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linux-stable/net/ipv4
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Vadim Fedorenko 488b6d91b0 net-timestamp: make sk_tskey more predictable in error path 
When SOF_TIMESTAMPING_OPT_ID is used to ambiguate timestamped datagrams,
the sk_tskey can become unpredictable in case of any error happened
during sendmsg(). Move increment later in the code and make decrement of
sk_tskey in error path. This solution is still racy in case of multiple
threads doing snedmsg() over the very same socket in parallel, but still
makes error path much more predictable.

Fixes: 09c2d251b7 ("net-timestamp: add key to disambiguate concurrent datagrams")
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240213110428.1681540-1-vadfed@meta.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 		2024-02-15 12:04:04 +01:00
..
netfilter netfilter: bridge: replace physindev with physinif in nf_bridge_info 2024-01-17 12:02:49 +01:00
Kconfig net/tcp: Add TCP-AO config and structures 2023-10-27 10:35:44 +01:00
Makefile bpfilter: remove bpfilter 2024-01-04 10:23:10 -08:00
af_inet.c inet: read sk->sk_family once in inet_recv_error() 2024-02-04 16:06:53 +00:00
ah4.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
arp.c neighbour: annotate lockless accesses to n->nud_state 2023-03-15 00:37:32 -07:00
bpf_tcp_ca.c Revert BPF token-related functionality 2023-12-19 08:23:03 -08:00
cipso_ipv4.c inet: move inet->is_icsk to inet->inet_flags 2023-08-16 11:09:17 +01:00
datagram.c inet: implement lockless getsockopt(IP_MULTICAST_IF) 2023-10-01 19:39:19 +01:00
devinet.c net: ipv4: fix one memleak in __inet_del_ifa() 2023-09-08 08:02:17 +01:00
esp4.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
esp4_offload.c xfrm: Support GRO for IPv4 ESP in UDP encapsulation 2023-10-06 07:30:40 +02:00
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
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fib_rules.c fib: remove unnecessary input parameters in fib_default_rule_add 2024-01-03 16:42:48 -08:00
fib_semantics.c ipv4: fib: annotate races around nh->nh_saddr_genid and nh->nh_saddr 2023-10-18 18:11:31 -07:00
fib_trie.c Kill sched.h dependency on rcupdate.h 2023-12-27 11:50:20 -05:00
fou_bpf.c bpf: Add __bpf_kfunc_{start,end}_defs macros 2023-11-01 22:33:53 -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
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gre_offload.c net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
icmp.c xfrm: pass struct net to xfrm_decode_session wrappers 2023-10-06 08:31:53 +02:00
igmp.c ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet 2023-11-24 15:25:56 +00:00
inet_connection_sock.c tcp: make sure init the accept_queue's spinlocks once 2024-01-19 21:13:25 -08:00
inet_diag.c tcp: Link sk and twsk to tb2->owners using skc_bind_node. 2023-12-22 22:15:35 +00:00
inet_fragment.c
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inet_hashtables.c tcp: Remove dead code and fields for bhash2. 2023-12-22 22:15:35 +00:00
inet_timewait_sock.c tcp: Link sk and twsk to tb2->owners using skc_bind_node. 2023-12-22 22:15:35 +00:00
inetpeer.c
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ip_forward.c net: fix IPSTATS_MIB_OUTFORWDATAGRAMS increment after fragment check 2023-10-13 09:58:45 -07:00
ip_fragment.c networking: Update to register_net_sysctl_sz 2023-08-15 15:26:18 -07:00
ip_gre.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
ip_input.c ipv4: ignore dst hint for multipath routes 2023-09-01 08:11:51 +01:00
ip_options.c
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ip_output.c net-timestamp: make sk_tskey more predictable in error path 2024-02-15 12:04:04 +01:00
ip_sockglue.c ipmr: fix kernel panic when forwarding mcast packets 2024-01-26 21:05:26 -08:00
ip_tunnel.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
ip_tunnel_core.c tunnels: fix out of bounds access when building IPv6 PMTU error 2024-02-03 12:43:19 +00:00
ip_vti.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
ipcomp.c
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ipconfig.c net: ipconfig: move ic_nameservers_fallback into #ifdef block 2023-05-22 11:17:55 +01:00
ipip.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
ipmr.c ipmr: fix kernel panic when forwarding mcast packets 2024-01-26 21:05:26 -08:00
ipmr_base.c
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metrics.c
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netfilter.c xfrm: pass struct net to xfrm_decode_session wrappers 2023-10-06 08:31:53 +02:00
netlink.c
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nexthop.c nexthop: Do not increment dump sentinel at the end of the dump 2023-08-15 18:54:53 -07:00
ping.c bpf-next-for-netdev 2023-10-16 21:05:33 -07:00
proc.c net/tcp: Ignore specific ICMPs for TCP-AO connections 2023-10-27 10:35:45 +01:00
protocol.c
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raw.c ipmr: fix kernel panic when forwarding mcast packets 2024-01-26 21:05:26 -08:00
raw_diag.c net: fill in MODULE_DESCRIPTION()s for SOCK_DIAG modules 2023-11-19 20:09:13 +00:00
route.c ipv4: Correct/silence an endian warning in __ip_do_redirect 2023-11-21 12:55:22 +01:00
syncookies.c tcp: Factorise cookie-dependent fields initialisation in cookie_v[46]_check() 2023-11-29 20:16:38 -08:00
sysctl_net_ipv4.c Use READ/WRITE_ONCE() for IP local_port_range. 2023-12-08 10:44:42 -08:00
tcp.c tcp: move tp->scaling_ratio to tcp_sock_read_txrx group 2024-02-12 09:51:26 +00:00
tcp_ao.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-07 17:53:17 -08:00
tcp_bbr.c net: implement lockless SO_MAX_PACING_RATE 2023-10-01 19:09:54 +01:00
tcp_bic.c
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tcp_bpf.c tcp_bpf: properly release resources on error paths 2023-10-18 18:09:31 -07:00
tcp_cdg.c
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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
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tcp_diag.c net: fill in MODULE_DESCRIPTION()s for SOCK_DIAG modules 2023-11-19 20:09:13 +00:00
tcp_fastopen.c inet: move inet->defer_connect to inet->inet_flags 2023-08-16 11:09:18 +01:00
tcp_highspeed.c
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tcp_htcp.c
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tcp_hybla.c
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tcp_illinois.c
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tcp_input.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-12-14 17:14:41 -08:00
tcp_ipv4.c tcp: Revert no longer abort SYN_SENT when receiving some ICMP 2024-01-08 19:08:51 -08:00
tcp_lp.c tcp: rename tcp_time_stamp() to tcp_time_stamp_ts() 2023-10-23 09:35:01 +01:00
tcp_metrics.c tcp_metrics: optimize tcp_metrics_flush_all() 2023-10-03 10:05:22 +02:00
tcp_minisocks.c net/tcp: Consistently align TCP-AO option in the header 2023-12-06 12:36:55 +01:00
tcp_nv.c
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tcp_offload.c net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
tcp_output.c net: Remove acked SYN flag from packet in the transmit queue correctly 2023-12-12 15:56:02 -08:00
tcp_plb.c
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tcp_rate.c
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tcp_recovery.c tcp: fix excessive TLP and RACK timeouts from HZ rounding 2023-10-17 17:25:42 -07:00
tcp_scalable.c
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tcp_sigpool.c net/tcp_sigpool: Use kref_get_unless_zero() 2024-01-01 14:42:05 +00:00
tcp_timer.c tcp: use tp->total_rto to track number of linear timeouts in SYN_SENT state 2023-11-16 23:35:12 +00:00
tcp_ulp.c
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tcp_vegas.c
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tcp_vegas.h
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tcp_veno.c
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tcp_westwood.c
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tcp_yeah.c
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tunnel4.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
udp.c ipmr: fix kernel panic when forwarding mcast packets 2024-01-26 21:05:26 -08:00
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 net: fill in MODULE_DESCRIPTION()s for SOCK_DIAG modules 2023-11-19 20:09:13 +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 2023-09-14 16:16:36 +02:00
udp_tunnel_core.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00
udp_tunnel_nic.c udp_tunnel: Use flex array to simplify code 2023-10-03 11:39:34 +02:00
udp_tunnel_stub.c
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udplite.c udplite: remove UDPLITE_BIT 2023-09-14 16:16:36 +02:00
xfrm4_input.c xfrm Fix use after free in __xfrm6_udp_encap_rcv. 2023-10-23 07:10:39 +02:00
xfrm4_output.c
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xfrm4_policy.c sysctl-6.6-rc1 2023-08-29 17:39:15 -07:00
xfrm4_protocol.c
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xfrm4_state.c
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xfrm4_tunnel.c net: fill in MODULE_DESCRIPTION()s for ipv4 modules 2024-02-09 14:12:02 -08:00