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linux/net/ipv6
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Yan Zhai a171fbec88 lwt: Check LWTUNNEL_XMIT_CONTINUE strictly 
LWTUNNEL_XMIT_CONTINUE is implicitly assumed in ip(6)_finish_output2,
such that any positive return value from a xmit hook could cause
unexpected continue behavior, despite that related skb may have been
freed. This could be error-prone for future xmit hook ops. One of the
possible errors is to return statuses of dst_output directly.

To make the code safer, redefine LWTUNNEL_XMIT_CONTINUE value to
distinguish from dst_output statuses and check the continue
condition explicitly.

Fixes: 3a0af8fd61 ("bpf: BPF for lightweight tunnel infrastructure")
Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Yan Zhai <yan@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/96b939b85eda00e8df4f7c080f770970a4c5f698.1692326837.git.yan@cloudflare.com
2023-08-18 16:05:26 +02:00
..
ila ila: Remove unnecessary file net/ila.h 2023-08-02 12:28:16 -07:00
netfilter netfilter: defrag: Add glue hooks for enabling/disabling defrag 2023-07-28 16:52:08 -07:00
addrconf.c net: change accept_ra_min_rtr_lft to affect all RA lifetimes 2023-07-28 13:30:51 -07:00
addrconf_core.c
addrlabel.c
af_inet6.c inet: move inet->bind_address_no_port to inet->inet_flags 2023-08-16 11:09:17 +01:00
ah6.c
anycast.c IPv6: add extack info for IPv6 address add/delete 2023-07-28 11:01:56 +01:00
calipso.c
datagram.c inet: introduce inet->inet_flags 2023-08-16 11:09:16 +01:00
esp6.c
esp6_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-22 18:40:38 -07:00
exthdrs.c ipv6: exthdrs: Replace opencoded swap() implementation 2023-08-08 15:36:47 -07:00
exthdrs_core.c ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-24 08:43:39 +01:00
exthdrs_offload.c
fib6_notifier.c
fib6_rules.c
fou6.c
icmp.c ipv6: Constify the sk parameter of several helper functions. 2023-07-14 08:27:33 +01:00
inet6_connection_sock.c
inet6_hashtables.c net: remove duplicate INDIRECT_CALLABLE_DECLARE of udp[6]_ehashfn 2023-07-31 13:53:10 -07:00
ioam6.c
ioam6_iptunnel.c
ip6_checksum.c
ip6_fib.c net/ipv6: Remove expired routes with a separated list of routes. 2023-08-16 12:26:43 +01:00
ip6_flowlabel.c
ip6_gre.c net:ipv6: check return value of pskb_trim() 2023-07-19 12:25:58 +01:00
ip6_icmp.c
ip6_input.c
ip6_offload.c net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
ip6_offload.h
ip6_output.c lwt: Check LWTUNNEL_XMIT_CONTINUE strictly 2023-08-18 16:05:26 +02:00
ip6_tunnel.c
ip6_udp_tunnel.c
ip6_vti.c
ip6mr.c ip6mr: Fix skb_under_panic in ip6mr_cache_report() 2023-08-02 10:35:21 +01:00
ipcomp6.c
ipv6_sockglue.c inet: move inet->is_icsk to inet->inet_flags 2023-08-16 11:09:17 +01:00
Kconfig
Makefile
mcast.c ipv6: Constify the sk parameter of several helper functions. 2023-07-14 08:27:33 +01:00
mcast_snoop.c
mip6.c
ndisc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-10 14:10:53 -07:00
netfilter.c
output_core.c
ping.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-03 14:34:37 -07:00
proc.c
protocol.c
raw.c inet: move inet->hdrincl to inet->inet_flags 2023-08-16 11:09:17 +01:00
reassembly.c
route.c net/ipv6: Remove expired routes with a separated list of routes. 2023-08-16 12:26:43 +01:00
rpl.c ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv(). 2023-06-19 11:32:58 -07:00
rpl_iptunnel.c ipv6: rpl: Remove redundant skb_dst_drop(). 2023-07-12 17:12:29 -07:00
seg6.c
seg6_hmac.c
seg6_iptunnel.c
seg6_local.c seg6: add NEXT-C-SID support for SRv6 End.X behavior 2023-08-15 18:51:47 -07:00
sit.c
syncookies.c
sysctl_net_ipv6.c
tcp_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-08-03 14:34:37 -07:00
tcpv6_offload.c net: Make gro complete function to return void 2023-05-31 09:50:17 +01:00
tunnel6.c
udp.c inet: introduce inet->inet_flags 2023-08-16 11:09:16 +01:00
udp_impl.h
udp_offload.c net: gro: fix misuse of CB in udp socket lookup 2023-07-29 17:10:27 +01:00
udplite.c ipv6: remove hard coded limitation on ipv6_pinfo 2023-07-24 09:39:31 +01:00
xfrm6_input.c xfrm: fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets 2023-06-09 08:16:34 +02:00
xfrm6_output.c
xfrm6_policy.c
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c