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linux/net/ipv4
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Eric Dumazet a37178ca64 tcp: fix cookie_init_timestamp() overflows 
[ Upstream commit 73ed8e0338 ]

cookie_init_timestamp() is supposed to return a 64bit timestamp
suitable for both TSval determination and setting of skb->tstamp.

Unfortunately it uses 32bit fields and overflows after
2^32 * 10^6 nsec (~49 days) of uptime.

Generated TSval are still correct, but skb->tstamp might be set
far away in the past, potentially confusing other layers.

tcp_ns_to_ts() is changed to return a full 64bit value,
ts and ts_now variables are changed to u64 type,
and TSMASK is removed in favor of shifts operations.

While we are at it, change this sequence:
		ts >>= TSBITS;
		ts--;
		ts <<= TSBITS;
		ts |= options;
to:
		ts -= (1UL << TSBITS);

Fixes: 9a568de481 ("tcp: switch TCP TS option (RFC 7323) to 1ms clock")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:56:52 +01:00
..
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
tcp: allow again tcp_disconnect() when threads are waiting
2023-10-25 12:16:21 +02:00
ah4.c
net: ipv4: Remove completion function scaffolding
2023-02-13 18:35:15 +08:00
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
cipso_ipv4: use iph_set_totlen in skbuff_setattr
2023-02-01 20:54:27 -08:00
datagram.c
ipv4: fix data-races around inet->inet_id
2023-08-20 11:40:49 +01:00
devinet.c
net: ipv4: fix one memleak in __inet_del_ifa()
2023-09-19 12:30:27 +02:00
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: fix return value check in esp_remove_trailer
2023-10-25 12:16:13 +02:00
fib_frontend.c
ipv4: Fix incorrect table ID in IOCTL path
2023-03-16 17:26:31 -07:00
fib_lookup.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-17 11:44:20 -08:00
fib_notifier.c
net: ipv4: remove superfluous header files from fib_notifier.c
2021-09-28 17:32:56 -07:00
fib_rules.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
fib_semantics.c
ipv4/fib: send notify when delete source address routes
2023-10-25 12:16:19 +02:00
fib_trie.c
ipv4/fib: send notify when delete source address routes
2023-10-25 12:16:19 +02:00
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
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
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
igmp: limit igmpv3_newpack() packet size to IP_MAX_MTU
2023-09-13 09:53:49 +02:00
inet_connection_sock.c
tcp: allow again tcp_disconnect() when threads are waiting
2023-10-25 12:16:21 +02:00
inet_diag.c
net: annotate data-races around sk->sk_mark
2023-07-29 18:13:41 +01:00
inet_fragment.c
net: dropreason: add SKB_DROP_REASON_FRAG_REASM_TIMEOUT
2022-10-31 20:14:27 -07:00
inet_hashtables.c
tcp: Fix listen() warning with v4-mapped-v6 address.
2023-10-25 12:16:14 +02:00
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
inetpeer: Fix data-races around sysctl.
2022-07-08 12:10:33 +01:00
ip_forward.c
ip: Fix data-races around sysctl_ip_fwd_update_priority.
2022-07-15 11:49:55 +01:00
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
ipv4: ignore dst hint for multipath routes
2023-09-19 12:30:17 +02:00
ip_options.c
ipv4: drop fragmentation code from ip_options_build()
2022-01-29 17:53:07 +00:00
ip_output.c
net/ipv4: return the real errno instead of -EINVAL
2023-09-23 11:14:20 +02:00
ip_sockglue.c
net: annotate data-races around sk->sk_tsflags
2023-09-19 12:30:17 +02:00
ip_tunnel_core.c
tunnels: fix kasan splat when generating ipv4 pmtu error
2023-08-04 18:24:52 -07:00
ip_tunnel.c
Daniel Borkmann says:
2023-04-13 16:43:38 -07:00
ip_vti.c
ip_vti: fix potential slab-use-after-free in decode_session6
2023-07-11 11:06:08 +02:00
ipcomp.c
xfrm: ipcomp: add extack to ipcomp{4,6}_init_state
2022-09-29 07:18:00 +02:00
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: adopt rcu_read_lock() in mr_dump()
2022-06-24 11:34:38 +01:00
ipmr.c
net: ioctl: Use kernel memory on protocol ioctl callbacks
2023-06-15 22:33:26 -07:00
Kconfig
tcp: configurable source port perturb table size
2022-11-16 13:02:04 +00:00
Makefile
bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs
2023-04-12 16:40:39 -07:00
metrics.c
ipv4: prevent potential spectre v1 gadget in ip_metrics_convert()
2023-01-23 21:37:25 -08:00
netfilter.c
netfilter: Use l3mdev flow key when re-routing mangled packets
2022-05-16 13:03:29 +02:00
netlink.c
…
nexthop.c
nexthop: Fix infinite nexthop bucket dump when using maximum nexthop ID
2023-08-09 13:45:12 -07:00
ping.c
ping: Stop using RTO_ONLINK.
2023-05-24 08:22:06 +01:00
proc.c
icmp: Add counters for rate limits
2023-01-26 10:52:18 +01:00
protocol.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
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
ipv4: Set offload_failed flag in fibmatch results
2023-10-10 22:03:03 +02:00
syncookies.c
tcp: fix cookie_init_timestamp() overflows
2023-11-20 11:56:52 +01:00
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
bpf: Add __bpf_kfunc tag to all kfuncs
2023-02-02 00:25:14 +01:00
tcp_bic.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_bpf.c
tcp_bpf: properly release resources on error paths
2023-10-25 12:16:21 +02:00
tcp_cdg.c
Merge tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
2022-10-16 15:27:07 -07:00
tcp_cong.c
net: Update an existing TCP congestion control algorithm.
2023-03-22 22:53:00 -07:00
tcp_cubic.c
bpf: Add __bpf_kfunc tag to all kfuncs
2023-02-02 00:25:14 +01:00
tcp_dctcp.c
bpf: Add __bpf_kfunc tag to all kfuncs
2023-02-02 00:25:14 +01:00
tcp_dctcp.h
…
tcp_diag.c
tcp: Access &tcp_hashinfo via net.
2022-09-20 10:21:49 -07:00
tcp_fastopen.c
tcp: annotate data-races around fastopenq.max_qlen
2023-07-20 12:34:18 -07:00
tcp_highspeed.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_htcp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_hybla.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_illinois.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_input.c
tcp: call tcp_try_undo_recovery when an RTOd TFO SYNACK is ACKed
2023-11-20 11:56:47 +01:00
tcp_ipv4.c
tcp: check mptcp-level constraints for backlog coalescing
2023-10-25 12:16:11 +02:00
tcp_lp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_metrics.c
tcp_metrics: do not create an entry from tcp_init_metrics()
2023-11-20 11:56:50 +01:00
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: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
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: tsq: relax tcp_small_queue_check() when rtx queue contains a single skb
2023-10-25 12:16:14 +02:00
tcp_plb.c
prandom: remove prandom_u32_max()
2022-12-20 03:13:45 +01:00
tcp_rate.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-04-28 13:02:01 -07:00
tcp_recovery.c
tcp: fix excessive TLP and RACK timeouts from HZ rounding
2023-10-25 12:16:14 +02:00
tcp_scalable.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_timer.c
net: tcp: fix unexcepted socket die when snd_wnd is 0
2023-09-13 09:53:06 +02:00
tcp_ulp.c
net/ulp: use consistent error code when blocking ULP
2023-01-19 09:26:16 -08:00
tcp_vegas.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_vegas.h
…
tcp_veno.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_westwood.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_yeah.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp.c
net: do not leave an empty skb in write queue
2023-11-02 09:36:52 +01:00
tunnel4.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
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: Access &udp_table via net.
2022-11-16 09:43:35 +00:00
udp_impl.h
sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)
2023-06-24 15:50:13 -07:00
udp_offload.c
udp: move udp->gro_enabled to udp->udp_flags
2023-11-20 11:56:47 +01:00
udp_tunnel_core.c
udp: lockless UDP_ENCAP_L2TPINUDP / UDP_GRO
2023-11-20 11:56:47 +01:00
udp_tunnel_nic.c
udp_tunnel: Add checks for nla_nest_start() in __udp_tunnel_nic_dump_write()
2022-11-29 08:44:24 -08:00
udp_tunnel_stub.c
…
udp.c
udplite: fix various data-races
2023-11-20 11:56:47 +01:00
udplite.c
udplite: remove UDPLITE_BIT
2023-11-20 11:56:47 +01:00
xfrm4_input.c
udp: annotate data-races around udp->encap_type
2023-11-20 11:56:47 +01:00
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
net: xfrm: unexport __init-annotated xfrm4_protocol_init()
2022-06-08 10:10:13 -07:00
xfrm4_state.c
…
xfrm4_tunnel.c
xfrm: tunnel: add extack to ipip_init_state, xfrm6_tunnel_init_state
2022-09-29 07:18:00 +02:00