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linux/net/ipv6
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Maciej Żenczykowski 434ae939b9 ipv6: fix ndisc_is_useropt() handling for PIO 
[ Upstream commit a46c68debf ]

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: 048c796beb ("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>
History 2024-08-19 05:45:32 +02:00
..
ila ila: block BH in ila_output() 2024-07-27 10:46:09 +02:00
netfilter netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init(). 2024-08-19 05:45:32 +02:00
addrconf.c ipv6: take care of scope when choosing the src addr 2024-08-19 05:45:11 +02:00
addrconf_core.c ipv6: Ensure natural alignment of const ipv6 loopback and router addresses 2024-02-23 08:54:54 +01:00
addrlabel.c ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network 2022-11-16 09:58:18 +01:00
af_inet6.c ipv6: annotate some data-races around sk->sk_prot 2024-07-05 09:14:50 +02:00
ah6.c xfrm: remove hdr_offset indirection 2021-06-11 14:48:50 +02:00
anycast.c ipv6: fix memory leaks on IPV6_ADDRFORM path 2020-07-30 16:30:55 -07:00
calipso.c cipso,calipso: resolve a number of problems with the DOI refcounts 2021-03-04 15:26:57 -08:00
datagram.c ipv6: Fix datagram socket connection with DSCP. 2023-02-22 12:57:09 +01:00
esp6.c net: esp: cleanup esp_output_tail_tcp() in case of unsupported ESPINTCP 2024-08-19 05:44:55 +02:00
esp6_offload.c xfrm: Linearize the skb after offloading if needed. 2023-06-28 10:29:46 +02:00
exthdrs.c ipv6: rpl: Fix Route of Death. 2023-06-14 11:13:02 +02:00
exthdrs_core.c ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-30 13:55:31 +01:00
exthdrs_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fib6_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib6_rules.c ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action() 2024-05-17 11:50:58 +02:00
fou6.c net: Add MODULE_DESCRIPTION entries to network modules 2020-06-20 21:33:57 -07:00
icmp.c icmp6: Fix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev(). 2023-07-23 13:47:41 +02:00
inet6_connection_sock.c lsm,selinux: pass flowi_common instead of flowi to the LSM hooks 2020-11-23 18:36:21 -05:00
inet6_hashtables.c net: remove duplicate reuseport_lookup functions 2024-06-16 13:39:21 +02:00
ioam6.c ipv6: ioam: move the check for undefined bits 2021-10-12 11:49:49 +01:00
ioam6_iptunnel.c ipv6: ioam: move the check for undefined bits 2021-10-12 11:49:49 +01:00
ip6_checksum.c net: udp: fix handling of CHECKSUM_COMPLETE packets 2018-10-24 14:18:16 -07:00
ip6_fib.c ipv6: fix possible race in __fib6_drop_pcpu_from() 2024-07-05 09:14:09 +02:00
ip6_flowlabel.c ipv6: per-netns exclusive flowlabel checks 2022-02-23 12:03:10 +01:00
ip6_gre.c erspan: make sure erspan_base_hdr is present in skb->head 2024-04-10 16:19:38 +02:00
ip6_icmp.c net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending 2021-02-23 11:29:52 -08:00
ip6_input.c ipv6: annotate data-races around cnf.disable_ipv6 2024-07-18 13:07:43 +02:00
ip6_offload.c gso: do not skip outer ip header in case of ipip and net_failover 2022-03-02 11:47:56 +01:00
ip6_offload.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6_output.c ipv6: prevent NULL dereference in ip6_output() 2024-07-18 13:07:43 +02:00
ip6_tunnel.c ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv() 2024-02-23 08:54:53 +01:00
ip6_udp_tunnel.c net: Make locking in sock_bindtoindex optional 2020-06-01 14:57:14 -07:00
ip6_vti.c ip6_vti: fix slab-use-after-free in decode_session6 2023-08-26 14:23:32 +02:00
ip6mr.c ip6mr: Fix skb_under_panic in ip6mr_cache_report() 2023-08-11 15:13:53 +02:00
ipcomp6.c xfrm: remove hdr_offset indirection 2021-06-11 14:48:50 +02:00
ipv6_sockglue.c tcp: Fix data races around icsk->icsk_af_ops. 2024-07-05 09:14:51 +02:00
Kconfig ipv6: ioam: Support for IOAM injection with lwtunnels 2021-07-21 08:14:33 -07:00
Makefile ipv6: ioam: Support for IOAM injection with lwtunnels 2021-07-21 08:14:33 -07:00
mcast.c ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down() 2024-03-26 18:21:19 -04:00
mcast_snoop.c net: bridge: mcast: fix broken length + header check for MRDv6 Adv. 2021-04-27 14:02:06 -07:00
mip6.c xfrm: ipv6: move mip6_rthdr_offset into xfrm core 2021-06-11 14:48:50 +02:00
ndisc.c ipv6: fix ndisc_is_useropt() handling for PIO 2024-08-19 05:45:32 +02:00
netfilter.c netfilter: Update ip6_route_me_harder to consider L3 domain 2022-05-09 09:14:41 +02:00
output_core.c ipv6: use prandom_u32() for ID generation 2021-05-31 22:12:08 -07:00
ping.c ping6: Fix send to link-local addresses with VRF. 2023-06-21 15:59:16 +02:00
proc.c net: udp: introduce UDP_MIB_MEMERRORS for udp_mem 2020-11-09 15:34:44 -08:00
protocol.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
raw.c ipv{4,6}/raw: fix output xfrm lookup wrt protocol 2023-06-05 09:21:26 +02:00
reassembly.c net: ipv6: fix wrong start position when receive hop-by-hop fragment 2024-06-16 13:39:25 +02:00
route.c ipv6: prevent possible NULL dereference in rt6_probe() 2024-07-05 09:14:29 +02:00
rpl.c net: rpl: fix rpl header size calculation 2023-04-26 13:51:49 +02:00
rpl_iptunnel.c net: ipv6: rpl_iptunnel: block BH in rpl_output() and rpl_input() 2024-07-27 10:46:09 +02:00
seg6.c ipv6: sr: fix invalid unregister error path 2024-06-16 13:39:26 +02:00
seg6_hmac.c ipv6: sr: fix memleak in seg6_hmac_init_algo 2024-06-16 13:39:47 +02:00
seg6_iptunnel.c ipv6: sr: block BH in seg6_output_core() and seg6_input_core() 2024-07-05 09:14:06 +02:00
seg6_local.c seg6: fix parameter passing when calling NF_HOOK() in End.DX4 and End.DX6 behaviors 2024-07-05 09:14:31 +02:00
sit.c sit: update dev->needed_headroom in ipip6_tunnel_bind_dev() 2023-05-17 11:50:16 +02:00
syncookies.c dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2023-11-20 11:08:28 +01:00
sysctl_net_ipv6.c ipv6: ioam: Data plane support for Pre-allocated Trace 2021-07-21 08:14:33 -07:00
tcp_ipv6.c tcp: fix races in tcp_v[46]_err() 2024-08-19 05:44:56 +02:00
tcpv6_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tunnel6.c tunnel6: add tunnel6_input_afinfo for ipip and ipv6 tunnels 2020-07-09 12:52:37 +02:00
udp.c udp: Avoid call to compute_score on multiple sites 2024-06-16 13:39:21 +02:00
udp_impl.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 13:51:54 +02:00
udp_offload.c udp: do not transition UDP GRO fraglist partial checksums to unnecessary 2024-04-10 16:19:39 +02:00
udplite.c udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). 2023-05-30 13:55:31 +01:00
xfrm6_input.c xfrm: Preserve vlan tags for transport mode software GRO 2024-05-17 11:50:57 +02:00
xfrm6_output.c xfrm: fix tunnel model fragmentation behavior 2022-04-08 14:22:46 +02:00
xfrm6_policy.c xfrm6: check ip6_dst_idev() return value in xfrm6_get_saddr() 2024-07-05 09:14:29 +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: remove description from xfrm_type struct 2021-06-09 09:38:52 +02:00