Eric Dumazet e6ced831ef tcp: md5: refine tcp_md5_do_add()/tcp_md5_hash_key() barriers ... My prior fix went a bit too far, according to Herbert and Mathieu. Since we accept that concurrent TCP MD5 lookups might see inconsistent keys, we can use READ_ONCE()/WRITE_ONCE() instead of smp_rmb()/smp_wmb() Clearing all key->key[] is needed to avoid possible KMSAN reports, if key->keylen is increased. Since tcp_md5_do_add() is not fast path, using __GFP_ZERO to clear all struct tcp_md5sig_key is simpler. data_race() was added in linux-5.8 and will prevent KCSAN reports, this can safely be removed in stable backports, if data_race() is not yet backported. v2: use data_race() both in tcp_md5_hash_key() and tcp_md5_do_add() Fixes: 6a2febec33 ("tcp: md5: add missing memory barriers in tcp_md5_do_add()/tcp_md5_hash_key()") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Marco Elver <elver@google.com> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>		2020-07-01 17:29:45 -07:00
..
bpfilter
netfilter	netfilter: iptables: Add a .pre_exit hook in all iptable_foo.c.	2020-06-25 00:50:31 +02:00
af_inet.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-05-22 18:30:34 -07:00
ah4.c
arp.c
bpf_tcp_ca.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-03-30 19:52:37 -07:00
cipso_ipv4.c	netlabel: cope with NULL catmap	2020-05-12 18:12:40 -07:00
datagram.c
devinet.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
esp4_offload.c	net: Add MODULE_DESCRIPTION entries to network modules	2020-06-20 21:33:57 -07:00
esp4.c
fib_frontend.c	ipv4: nexthop version of fib_info_nh_uses_dev	2020-05-26 16:06:07 -07:00
fib_lookup.h	net: add net available in build_state	2020-03-29 22:30:57 -07:00
fib_notifier.c
fib_rules.c
fib_semantics.c	net: Fix the arp error in some cases	2020-06-18 20:21:51 -07:00
fib_trie.c	ipv4: Refactor nhc evaluation in fib_table_lookup	2020-05-26 16:06:07 -07:00
fou.c	net: Add MODULE_DESCRIPTION entries to network modules	2020-06-20 21:33:57 -07:00
gre_demux.c
gre_offload.c
icmp.c	docs: networking: convert ip-sysctl.txt to ReST	2020-04-28 14:40:18 -07:00
igmp.c	ip*_mc_gsfget(): lift copyout of struct group_filter into callers	2020-05-20 20:31:27 -04:00
inet_connection_sock.c	inet_connection_sock: clear inet_num out of destroy helper	2020-06-04 15:59:56 -07:00
inet_diag.c	inet_diag: bc: read cgroup id only for full sockets	2020-05-02 16:42:51 -07:00
inet_fragment.c
inet_hashtables.c
inet_timewait_sock.c
inetpeer.c
ip_forward.c
ip_fragment.c
ip_gre.c	net: add a new ndo_tunnel_ioctl method	2020-05-19 15:45:11 -07:00
ip_input.c	bpf: Add socket assign support	2020-03-30 13:45:04 -07:00
ip_options.c
ip_output.c	net: Fix typo of SKB_SGO_CB_OFFSET	2020-03-29 21:53:18 -07:00
ip_sockglue.c	ipv4: add ip_sock_set_pktinfo	2020-05-28 11:11:45 -07:00
ip_tunnel_core.c	net: ip_tunnel: add header_ops for layer 3 devices	2020-06-30 12:29:39 -07:00
ip_tunnel.c	ip_tunnel: fix use-after-free in ip_tunnel_lookup()	2020-06-18 20:12:34 -07:00
ip_vti.c	net: vti: implement header_ops->parse_protocol for AF_PACKET	2020-06-30 12:29:39 -07:00
ipcomp.c
ipconfig.c
ipip.c	net: ipip: implement header_ops->parse_protocol for AF_PACKET	2020-06-30 12:29:39 -07:00
ipmr_base.c
ipmr.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-24 13:47:27 -07:00
Kconfig	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec	2020-06-19 13:03:47 -07:00
Makefile
metrics.c
netfilter.c
netlink.c
nexthop.c	nexthop: Fix fdb labeling for groups	2020-06-10 13:18:40 -07:00
ping.c
proc.c	mptcp: add and use MIB counter infrastructure	2020-03-29 22:14:49 -07:00
protocol.c
raw_diag.c
raw.c
route.c	net: ipv4: Fix wrong type conversion from hint to rt in ip_route_use_hint()	2020-06-27 18:02:32 -07:00
syncookies.c
sysctl_net_ipv4.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-05-01 17:02:27 -07:00
tcp_bbr.c
tcp_bic.c
tcp_bpf.c	bpf: tcp: Recv() should return 0 when the peer socket is closed	2020-06-12 15:10:12 -07:00
tcp_cdg.c
tcp_cong.c
tcp_cubic.c	tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT	2020-06-25 16:08:47 -07:00
tcp_dctcp.c
tcp_dctcp.h
tcp_diag.c
tcp_fastopen.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: don't ignore ECN CWR on pure ACK	2020-06-25 12:20:24 -07:00
tcp_ipv4.c	tcp: md5: refine tcp_md5_do_add()/tcp_md5_hash_key() barriers	2020-07-01 17:29:45 -07:00
tcp_lp.c
tcp_metrics.c
tcp_minisocks.c	mptcp: add new sock flag to deal with join subflows	2020-05-15 12:30:13 -07:00
tcp_nv.c
tcp_offload.c
tcp_output.c	tcp: defer xmit timer reset in tcp_xmit_retransmit_queue()	2020-05-06 17:29:38 -07:00
tcp_rate.c
tcp_recovery.c
tcp_scalable.c
tcp_timer.c	tcp: add tp->dup_ack_counter	2020-04-30 13:24:01 -07:00
tcp_ulp.c
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tcp.c	tcp: md5: refine tcp_md5_do_add()/tcp_md5_hash_key() barriers	2020-07-01 17:29:45 -07:00
tunnel4.c
udp_bpf.c
udp_diag.c
udp_impl.h
udp_offload.c	udp: initialize is_flist with 0 in udp_gro_receive	2020-03-30 10:35:03 -07:00
udp_tunnel.c	net: Make locking in sock_bindtoindex optional	2020-06-01 14:57:14 -07:00
udp.c	xfrm: add support for UDPv6 encapsulation of ESP	2020-04-28 11:28:36 +02:00
udplite.c
xfrm4_input.c	xfrm: state: remove extract_input indirection from xfrm_state_afinfo	2020-05-06 09:40:08 +02:00
xfrm4_output.c	xfrm: fix unused variable warning if CONFIG_NETFILTER=n	2020-05-11 15:12:27 +02:00
xfrm4_policy.c
xfrm4_protocol.c
xfrm4_state.c	xfrm: remove output_finish indirection from xfrm_state_afinfo	2020-05-06 09:40:08 +02:00
xfrm4_tunnel.c