Eric Dumazet 3308676ec5 tcp: add accessors to read/set tp->snd_cwnd ... [ Upstream commit 4057037535 ] We had various bugs over the years with code breaking the assumption that tp->snd_cwnd is greater than zero. Lately, syzbot reported the WARN_ON_ONCE(!tp->prior_cwnd) added in commit 8b8a321ff7 ("tcp: fix zero cwnd in tcp_cwnd_reduction") can trigger, and without a repro we would have to spend considerable time finding the bug. Instead of complaining too late, we want to catch where and when tp->snd_cwnd is set to an illegal value. Signed-off-by: Eric Dumazet <edumazet@google.com> Suggested-by: Yuchung Cheng <ycheng@google.com> Cc: Neal Cardwell <ncardwell@google.com> Acked-by: Yuchung Cheng <ycheng@google.com> Link: https://lore.kernel.org/r/20220405233538.947344-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-14 18:36:11 +02:00
..
ila	net: Add MODULE_DESCRIPTION entries to network modules	2020-06-20 21:33:57 -07:00
netfilter	netfilter: ip6t_rt: fix rt0_hdr parsing in rt_mt6	2021-10-14 23:08:35 +02:00
addrconf_core.c	ipv6: add ipv6_dev_find to stubs	2021-03-30 13:29:39 -07:00
addrconf.c	ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL	2022-06-09 10:22:35 +02:00
addrlabel.c	ipv6: addrlabel: fix possible memory leak in ip6addrlbl_net_init	2020-11-25 11:20:16 -08:00
af_inet6.c	net: ipv6: add fib6_nh_release_dsts stub	2021-12-01 09:04:49 +01:00
ah6.c	xfrm: remove hdr_offset indirection	2021-06-11 14:48:50 +02:00
anycast.c	ipv6: fix memory leaks on IPV6_ADDRFORM path	2020-07-30 16:30:55 -07:00
calipso.c	cipso,calipso: resolve a number of problems with the DOI refcounts	2021-03-04 15:26:57 -08:00
datagram.c	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
esp6_offload.c	esp: Fix BEET mode inter address family tunneling on GSO	2022-03-16 14:23:36 +01:00
esp6.c	esp: limit skb_page_frag_refill use to a single page	2022-04-27 14:38:52 +02:00
exthdrs_core.c
exthdrs_offload.c
exthdrs.c	ipv6: exthdrs: get rid of indirect calls in ip6_parse_tlv()	2021-08-04 10:34:40 +01:00
fib6_notifier.c
fib6_rules.c	ipv6: fix memory leak in fib6_rule_suppress	2021-12-08 09:04:43 +01:00
fou6.c	net: Add MODULE_DESCRIPTION entries to network modules	2020-06-20 21:33:57 -07:00
icmp.c	icmp: ICMPV6: Examine invoking packet for Segment Route Headers.	2022-01-27 11:05:05 +01:00
inet6_connection_sock.c	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
inet6_hashtables.c	secure_seq: use the 64 bits of the siphash for port offset calculation	2022-05-18 10:26:53 +02:00
ioam6_iptunnel.c	ipv6: ioam: move the check for undefined bits	2021-10-12 11:49:49 +01:00
ioam6.c	ipv6: ioam: move the check for undefined bits	2021-10-12 11:49:49 +01:00
ip6_checksum.c
ip6_fib.c	ipv6: annotate accesses to fn->fn_sernum	2022-02-01 17:27:09 +01:00
ip6_flowlabel.c	ipv6: per-netns exclusive flowlabel checks	2022-02-23 12:03:10 +01:00
ip6_gre.c	ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode	2022-05-09 09:14:36 +02:00
ip6_icmp.c	net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending	2021-02-23 11:29:52 -08:00
ip6_input.c	ipv6: make mc_forwarding atomic	2022-04-13 20:59:03 +02:00
ip6_offload.c	gso: do not skip outer ip header in case of ipip and net_failover	2022-03-02 11:47:56 +01:00
ip6_offload.h
ip6_output.c	ipv6: fix panic when forwarding a pkt with no in6 dev	2022-04-20 09:34:19 +02:00
ip6_tunnel.c	ipv6_tunnel: Rate limit warning messages	2022-02-01 17:27:07 +01:00
ip6_udp_tunnel.c	net: Make locking in sock_bindtoindex optional	2020-06-01 14:57:14 -07:00
ip6_vti.c	ip6_vti: initialize __ip6_tnl_parm struct in vti6_siocdevprivate	2022-01-11 15:35:17 +01:00
ip6mr.c	ipv6: make mc_forwarding atomic	2022-04-13 20:59:03 +02:00
ipcomp6.c	xfrm: remove hdr_offset indirection	2021-06-11 14:48:50 +02:00
ipv6_sockglue.c	net/ipv4/ipv6: Replace one-element arraya with flexible-array members	2021-08-05 11:46:42 +01:00
Kconfig	ipv6: ioam: Support for IOAM injection with lwtunnels	2021-07-21 08:14:33 -07:00
Makefile	ipv6: ioam: Support for IOAM injection with lwtunnels	2021-07-21 08:14:33 -07:00
mcast_snoop.c	net: bridge: mcast: fix broken length + header check for MRDv6 Adv.	2021-04-27 14:02:06 -07:00
mcast.c	mld: respect RCU rules in ip6_mc_source() and ip6_mc_msfilter()	2022-05-12 12:30:18 +02:00
mip6.c	xfrm: ipv6: move mip6_rthdr_offset into xfrm core	2021-06-11 14:48:50 +02:00
ndisc.c	ipv6: add IFLA_INET6_RA_MTU to expose mtu value	2021-08-27 17:29:18 -07:00
netfilter.c	netfilter: Update ip6_route_me_harder to consider L3 domain	2022-05-09 09:14:41 +02:00
output_core.c	ipv6: use prandom_u32() for ID generation	2021-05-31 22:12:08 -07:00
ping.c	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
proc.c	net: udp: introduce UDP_MIB_MEMERRORS for udp_mem	2020-11-09 15:34:44 -08:00
protocol.c
raw.c	ipv6: raw: check passed optlen before reading	2022-01-11 15:35:18 +01:00
reassembly.c	ipv6: record frag_max_size in atomic fragments in input path	2021-05-21 15:02:25 -07:00
route.c	ipv6: make ip6_rt_gc_expire an atomic_t	2022-04-27 14:38:54 +02:00
rpl_iptunnel.c	net: ipv6: rpl_iptunnel: simplify the return expression of rpl_do_srh()	2020-12-08 16:22:54 -08:00
rpl.c	net: ipv6: rpl*: Fix strange kerneldoc warnings due to bad header	2020-10-30 12:12:52 -07:00
seg6_hmac.c	crypto: sha - split sha.h into sha1.h and sha2.h	2020-11-20 14:45:33 +11:00
seg6_iptunnel.c	seg6: fix the iif in the IPv6 socket control block	2021-12-14 10:57:09 +01:00
seg6_local.c	seg6: export get_srh() for ICMP handling	2022-01-27 11:05:05 +01:00
seg6.c	icmp: ICMPV6: Examine invoking packet for Segment Route Headers.	2022-01-27 11:05:05 +01:00
sit.c	sit: do not call ipip6_dev_free() from sit_init_net()	2021-12-22 09:32:44 +01:00
syncookies.c	tcp: make sure treq->af_specific is initialized	2022-05-09 09:14:37 +02:00
sysctl_net_ipv6.c	ipv6: ioam: Data plane support for Pre-allocated Trace	2021-07-21 08:14:33 -07:00
tcp_ipv6.c	tcp: add accessors to read/set tp->snd_cwnd	2022-06-14 18:36:11 +02:00
tcpv6_offload.c
tunnel6.c	tunnel6: add tunnel6_input_afinfo for ipip and ipv6 tunnels	2020-07-09 12:52:37 +02:00
udp_impl.h	net: pass a sockptr_t into ->setsockopt	2020-07-24 15:41:54 -07:00
udp_offload.c	udp: properly complete L4 GRO over UDP tunnel packet	2021-03-30 17:06:49 -07:00
udp.c	udp6: Use Segment Routing Header for dest address if present	2022-01-27 11:05:05 +01:00
udplite.c	net/ipv6: remove compat_ipv6_{get,set}sockopt	2020-07-19 18:16:41 -07:00
xfrm6_input.c	xfrm: state: remove extract_input indirection from xfrm_state_afinfo	2020-05-06 09:40:08 +02:00
xfrm6_output.c	xfrm: fix tunnel model fragmentation behavior	2022-04-08 14:22:46 +02:00
xfrm6_policy.c	net: add bool confirm_neigh parameter for dst_ops.update_pmtu	2019-12-24 22:28:54 -08:00
xfrm6_protocol.c	xfrm: add support for UDPv6 encapsulation of ESP	2020-04-28 11:28:36 +02:00
xfrm6_state.c	xfrm: remove output_finish indirection from xfrm_state_afinfo	2020-05-06 09:40:08 +02:00
xfrm6_tunnel.c	xfrm: remove description from xfrm_type struct	2021-06-09 09:38:52 +02:00