Paolo Abeni 481aedf869 ip: fix IP_CHECKSUM handling ...

[ Upstream commit ca4ef4574f ]

The skbs processed by ip_cmsg_recv() are not guaranteed to
be linear e.g. when sending UDP packets over loopback with
MSGMORE.
Using csum_partial() on [potentially] the whole skb len
is dangerous; instead be on the safe side and use skb_checksum().

Thanks to syzkaller team to detect the issue and provide the
reproducer.

v1 -> v2:
 - move the variable declaration in a tighter scope

Fixes: ad6f939ab1 ("ip: Add offset parameter to ip_cmsg_recv")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-02-26 11:10:51 +01:00

..

netfilter

netfilter: arp_tables: fix invoking 32bit "iptable -P INPUT ACCEPT" failed in 64bit kernel

2016-11-30 20:50:23 +01:00

af_inet.c

GSO: Reload iph after pskb_may_pull

2016-11-29 20:45:54 -05:00

ah4.c

…

arp.c

…

cipso_ipv4.c

netlabel: out of bound access in cipso_v4_validate()

2017-02-18 15:11:41 +01:00

datagram.c

…

devinet.c

netconf: add a notif when settings are created

2016-09-01 15:18:08 -07:00

esp4.c

esp4: Fix integrity verification when ESN are used

2016-11-30 11:09:39 +01:00

fib_frontend.c

lwtunnel: fix autoload of lwt modules

2017-02-04 09:47:10 +01:00

fib_lookup.h

…

fib_rules.c

switchdev: remove FIB offload infrastructure

2016-09-28 04:48:00 -04:00

fib_semantics.c

net: lwtunnel: Handle lwtunnel_fill_encap failure

2017-02-04 09:47:08 +01:00

fib_trie.c

ipv4: Drop suffix update from resize code

2016-12-05 13:15:58 -05:00

fou.c

net: add recursion limit to GRO

2016-10-20 14:32:22 -04:00

gre_demux.c

…

gre_offload.c

net: add recursion limit to GRO

2016-10-20 14:32:22 -04:00

icmp.c

net: icmp_route_lookup should use rt dev to determine L3 domain

2016-11-09 18:49:39 -05:00

igmp.c

igmp, mld: Fix memory leak in igmpv3/mld_del_delrec()

2017-02-18 15:11:43 +01:00

inet_connection_sock.c

timers, net/ipv4/inet: Initialize connection request timers as pinned

2016-07-07 10:35:06 +02:00

inet_diag.c

net: inet: diag: expose the socket mark to privileged processes.

2016-09-08 16:13:09 -07:00

inet_fragment.c

…

inet_hashtables.c

net: Require exact match for TCP socket lookups if dif is l3mdev

2016-10-17 10:17:05 -04:00

inet_timewait_sock.c

timers, net/ipv4/inet: Initialize connection request timers as pinned

2016-07-07 10:35:06 +02:00

inetpeer.c

…

ip_forward.c

ipv4: allow local fragmentation in ip_finish_output_gso()

2016-11-03 16:10:26 -04:00

ip_fragment.c

…

ip_gre.c

net/ip_tunnels: Introduce tunnel_id_to_key32() and key32_to_tunnel_id()

2016-09-10 20:53:55 -07:00

ip_input.c

net: VRF: Pass original iif to ip_route_input()

2016-09-16 04:24:07 -04:00

ip_options.c

…

ip_output.c

tcp: fix mark propagation with fwmark_reflect enabled

2017-02-18 15:11:43 +01:00

ip_sockglue.c

ip: fix IP_CHECKSUM handling

2017-02-26 11:10:51 +01:00

ip_tunnel_core.c

net: Specify the owning module for lwtunnel ops

2017-02-04 09:47:11 +01:00

ip_tunnel.c

ip_tunnel: add collect_md mode to IPIP tunnel

2016-09-17 10:13:07 -04:00

ip_vti.c

vti: use right inner_mode for inbound inter address family policy checks

2016-09-09 09:02:08 +02:00

ipcomp.c

…

ipconfig.c

net: ipconfig: Fix NULL pointer dereference on RARP/BOOTP/DHCP timeout

2016-08-22 21:04:41 -07:00

ipip.c

ip_tunnel: add collect_md mode to IPIP tunnel

2016-09-17 10:13:07 -04:00

ipmr.c

ipv4: allow local fragmentation in ip_finish_output_gso()

2016-11-03 16:10:26 -04:00

Kconfig

tcp: Set DEFAULT_TCP_CONG to bbr if DEFAULT_BBR is set

2016-11-28 12:15:00 -05:00

Makefile

tcp_bbr: add BBR congestion control

2016-09-21 00:23:01 -04:00

netfilter.c

netfilter: Update ip_route_me_harder to consider L3 domain

2016-11-24 12:44:36 +01:00

ping.c

ping: fix a null pointer dereference

2017-02-18 15:11:43 +01:00

proc.c

net: Suppress the "Comparison to NULL could be written" warnings

2016-09-30 01:50:45 -04:00

protocol.c

…

raw.c

udp: must lock the socket in udp_disconnect()

2016-10-20 14:45:52 -04:00

route.c

net: ipv4: fix table id in getroute response

2017-02-04 09:47:08 +01:00

syncookies.c

…

sysctl_net_ipv4.c

ipv4: use the right lock for ping_group_range

2016-10-22 16:23:12 -04:00

tcp_bbr.c

tcp_bbr: add BBR congestion control

2016-09-21 00:23:01 -04:00

tcp_bic.c

…

tcp_cdg.c

tcp: cdg: rename struct minmax in tcp_cdg.c to avoid a naming conflict

2016-09-21 00:22:59 -04:00

tcp_cong.c

tcp: zero ca_priv area when switching cc algorithms

2016-11-21 13:13:56 -05:00

tcp_cubic.c

…

tcp_dctcp.c

dctcp: avoid bogus doubling of cwnd after loss

2016-10-31 15:16:28 -04:00

tcp_diag.c

net: diag: Fix refcnt leak in error path destroying socket

2016-08-23 23:11:36 -07:00

tcp_fastopen.c

tcp: initialize max window for a new fastopen socket

2017-02-04 09:47:10 +01:00

tcp_highspeed.c

…

tcp_htcp.c

…

tcp_hybla.c

…

tcp_illinois.c

…

tcp_input.c

tcp: warn on bogus MSS and try to amend it

2016-12-06 11:01:19 -05:00

tcp_ipv4.c

tcp: take care of truncations done by sk_filter()

2016-11-13 12:30:02 -05:00

tcp_lp.c

…

tcp_metrics.c

tcp: make nla_policy const

2016-09-01 14:09:01 -07:00

tcp_minisocks.c

tcp: track application-limited rate samples

2016-09-21 00:23:00 -04:00

tcp_nv.c

…

tcp_offload.c

gso: Support partial splitting at the frag_list pointer

2016-09-19 20:59:34 -04:00

tcp_output.c

tcp: fix 0 divide in __tcp_select_window()

2017-02-18 15:11:41 +01:00

tcp_probe.c

…

tcp_rate.c

tcp: export data delivery rate

2016-09-21 00:23:00 -04:00

tcp_recovery.c

…

tcp_scalable.c

…

tcp_timer.c

tcp: Change txhash on every SYN and RTO retransmit

2016-09-28 07:52:34 -04:00

tcp_vegas.c

…

tcp_vegas.h

…

tcp_veno.c

…

tcp_westwood.c

…

tcp_yeah.c

tcp: cwnd does not increase in TCP YeAH

2016-09-08 17:16:12 -07:00

tcp.c

tcp: avoid infinite loop in tcp_splice_read()

2017-02-18 15:11:42 +01:00

tunnel4.c

tunnels: correct conditional build of MPLS and IPv6

2016-07-11 13:27:06 -07:00

udp_diag.c

net: inet: diag: expose the socket mark to privileged processes.

2016-09-08 16:13:09 -07:00

udp_impl.h

udplite: call proper backlog handlers

2016-11-24 15:32:14 -05:00

udp_offload.c

net: add recursion limit to GRO

2016-10-20 14:32:22 -04:00

udp_tunnel.c

…

udp.c

udplite: call proper backlog handlers

2016-11-24 15:32:14 -05:00

udplite.c

udplite: call proper backlog handlers

2016-11-24 15:32:14 -05:00

xfrm4_input.c

…

xfrm4_mode_beet.c

…

xfrm4_mode_transport.c

…

xfrm4_mode_tunnel.c

…

xfrm4_output.c

…

xfrm4_policy.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-09-12 15:52:44 -07:00

xfrm4_protocol.c

…

xfrm4_state.c

…

xfrm4_tunnel.c

…