36:21 -07:00
ip6_icmp.c ipv6: remove dynamic ICMPv6 sender registration infrastructure 2026-03-29 11:21:23 -07:00
ip6_input.c ipv6: Implement limits on extension header parsing 2026-04-30 17:21:45 -07:00
ip6_offload.c ipv6: replace IS_BUILTIN(CONFIG_IPV6) with IS_ENABLED(CONFIG_IPV6) 2026-03-29 11:21:23 -07:00
ip6_offload.h
…
ip6_output.c ipv6: fix potential UAF caused by ip6_forward_proxy_check() 2026-05-06 17:29:23 -07:00
ip6_tunnel.c ipv6: Implement limits on extension header parsing 2026-04-30 17:21:45 -07:00
ip6_udp_tunnel.c ipv6: remove ipv6_stub infrastructure completely 2026-03-29 11:21:24 -07:00
ip6_vti.c ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate(). 2026-05-26 11:16:12 +02:00
ip6mr.c ipmr/ip6mr: Convert net->ipv[46].ipmr_seq to atomic_t. 2026-03-02 18:49:41 -08:00
ipcomp6.c xfrm: delete x->tunnel as we delete x 2025-07-08 13:28:27 +02:00
ipv6_sockglue.c ipv6: Remove UDP-Lite support for IPV6_ADDRFORM. 2026-03-13 18:57:44 -07:00
mcast.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
mcast_snoop.c
…
mip6.c
…
ndisc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-04-02 11:03:13 -07:00
netfilter.c netfilter: remove nf_ipv6_ops and use direct function calls 2026-03-29 11:21:24 -07:00
output_core.c ipv6: move ip6_dst_hoplimit() to net/ipv6/ip6_output.c 2026-04-01 18:50:35 -07:00
ping.c net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
proc.c udp: Remove UDP-Lite SNMP stats. 2026-03-13 18:57:44 -07:00
protocol.c
…
raw.c net: change sock_queue_rcv_skb_reason() to return a drop_reason 2026-04-12 14:30:25 -07:00
reassembly.c ipv6: discard fragment queue earlier if there is malformed datagram 2026-02-27 19:08:54 -08:00
route.c ipv6: fix possible infinite loop in fib6_select_path() 2026-05-29 12:41:00 -07:00
rpl.c
…
rpl_iptunnel.c net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels 2026-04-28 11:16:14 +02:00
seg6.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
seg6_hmac.c ipv6: add NULL checks for idev in SRv6 paths 2026-03-18 17:23:43 -07:00
seg6_iptunnel.c net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels 2026-04-28 11:16:14 +02:00
seg6_local.c ipv6: adopt dst_dev() helper 2025-07-02 14:32:30 -07:00
sit.c ipv6: sit: remove redundant ret = 0 assignment 2026-04-09 20:37:40 -07:00
syncookies.c tcp: secure_seq: add back ports to TS offset 2026-03-04 17:44:35 -08:00
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
…
tcp_ipv6.c tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction 2026-05-20 19:14:06 -07:00
tcpv6_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-01-29 17:28:54 -08:00
tunnel6.c
…
udp.c udp: Force compute_score to always inline 2026-04-13 15:44:42 -07:00
udp_offload.c udp: Don't pass udptable to IPv6 socket lookup functions. 2026-03-13 18:57:46 -07:00
xfrm6_input.c xfrm: hold dev ref until after transport_finish NF_HOOK 2026-04-07 10:12:40 +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 xfrm6: fix uninitialized saddr in xfrm6_get_saddr() 2026-02-02 08:03:47 +01:00
xfrm6_protocol.c ipv6: xfrm6: release dst on error in xfrm6_rcv_encap() 2026-04-17 10:40:29 +02:00
xfrm6_state.c
…
xfrm6_tunnel.c xfrm: flush all states in xfrm_state_fini 2025-08-06 09:23:38 +02:00