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Eric Dumazet 2fad5b6948 tcp: make tcp_read_sock() more robust 
[ Upstream commit e3d5ea2c011ecb16fb94c56a659364e6b30fac94 ]

If recv_actor() returns an incorrect value, tcp_read_sock()
might loop forever.

Instead, issue a one time warning and make sure to make progress.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20220302161723.3910001-2-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-03-19 13:44:46 +01:00
..
bpfilter
net: Revert "net: optimize the sockptr_t for unified kernel/user address spaces"
2020-08-10 12:06:44 -07:00
netfilter
netfilter: ipt_CLUSTERIP: fix refcount leak in clusterip_tg_check()
2022-01-27 10:54:00 +01:00
af_inet.c
gso: do not skip outer ip header in case of ipip and net_failover
2022-03-02 11:42:49 +01:00
ah4.c
xfrm: Use actual socket sk instead of skb socket for xfrm_output_resume
2021-04-14 08:42:05 +02:00
arp.c
net: Exempt multicast addresses from five-second neighbor lifetime
2020-11-13 14:24:39 -08:00
bpf_tcp_ca.c
bpf: Change bpf_sk_storage_*() to accept ARG_PTR_TO_BTF_ID_SOCK_COMMON
2020-09-25 13:58:01 -07:00
cipso_ipv4.c
net: ipv4: fix memory leak in netlbl_cipsov4_add_std
2021-06-23 14:42:41 +02:00
datagram.c
inet: stop leaking jiffies on the wire
2019-11-01 14:57:52 -07:00
devinet.c
net: return correct error code
2021-12-08 09:03:18 +01:00
esp4_offload.c
esp: Fix BEET mode inter address family tunneling on GSO
2022-03-16 14:15:57 +01:00
esp4.c
Revert "xfrm: xfrm_state_mtu should return at least 1280 for ipv6"
2022-03-08 19:09:38 +01:00
fib_frontend.c
ipv4: convert fib_num_tclassid_users to atomic_t
2021-12-08 09:03:26 +01:00
fib_lookup.h
net: add net available in build_state
2020-03-29 22:30:57 -07:00
fib_notifier.c
…
fib_rules.c
ipv4: convert fib_num_tclassid_users to atomic_t
2021-12-08 09:03:26 +01:00
fib_semantics.c
ipv4: avoid quadratic behavior in netns dismantle
2022-01-27 10:54:31 +01:00
fib_trie.c
ipv4: Silence suspicious RCU usage warning
2020-08-26 15:58:48 -07:00
fou.c
genetlink: move to smaller ops wherever possible
2020-10-02 19:11:11 -07:00
gre_demux.c
erspan: fix version 1 check in gre_parse_header()
2021-01-12 20:18:12 +01:00
gre_offload.c
net: gre: recompute gre csum for sctp over gre tunnels
2020-08-03 15:29:44 -07:00
icmp.c
icmp: don't send out ICMP messages with a source address of 0.0.0.0
2021-06-23 14:42:47 +02:00
igmp.c
igmp: Add ip_mc_list lock in ip_check_mc_rcu
2021-09-12 08:58:26 +02:00
inet_connection_sock.c
tcp: switch orphan_count to bare per-cpu counters
2021-11-18 14:04:08 +01:00
inet_diag.c
inet_diag: fix kernel-infoleak for UDP sockets
2021-12-22 09:30:53 +01:00
inet_fragment.c
inet: frags: annotate races around fqdir->dead and fqdir->high_thresh
2022-01-27 10:54:33 +01:00
inet_hashtables.c
tcp: switch orphan_count to bare per-cpu counters
2021-11-18 14:04:08 +01:00
inet_timewait_sock.c
…
inetpeer.c
inetpeer: fix data-race in inet_putpeer / inet_putpeer
2019-11-07 16:15:56 -08:00
ip_forward.c
…
ip_fragment.c
inet: frags: annotate races around fqdir->dead and fqdir->high_thresh
2022-01-27 10:54:33 +01:00
ip_gre.c
gre: Don't accidentally set RTO_ONLINK in gre_fill_metadata_dst()
2022-01-27 10:54:33 +01:00
ip_input.c
bpf: Add socket assign support
2020-03-30 13:45:04 -07:00
ip_options.c
net: clean up codestyle for net/ipv4
2020-08-25 06:28:02 -07:00
ip_output.c
ipv4: tcp: send zero IPID in SYNACK messages
2022-02-01 17:25:47 +01:00
ip_sockglue.c
net: Remove duplicated midx check against 0
2020-08-25 06:23:59 -07:00
ip_tunnel_core.c
tunnels: Fix off-by-one in lower MTU bounds for ICMP/ICMPv6 replies
2020-11-09 15:39:39 -08:00
ip_tunnel.c
net: Set true network header for ECN decapsulation
2021-08-04 12:46:42 +02:00
ip_vti.c
net: always use icmp{,v6}_ndo_send from ndo_start_xmit
2021-03-17 17:06:12 +01:00
ipcomp.c
ipcomp: assign if_id to child tunnel from parent tunnel
2020-07-09 12:55:37 +02:00
ipconfig.c
net: ipconfig: Don't override command-line hostnames or domains
2021-06-18 10:00:05 +02:00
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
ipmr,ip6mr: acquire RTNL before calling ip[6]mr_free_table() on failure path
2022-02-16 12:54:25 +01:00
Kconfig
net: ipv4: remove duplicate "the the" phrase in Kconfig text
2020-08-18 16:02:16 -07:00
Makefile
udp_tunnel: add central NIC RX port offload infrastructure
2020-07-10 13:54:00 -07:00
metrics.c
…
netfilter.c
netfilter: use actual socket sk rather than skb sk when routing harder
2020-10-30 12:57:39 +01:00
netlink.c
…
nexthop.c
net: nexthop: release IPv6 per-cpu dsts when replacing a nexthop group
2021-12-01 09:19:05 +01:00
ping.c
ping: remove pr_err from ping_lookup
2022-03-02 11:42:48 +01:00
proc.c
tcp: switch orphan_count to bare per-cpu counters
2021-11-18 14:04:08 +01:00
protocol.c
…
raw_diag.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-03-12 22:34:48 -07:00
raw.c
ipv4: raw: lock the socket in raw_bind()
2022-02-01 17:25:47 +01:00
route.c
ipv4: fix endianness issue in inet_rtm_getroute_build_skb()
2021-09-15 09:50:46 +02:00
syncookies.c
net: Update window_clamp if SOCK_RCVBUF is set
2020-11-10 17:42:35 -08:00
sysctl_net_ipv4.c
net: Make tcp_allowed_congestion_control readonly in non-init netns
2021-04-21 13:00:57 +02:00
tcp_bbr.c
tcp_bbr: fix u32 wrap bug in round logic if bbr_init() called after 2B packets
2021-08-18 08:59:13 +02:00
tcp_bic.c
tcp: fix stretch ACK bugs in BIC
2020-03-16 18:26:54 -07:00
tcp_bpf.c
bpf, sockmap: Remove unhash handler for BPF sockmap usage
2021-11-18 14:04:27 +01:00
tcp_cdg.c
…
tcp_cong.c
net: Only allow init netns to set default tcp cong to a restricted algo
2021-05-14 09:50:46 +02:00
tcp_cubic.c
tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows
2021-12-01 09:19:06 +01:00
tcp_dctcp.c
…
tcp_dctcp.h
…
tcp_diag.c
inet_diag: Move the INET_DIAG_REQ_BYTECODE nlattr to cb->data
2020-02-27 18:50:19 -08:00
tcp_fastopen.c
tcp: enable data-less, empty-cookie SYN with TFO_SERVER_COOKIE_NOT_REQD
2021-09-18 13:40:29 +02:00
tcp_highspeed.c
Replace HTTP links with HTTPS ones: IPv*
2020-07-06 13:23:03 -07:00
tcp_htcp.c
Replace HTTP links with HTTPS ones: IPv*
2020-07-06 13:23:03 -07:00
tcp_hybla.c
…
tcp_illinois.c
…
tcp_input.c
tcp: add missing tcp_skb_can_collapse() test in tcp_shift_skb_data()
2022-02-05 12:37:57 +01:00
tcp_ipv4.c
tcp: md5: Fix overlap between vrf and non-vrf keys
2021-10-27 09:56:48 +02:00
tcp_lp.c
…
tcp_metrics.c
genetlink: move to smaller ops wherever possible
2020-10-02 19:11:11 -07:00
tcp_minisocks.c
tcp: relookup sock for RST+ACK packets handled by obsolete req sock
2021-03-30 14:31:59 +02:00
tcp_nv.c
…
tcp_offload.c
net, gro: Set inner transport header offset in tcp/udp GRO hook
2021-08-12 13:22:05 +02:00
tcp_output.c
ipv6: tcp: drop silly ICMPv6 packet too big messages
2021-07-25 14:36:21 +02:00
tcp_rate.c
…
tcp_recovery.c
tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN
2021-02-03 23:28:52 +01:00
tcp_scalable.c
net: ipv4: delete repeated words
2020-08-24 17:31:20 -07:00
tcp_timer.c
tcp: make TCP_USER_TIMEOUT accurate for zero window probes
2021-02-03 23:28:51 +01:00
tcp_ulp.c
bpf: sockmap: Only check ULP for TCP sockets
2020-03-09 22:34:58 +01:00
tcp_vegas.c
tcp: use semicolons rather than commas to separate statements
2020-10-13 17:11:52 -07:00
tcp_vegas.h
…
tcp_veno.c
Replace HTTP links with HTTPS ones: IPv*
2020-07-06 13:23:03 -07:00
tcp_westwood.c
…
tcp_yeah.c
tcp: fix stretch ACK bugs in Yeah
2020-03-16 18:26:55 -07:00
tcp.c
tcp: make tcp_read_sock() more robust
2022-03-19 13:44:46 +01:00
tunnel4.c
tunnel4: add cb_handler to struct xfrm_tunnel
2020-07-09 12:51:36 +02:00
udp_bpf.c
bpf, sockmap, udp: sk_prot needs inuse_idx set for proc stats
2021-07-28 14:35:37 +02:00
udp_diag.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-03-12 22:34:48 -07:00
udp_impl.h
net: pass a sockptr_t into ->setsockopt
2020-07-24 15:41:54 -07:00
udp_offload.c
net, gro: Set inner transport header offset in tcp/udp GRO hook
2021-08-12 13:22:05 +02:00
udp_tunnel_core.c
udp_tunnel: add central NIC RX port offload infrastructure
2020-07-10 13:54:00 -07:00
udp_tunnel_nic.c
udp_tunnel: Fix end of loop test in udp_tunnel_nic_unregister()
2022-03-02 11:42:51 +01:00
udp_tunnel_stub.c
udp_tunnel: add central NIC RX port offload infrastructure
2020-07-10 13:54:00 -07:00
udp.c
net: udp: fix alignment problem in udp4_seq_show()
2022-01-11 15:25:02 +01:00
udplite.c
net/ipv4: remove compat_ip_{get,set}sockopt
2020-07-19 18:16:41 -07:00
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
net: add bool confirm_neigh parameter for dst_ops.update_pmtu
2019-12-24 22:28:54 -08:00
xfrm4_protocol.c
xfrm: add route lookup to xfrm4_rcv_encap
2019-12-09 09:59:07 +01:00
xfrm4_state.c
xfrm: remove output_finish indirection from xfrm_state_afinfo
2020-05-06 09:40:08 +02:00
xfrm4_tunnel.c
xfrm: interface: fix the priorities for ipip and ipv6 tunnels
2020-10-09 12:29:48 +02:00