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Maciej Żenczykowski 254636f1d3 ipv6: fix ndisc_is_useropt() handling for PIO 
[ Upstream commit a46c68debf3be3a477a69ccbf0a1d050df841676 ]

The current logic only works if the PIO is between two
other ND user options.  This fixes it so that the PIO
can also be either before or after other ND user options
(for example the first or last option in the RA).

side note: there's actually Android tests verifying
a portion of the old broken behaviour, so:
  https://android-review.googlesource.com/c/kernel/tests/+/3196704
fixes those up.

Cc: Jen Linkova <furry@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: Patrick Rohr <prohr@google.com>
Cc: David Ahern <dsahern@kernel.org>
Cc: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Fixes: 048c796beb6e ("ipv6: adjust ndisc_is_useropt() to also return true for PIO")
Link: https://patch.msgid.link/20240730001748.147636-1-maze@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:20 +01:00
..
ila ila: block BH in ila_output() 2024-11-19 14:19:47 +01:00
netfilter netfilter: complete validation of user input 2024-11-19 11:32:20 +01:00
addrconf.c ipv6: take care of scope when choosing the src addr 2024-11-23 23:20:12 +01:00
addrconf_core.c ipv6: Ensure natural alignment of const ipv6 loopback and router addresses 2024-11-18 12:13:22 +01:00
addrlabel.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
af_inet6.c ipv6: annotate some data-races around sk->sk_prot 2024-11-19 14:19:35 +01:00
ah6.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
anycast.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
calipso.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
datagram.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
esp6.c net: esp: cleanup esp_output_tail_tcp() in case of unsupported ESPINTCP 2024-11-23 23:20:06 +01:00
esp6_offload.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
exthdrs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
exthdrs_core.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
exthdrs_offload.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib6_notifier.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib6_rules.c ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action() 2024-11-19 11:32:46 +01:00
fou6.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
icmp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet6_connection_sock.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet6_hashtables.c net: remove duplicate reuseport_lookup functions 2024-11-19 12:26:55 +01:00
ip6_checksum.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_fib.c ipv6: fix possible race in __fib6_drop_pcpu_from() 2024-11-19 14:19:01 +01:00
ip6_flowlabel.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_gre.c erspan: make sure erspan_base_hdr is present in skb->head 2024-11-19 09:22:47 +01:00
ip6_icmp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_input.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_offload.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_offload.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_output.c ipv6: avoid atomic fragment on GSO packets 2024-11-18 11:42:50 +01:00
ip6_tunnel.c Revert "ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()" 2024-11-18 20:12:45 +01:00
ip6_udp_tunnel.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_vti.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6mr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipcomp6.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv6_sockglue.c tcp: Fix data races around icsk->icsk_af_ops. 2024-11-19 14:19:35 +01:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mcast.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mcast_snoop.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mip6.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ndisc.c ipv6: fix ndisc_is_useropt() handling for PIO 2024-11-23 23:20:20 +01:00
netfilter.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
output_core.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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
reassembly.c net: ipv6: fix wrong start position when receive hop-by-hop fragment 2024-11-19 12:26:56 +01:00
route.c ipv6: prevent possible NULL dereference in rt6_probe() 2024-11-19 14:19:08 +01:00
rpl.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rpl_iptunnel.c net: ipv6: rpl_iptunnel: block BH in rpl_output() and rpl_input() 2024-11-19 14:19:47 +01:00
seg6.c ipv6: sr: fix invalid unregister error path 2024-11-19 12:26:57 +01:00
seg6_hmac.c ipv6: sr: fix memleak in seg6_hmac_init_algo 2024-11-19 12:27:09 +01:00
seg6_iptunnel.c ipv6: sr: block BH in seg6_output_core() and seg6_input_core() 2024-11-19 14:19:00 +01:00
seg6_local.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sit.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
syncookies.c dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2024-11-18 11:43:07 +01:00
sysctl_net_ipv6.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp_ipv6.c tcp: Fix data races around icsk->icsk_af_ops. 2024-11-19 14:19:35 +01:00
tcpv6_offload.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tunnel6.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp.c udp: Avoid call to compute_score on multiple sites 2024-11-19 12:26:55 +01:00
udp_impl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_offload.c udp: do not transition UDP GRO fraglist partial checksums to unnecessary 2024-11-19 09:22:47 +01:00
udplite.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm6_input.c xfrm: Preserve vlan tags for transport mode software GRO 2024-11-19 11:32:45 +01:00
xfrm6_output.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm6_policy.c xfrm6: check ip6_dst_idev() return value in xfrm6_get_saddr() 2024-11-19 14:19:08 +01:00
xfrm6_protocol.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm6_state.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm6_tunnel.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00