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linux/net/ipv6
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Xin Long cfe82469a0 ipv6: add exception routes to GC list in rt6_insert_exception 
Commit 5eb902b8e7 ("net/ipv6: Remove expired routes with a separated list
of routes.") introduced a separated list for managing route expiration via
the GC timer.

However, it missed adding exception routes (created by ip6_rt_update_pmtu()
and rt6_do_redirect()) to this GC list. As a result, these exceptions were
never considered for expiration and removal, leading to stale entries
persisting in the routing table.

This patch fixes the issue by calling fib6_add_gc_list() in
rt6_insert_exception(), ensuring that exception routes are properly tracked
and garbage collected when expired.

Fixes: 5eb902b8e7 ("net/ipv6: Remove expired routes with a separated list of routes.")
Reported-by: Jianlin Shi <jishi@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/837e7506ffb63f47faa2b05d9b85481aad28e1a4.1744134377.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-10 20:09:05 -07:00
..
ila net: ipv6: fix missing dst ref drop in ila lwtunnel 2025-03-06 11:08:45 +01:00
netfilter netfilter pull request 25-03-23 2025-03-25 08:29:13 -07:00
addrconf.c Including fixes from netfilter. 2025-04-10 08:52:18 -07:00
addrconf_core.c ipv6: Ensure natural alignment of const ipv6 loopback and router addresses 2024-01-30 12:43:18 +01:00
addrlabel.c ipv6: Use rtnl_register_many(). 2024-10-15 18:52:26 -07:00
af_inet6.c net: inet6: do not leave a dangling sk pointer in inet6_create() 2024-10-15 18:43:08 -07:00
ah6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
anycast.c netlink: add IPv6 anycast join/leave notifications 2025-01-09 12:54:45 +01:00
calipso.c netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets 2025-04-02 16:01:04 -07:00
datagram.c ipv6: annotate data-races around np->ucast_oif 2023-12-11 10:59:17 +00:00
esp6.c ipsec-2025-01-27 2025-01-27 15:15:12 -08:00
esp6_offload.c xfrm: Add an inbound percpu state cache. 2024-10-29 11:56:18 +01:00
exthdrs.c net: use sock_kmemdup for ip_options 2025-03-03 17:16:34 -08:00
exthdrs_core.c
exthdrs_offload.c net: gso: add HBH extension header offload support 2024-01-05 08:11:49 -08:00
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 inet: ping: avoid skb_clone() dance in ping_rcv() 2025-02-28 14:41:33 -08:00
inet6_connection_sock.c tcp/dccp: Remove inet_connection_sock_af_ops.addr2sockaddr(). 2025-03-24 12:10:13 -07:00
inet6_hashtables.c inet: call inet6_ehashfn() once from inet6_hash_connect() 2025-03-06 15:26:02 -08:00
ioam6.c net: convert to nla_get_*_default() 2024-11-11 10:32:06 -08:00
ioam6_iptunnel.c net: ipv6: ioam6: fix lwtunnel_output() loop 2025-03-20 11:25:52 +01:00
ip6_checksum.c
ip6_fib.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
ip6_flowlabel.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
ip6_gre.c net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
ip6_icmp.c
ip6_input.c ipv6: Use RCU in ip6_input() 2025-02-06 16:14:15 -08:00
ip6_offload.c net: gro: initialize network_offset in network layer 2024-05-27 16:46:59 -07:00
ip6_offload.h
ip6_output.c ipv6: save dontfrag in cork 2025-03-10 13:13:04 -07:00
ip6_tunnel.c net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
ip6_udp_tunnel.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
ip6_vti.c net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
ip6mr.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
ipcomp6.c
ipv6_sockglue.c ipv6: avoid indirect calls for SOL_IP socket options 2024-08-26 14:53:50 -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.c ipv6: mcast: add RCU protection to mld_newpack() 2025-02-13 08:37:21 -08:00
mcast_snoop.c
mip6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
ndisc.c ndisc: ndisc_send_redirect() cleanup 2025-02-15 09:08:46 -08:00
netfilter.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-06-13 13:13:46 -07:00
output_core.c ipv6: annotate data-races around cnf.hop_limit 2024-03-01 08:42:31 +00:00
ping.c ipv6: initialize inet socket cookies with sockcm_init 2025-02-18 18:27:20 -08:00
proc.c minmax: add a few more MIN_T/MAX_T users 2024-07-28 13:41:14 -07:00
protocol.c
raw.c ipv6: initialize inet socket cookies with sockcm_init 2025-02-18 18:27:20 -08:00
reassembly.c inet: frags: save a pair of atomic operations in reassembly 2025-03-18 13:18:36 +01:00
route.c ipv6: add exception routes to GC list in rt6_insert_exception 2025-04-10 20:09:05 -07:00
rpl.c
rpl_iptunnel.c net: ipv6: fix dst ref loop on input in rpl lwt 2025-02-27 14:18:22 +01:00
seg6.c ipv6: sr: restruct ifdefines 2024-05-30 18:29:38 -07:00
seg6_hmac.c ipv6: sr: fix memleak in seg6_hmac_init_algo 2024-05-21 13:16:25 +02:00
seg6_iptunnel.c net: ipv6: fix dst ref loop on input in seg6 lwt 2025-02-27 14:18:21 +01:00
seg6_local.c net: ip: make ip_route_input() return drop reasons 2024-11-12 11:24:51 +01:00
sit.c net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
syncookies.c tcp: use sk_skb_reason_drop to free rx packets 2024-06-19 12:44:22 +01:00
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 tcp/dccp: remove icsk->icsk_timeout 2025-03-25 10:34:33 -07:00
tcpv6_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-03-20 21:38:01 +01:00
tunnel6.c net: fill in MODULE_DESCRIPTION()s for ipv6 modules 2024-02-09 14:12:01 -08:00
udp.c Revert "udp_tunnel: GRO optimizations" 2025-03-25 09:15:07 -07:00
udp_impl.h
udp_offload.c Revert "udp_tunnel: GRO optimizations" 2025-03-25 09:15:07 -07:00
udplite.c
xfrm6_input.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
xfrm6_output.c xfrm: Fix the usage of skb->sk 2025-01-20 07:06:53 +01:00
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 ipsec-next-2024-03-06 2024-03-08 10:56:05 +00:00