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linux-stable-mirror/net/ipv4
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Eric Dumazet ddf251fa2b tcp_metrics: fix data-race in tcpm_suck_dst() vs fastopen 
Whenever tcpm_new() reclaims an old entry, tcpm_suck_dst()
would overwrite data that could be read from tcp_fastopen_cache_get()
or tcp_metrics_fill_info().

We need to acquire fastopen_seqlock to maintain consistency.

For newly allocated objects, tcpm_new() can switch to kzalloc()
to avoid an extra fastopen_seqlock acquisition.

Fixes: 1fe4c481ba ("net-tcp: Fast Open client - cookie cache")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230802131500.1478140-7-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03 10:58:24 -07:00
..
bpfilter
net: Use umd_cleanup_helper()
2023-05-31 13:06:57 +02:00
netfilter
xtables: move icmp/icmpv6 logic to xt_tcpudp
2023-03-22 21:48:59 +01:00
af_inet.c
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
ah4.c
…
arp.c
neighbour: annotate lockless accesses to n->nud_state
2023-03-15 00:37:32 -07:00
bpf_tcp_ca.c
bpf: Remove unused arguments from btf_struct_access().
2023-04-04 16:57:10 -07:00
cipso_ipv4.c
…
datagram.c
…
devinet.c
net: ipv4: Allow changing IPv4 address protocol
2023-03-23 08:32:52 +00:00
esp4_offload.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-06-22 18:40:38 -07:00
esp4.c
net: ipv4: Use kfree_sensitive instead of kfree
2023-07-19 11:03:03 +01:00
fib_frontend.c
ipv4: Fix incorrect table ID in IOCTL path
2023-03-16 17:26:31 -07:00
fib_lookup.h
…
fib_notifier.c
…
fib_rules.c
…
fib_semantics.c
neighbour: switch to standard rcu, instead of rcu_bh
2023-03-21 21:32:18 -07:00
fib_trie.c
…
fou_bpf.c
bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs
2023-04-12 16:40:39 -07:00
fou_core.c
bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs
2023-04-12 16:40:39 -07:00
fou_nl.c
net: ynl: prefix uAPI header include with uapi/
2023-05-26 10:30:14 +01:00
fou_nl.h
net: ynl: prefix uAPI header include with uapi/
2023-05-26 10:30:14 +01:00
gre_demux.c
…
gre_offload.c
net: move gso declarations and functions to their own files
2023-06-10 00:11:41 -07:00
icmp.c
icmp: guard against too small mtu
2023-03-31 21:37:06 -07:00
igmp.c
ipv4: constify ip_mc_sf_allow() socket argument
2023-03-17 08:56:37 +00:00
inet_connection_sock.c
tcp: annotate data-races around icsk->icsk_syn_retries
2023-07-20 12:34:18 -07:00
inet_diag.c
net: annotate data-races around sk->sk_mark
2023-07-29 18:13:41 +01:00
inet_fragment.c
…
inet_hashtables.c
Revert "tcp: avoid the lookup process failing to get sk in ehash table"
2023-07-19 20:57:40 -07:00
inet_timewait_sock.c
Revert "tcp: avoid the lookup process failing to get sk in ehash table"
2023-07-19 20:57:40 -07:00
inetpeer.c
…
ip_forward.c
…
ip_fragment.c
Revert "net: Remove low_thresh in ip defrag"
2023-05-16 20:46:30 -07:00
ip_gre.c
ipv4: ip_gre: fix return value check in erspan_xmit()
2023-07-19 12:27:09 +01:00
ip_input.c
…
ip_options.c
…
ip_output.c
udp: Fix __ip_append_data()'s handling of MSG_SPLICE_PAGES
2023-08-02 19:19:32 -07:00
ip_sockglue.c
net: annotate data-races around sk->sk_priority
2023-07-29 18:13:41 +01:00
ip_tunnel_core.c
…
ip_tunnel.c
Daniel Borkmann says:
2023-04-13 16:43:38 -07:00
ip_vti.c
…
ipcomp.c
…
ipconfig.c
net: ipconfig: move ic_nameservers_fallback into #ifdef block
2023-05-22 11:17:55 +01:00
ipip.c
ipip,ip_tunnel,sit: Add FOU support for externally controlled ipip devices
2023-04-12 16:40:39 -07:00
ipmr_base.c
…
ipmr.c
net: ioctl: Use kernel memory on protocol ioctl callbacks
2023-06-15 22:33:26 -07:00
Kconfig
…
Makefile
bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs
2023-04-12 16:40:39 -07:00
metrics.c
…
netfilter.c
…
netlink.c
…
nexthop.c
neighbour: switch to standard rcu, instead of rcu_bh
2023-03-21 21:32:18 -07:00
ping.c
ping: Stop using RTO_ONLINK.
2023-05-24 08:22:06 +01:00
proc.c
…
protocol.c
…
raw_diag.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-04-06 12:01:20 -07:00
raw.c
net: annotate data-races around sk->sk_priority
2023-07-29 18:13:41 +01:00
route.c
net: annotate data-races around sk->sk_mark
2023-07-29 18:13:41 +01:00
syncookies.c
tcp: Set route scope properly in cookie_v4_check().
2023-06-06 21:13:03 -07:00
sysctl_net_ipv4.c
tcp: enforce receive buffer memory limits by allowing the tcp window to shrink
2023-06-17 09:53:53 +01:00
tcp_bbr.c
…
tcp_bic.c
…
tcp_bpf.c
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
tcp_cdg.c
…
tcp_cong.c
net: Update an existing TCP congestion control algorithm.
2023-03-22 22:53:00 -07:00
tcp_cubic.c
…
tcp_dctcp.c
…
tcp_dctcp.h
…
tcp_diag.c
…
tcp_fastopen.c
tcp: annotate data-races around fastopenq.max_qlen
2023-07-20 12:34:18 -07:00
tcp_highspeed.c
…
tcp_htcp.c
…
tcp_hybla.c
…
tcp_illinois.c
…
tcp_input.c
tcp: annotate data races in __tcp_oow_rate_limited()
2023-07-03 09:25:02 +01:00
tcp_ipv4.c
net: annotate data-races around sk->sk_priority
2023-07-29 18:13:41 +01:00
tcp_lp.c
…
tcp_metrics.c
tcp_metrics: fix data-race in tcpm_suck_dst() vs fastopen
2023-08-03 10:58:24 -07:00
tcp_minisocks.c
tcp: annotate data-races around tcp_rsk(req)->ts_recent
2023-07-18 19:45:27 -07:00
tcp_nv.c
…
tcp_offload.c
net: move gso declarations and functions to their own files
2023-06-10 00:11:41 -07:00
tcp_output.c
tcp: annotate data-races around tcp_rsk(req)->ts_recent
2023-07-18 19:45:27 -07:00
tcp_plb.c
…
tcp_rate.c
…
tcp_recovery.c
tcp: preserve const qualifier in tcp_sk()
2023-03-18 12:23:34 +00:00
tcp_scalable.c
…
tcp_timer.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-06-01 15:38:26 -07:00
tcp_ulp.c
…
tcp_vegas.c
…
tcp_vegas.h
…
tcp_veno.c
…
tcp_westwood.c
…
tcp_yeah.c
…
tcp.c
tcp: annotate data-races around fastopenq.max_qlen
2023-07-20 12:34:18 -07:00
tunnel4.c
…
udp_bpf.c
bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser()
2023-03-03 17:25:15 +01:00
udp_diag.c
…
udp_impl.h
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
udp_offload.c
net: gro: fix misuse of CB in udp socket lookup
2023-07-29 17:10:27 +01:00
udp_tunnel_core.c
…
udp_tunnel_nic.c
…
udp_tunnel_stub.c
…
udp.c
net: gro: fix misuse of CB in udp socket lookup
2023-07-29 17:10:27 +01:00
udplite.c
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
xfrm4_input.c
xfrm: fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets
2023-06-09 08:16:34 +02:00
xfrm4_output.c
…
xfrm4_policy.c
net: dst: fix missing initialization of rt_uncached
2023-04-21 20:26:56 -07:00
xfrm4_protocol.c
…
xfrm4_state.c
…
xfrm4_tunnel.c
…