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android_kernel_asus_sm8350/net/ipv4
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ZhangXiaoxu 19fad20d15 ipv4: set the tcp_min_rtt_wlen range from 0 to one day 
There is a UBSAN report as below:
UBSAN: Undefined behaviour in net/ipv4/tcp_input.c:2877:56
signed integer overflow:
2147483647 * 1000 cannot be represented in type 'int'
CPU: 3 PID: 0 Comm: swapper/3 Not tainted 5.1.0-rc4-00058-g582549e #1
Call Trace:
 <IRQ>
 dump_stack+0x8c/0xba
 ubsan_epilogue+0x11/0x60
 handle_overflow+0x12d/0x170
 ? ttwu_do_wakeup+0x21/0x320
 __ubsan_handle_mul_overflow+0x12/0x20
 tcp_ack_update_rtt+0x76c/0x780
 tcp_clean_rtx_queue+0x499/0x14d0
 tcp_ack+0x69e/0x1240
 ? __wake_up_sync_key+0x2c/0x50
 ? update_group_capacity+0x50/0x680
 tcp_rcv_established+0x4e2/0xe10
 tcp_v4_do_rcv+0x22b/0x420
 tcp_v4_rcv+0xfe8/0x1190
 ip_protocol_deliver_rcu+0x36/0x180
 ip_local_deliver+0x15b/0x1a0
 ip_rcv+0xac/0xd0
 __netif_receive_skb_one_core+0x7f/0xb0
 __netif_receive_skb+0x33/0xc0
 netif_receive_skb_internal+0x84/0x1c0
 napi_gro_receive+0x2a0/0x300
 receive_buf+0x3d4/0x2350
 ? detach_buf_split+0x159/0x390
 virtnet_poll+0x198/0x840
 ? reweight_entity+0x243/0x4b0
 net_rx_action+0x25c/0x770
 __do_softirq+0x19b/0x66d
 irq_exit+0x1eb/0x230
 do_IRQ+0x7a/0x150
 common_interrupt+0xf/0xf
 </IRQ>

It can be reproduced by:
  echo 2147483647 > /proc/sys/net/ipv4/tcp_min_rtt_wlen

Fixes: f672258391b42 ("tcp: track min RTT using windowed min-filter")
Signed-off-by: ZhangXiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-17 13:57:11 -07:00
..
bpfilter
net: bpfilter: disallow to remove bpfilter module while being used
2019-01-11 18:05:41 -08:00
netfilter
netfilter: nf_tables: merge ipv4 and ipv6 nat chain types
2019-03-01 14:36:59 +01:00
af_inet.c
gso: validate gso_type on ipip style tunnels
2019-02-20 11:24:27 -08:00
ah4.c
net-ipv4: remove 2 always zero parameters from ipv4_redirect()
2018-09-26 20:30:55 -07:00
arp.c
net: Evict neighbor entries on carrier down
2018-10-12 09:47:39 -07:00
cipso_ipv4.c
netlabel: fix out-of-bounds memory accesses
2019-02-27 21:45:24 -08:00
datagram.c
ipv4: Allow sending multicast packets on specific i/f using VRF socket
2018-10-02 22:28:17 -07:00
devinet.c
net: ignore sysctl_devconf_inherit_init_net without SYSCTL
2019-03-04 13:14:34 -08:00
esp4_offload.c
net: use skb_sec_path helper in more places
2018-12-19 11:21:37 -08:00
esp4.c
esp: Skip TX bytes accounting when sending from a request socket
2019-01-28 11:20:58 +01:00
fib_frontend.c
ipv4: Return error for RTA_VIA attribute
2019-02-26 13:23:17 -08:00
fib_lookup.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_notifier.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_rules.c
ipv4: fib_rules: Fix possible infinite loop in fib_empty_table
2018-12-30 12:57:04 -08:00
fib_semantics.c
ipv4: fib: use struct_size() in kzalloc()
2019-02-01 15:12:29 -08:00
fib_trie.c
net: ipv4: Fix memory leak in network namespace dismantle
2019-01-15 13:33:44 -08:00
fou.c
net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv
2019-04-10 23:02:23 -07:00
gre_demux.c
net: ip_gre: use erspan key field for tunnel lookup
2019-01-22 11:52:17 -08:00
gre_offload.c
Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net
2018-07-03 10:29:26 +09:00
icmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-03-02 12:54:35 -08:00
igmp.c
net: remove unneeded switch fall-through
2019-02-21 13:48:00 -08:00
inet_connection_sock.c
inet: minor optimization for backlog setting in listen(2)
2018-11-07 22:31:07 -08:00
inet_diag.c
inet_diag: fix reporting cgroup classid and fallback to priority
2019-02-12 13:35:57 -05:00
inet_fragment.c
net: remove unused struct inet_frag_queue.fragments field
2019-02-26 08:27:05 -08:00
inet_hashtables.c
net: dccp: fix kernel crash on module load
2018-12-24 15:27:56 -08:00
inet_timewait_sock.c
soreuseport: initialise timewait reuseport field
2018-04-07 22:32:32 -04:00
inetpeer.c
net: ipv4: use a dedicated counter for icmp_v4 redirect packets
2019-02-08 21:50:15 -08:00
ip_forward.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-12-20 11:53:36 -08:00
ip_fragment.c
net: remove unused struct inet_frag_queue.fragments field
2019-02-26 08:27:05 -08:00
ip_gre.c
net: ip_gre: fix possible use-after-free in erspan_rcv
2019-04-08 16:16:47 -07:00
ip_input.c
vrf: check accept_source_route on the original netdevice
2019-04-01 10:44:58 -07:00
ip_options.c
vrf: check accept_source_route on the original netdevice
2019-04-01 10:44:58 -07:00
ip_output.c
sk_buff: add skb extension infrastructure
2018-12-19 11:21:37 -08:00
ip_sockglue.c
ip: on queued skb use skb_header_pointer instead of pskb_may_pull
2019-01-10 09:27:20 -05:00
ip_tunnel_core.c
ip_tunnel: Add dst_cache support in lwtunnel_state of ip tunnel
2019-02-24 22:13:49 -08:00
ip_tunnel.c
iptunnel: NULL pointer deref for ip_md_tunnel_xmit
2019-03-06 10:43:06 -08:00
ip_vti.c
vti4: Fix a ipip packet processing bug in 'IPCOMP' virtual tunnel
2019-01-09 14:00:37 +01:00
ipcomp.c
net-ipv4: remove 2 always zero parameters from ipv4_redirect()
2018-09-26 20:30:55 -07:00
ipconfig.c
ipconfig: add carrier_timeout kernel parameter
2019-02-01 15:24:13 -08:00
ipip.c
ip_tunnel: Add tnl_update_pmtu in ip_md_tunnel_xmit
2019-01-26 09:43:03 -08:00
ipmr_base.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-10-19 11:03:06 -07:00
ipmr.c
ipmr: ip6mr: Create new sockopt to clear mfc cache or vifs
2019-02-21 13:05:05 -08:00
Kconfig
net: remove blank lines at end of file
2018-07-24 14:10:43 -07:00
Makefile
bpf, sockmap: convert to generic sk_msg interface
2018-10-15 12:23:19 -07:00
metrics.c
net: Add extack argument to ip_fib_metrics_init
2018-11-06 15:00:45 -08:00
netfilter.c
netfilter: ipv4: remove useless export_symbol
2019-01-28 11:32:58 +01:00
netlink.c
ipv4: Add ICMPv6 support when parse route ipproto
2019-03-01 16:41:27 -08:00
ping.c
ipv4: Allow sending multicast packets on specific i/f using VRF socket
2018-10-02 22:28:17 -07:00
proc.c
tcp: implement coalescing on backlog queue
2018-11-30 13:26:54 -08:00
protocol.c
fou, fou6: ICMP error handlers for FoU and GUE
2018-11-08 17:13:08 -08:00
raw_diag.c
net: ipv6: add second dif to raw socket lookups
2017-08-07 11:39:22 -07:00
raw.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-12-20 11:53:36 -08:00
route.c
ipv4: ensure rcu_read_lock() in ipv4_link_failure()
2019-04-14 13:43:17 -07:00
syncookies.c
tcp: handle inet_csk_reqsk_queue_add() failures
2019-03-08 16:05:10 -08:00
sysctl_net_ipv4.c
ipv4: set the tcp_min_rtt_wlen range from 0 to one day
2019-04-17 13:57:11 -07:00
tcp_bbr.c
tcp_bbr: adapt cwnd based on ack aggregation estimation
2019-01-24 22:27:27 -08:00
tcp_bic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_bpf.c
bpf: sk_msg, sock{map|hash} redirect through ULP
2018-12-20 23:47:09 +01:00
tcp_cdg.c
tcp: cdg: use tcp high resolution clock cache
2018-10-15 22:56:42 -07:00
tcp_cong.c
tcp: Namespace-ify sysctl_tcp_default_congestion_control
2017-11-15 14:09:52 +09:00
tcp_cubic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_dctcp.c
dctcp: more accurate tracking of packets delivery
2019-04-11 21:31:03 -07:00
tcp_dctcp.h
tcp: refactor DCTCP ECN ACK handling
2018-10-10 22:26:00 -07:00
tcp_diag.c
net: sock: replace sk_state_load with inet_sk_state_load and remove sk_state_store
2017-12-20 14:00:25 -05:00
tcp_fastopen.c
tcp: pause Fast Open globally after third consecutive timeout
2017-12-13 15:51:12 -05:00
tcp_highspeed.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_htcp.c
tcp: fix cwnd undo in Reno and HTCP congestion controls
2017-08-06 21:25:10 -07:00
tcp_hybla.c
tcp: make undo_cwnd mandatory for congestion modules
2016-11-21 13:20:17 -05:00
tcp_illinois.c
net/tcp/illinois: replace broken algorithm reference link
2018-02-28 12:03:47 -05:00
tcp_input.c
tcp: tcp_grow_window() needs to respect tcp_space()
2019-04-16 21:47:39 -07:00
tcp_ipv4.c
tcp: fix a potential NULL pointer dereference in tcp_sk_exit
2019-04-01 10:11:41 -07:00
tcp_lp.c
tcp: switch TCP TS option (RFC 7323) to 1ms clock
2017-05-17 16:06:01 -04:00
tcp_metrics.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
tcp_minisocks.c
tcp: use tcp_md5_needed for timewait sockets
2019-02-26 13:16:03 -08:00
tcp_nv.c
tcp_nv: fix potential integer overflow in tcpnv_acked
2018-01-31 10:26:30 -05:00
tcp_offload.c
net: use indirect call wrappers at GRO transport layer
2018-12-15 13:23:02 -08:00
tcp_output.c
tcp: remove tcp_queue argument from tso_fragment()
2019-02-26 13:16:03 -08:00
tcp_rate.c
tcp: introduce tcp_skb_timestamp_us() helper
2018-09-21 19:37:59 -07:00
tcp_recovery.c
tcp: introduce tcp_skb_timestamp_us() helper
2018-09-21 19:37:59 -07:00
tcp_scalable.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_timer.c
tcp: Refactor pingpong code
2019-01-27 13:29:43 -08:00
tcp_ulp.c
tcp, ulp: remove socket lock assertion on ULP cleanup
2018-10-16 12:38:41 -07:00
tcp_vegas.c
tcp: fix under-evaluated ssthresh in TCP Vegas
2017-09-29 06:07:00 +01:00
tcp_vegas.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_veno.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_westwood.c
tcp: Revert "tcp: remove CA_ACK_SLOWPATH"
2017-08-30 11:20:08 -07:00
tcp_yeah.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp.c
tcp: do not report TCP_CM_INQ of 0 for closed connections
2019-03-06 11:00:50 -08:00
tunnel4.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
udp_diag.c
net: diag: document swapped src/dst in udp_dump_one.
2018-10-28 19:27:21 -07:00
udp_impl.h
udp: add missing rehash callback to udplite
2019-01-17 15:01:08 -08:00
udp_offload.c
udp: use indirect call wrappers for GRO socket lookup
2018-12-15 13:23:02 -08:00
udp_tunnel.c
net/ipv4/udp_tunnel: prefer SO_BINDTOIFINDEX over SO_BINDTODEVICE
2019-01-17 14:55:52 -08:00
udp.c
udp: fix possible user after free in error handler
2019-02-22 16:05:11 -08:00
udplite.c
udp: add missing rehash callback to udplite
2019-01-17 15:01:08 -08:00
xfrm4_input.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm4_mode_beet.c
networking: make skb_pull & friends return void pointers
2017-06-16 11:48:39 -04:00
xfrm4_mode_transport.c
xfrm: reset transport header back to network header after all input transforms ahave been applied
2018-09-04 10:26:30 +02:00
xfrm4_mode_tunnel.c
xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto
2018-03-07 10:54:29 +01:00
xfrm4_output.c
net: xfrm: use skb_gso_validate_network_len() to check gso sizes
2018-03-04 17:49:17 -05:00
xfrm4_policy.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
xfrm4_protocol.c
net: Convert protocol error handlers from void to int
2018-11-08 17:13:08 -08:00
xfrm4_state.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xfrm4_tunnel.c
…