Paolo Abeni 7e963e31de 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 11:09:17 +01:00

..

netfilter

netfilter: ipt_CLUSTERIP: fix build error without procfs

2017-01-18 20:59:22 +01:00

af_inet.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ah4.c

ah4: Fix error return in ah_input().

2015-08-25 13:38:50 -07:00

arp.c

NET: Fix /proc/net/arp for AX.25

2017-02-13 22:15:03 -05:00

cipso_ipv4.c

netlabel: out of bound access in cipso_v4_validate()

2017-02-04 19:44:22 -05:00

datagram.c

net: Set sk_txhash from a random number

2015-07-29 22:44:04 -07:00

devinet.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

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

2017-01-18 17:07:14 -05:00

fib_lookup.h

ipv4: consider TOS in fib_select_default

2015-07-24 22:46:11 -07:00

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

2017-01-12 15:11:43 -05:00

fib_trie.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

fou.c

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

2016-10-30 12:42:58 -04:00

gre_demux.c

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

2016-06-30 05:03:36 -04:00

gre_offload.c

net: add recursion limit to GRO

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

icmp.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

igmp.c

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

2017-02-09 16:43:45 -05:00

inet_connection_sock.c

inet: Fix get port to handle zero port number with soreuseport set

2016-12-17 11:13:19 -05:00

inet_diag.c

tcp: no longer hold ehash lock while calling tcp_get_info()

2016-11-09 13:02:27 -05:00

inet_fragment.c

net: disable fragment reassembly if high_thresh is zero

2016-06-05 22:56:42 -04:00

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

net: Add helper function to compare inetpeer addresses

2015-08-28 13:32:36 -07:00

ip_forward.c

ipv4: allow local fragmentation in ip_finish_output_gso()

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

ip_fragment.c

net: rename IP_INC_STATS_BH()

2016-04-27 22:48:23 -04:00

ip_gre.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ip_input.c

net: VRF: Pass original iif to ip_route_input()

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

ip_options.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ip_output.c

tcp: fix mark propagation with fwmark_reflect enabled

2017-01-09 18:01:03 +01:00

ip_sockglue.c

ip: fix IP_CHECKSUM handling

2017-02-26 11:09:17 +01:00

ip_tunnel_core.c

net: Specify the owning module for lwtunnel ops

2017-01-24 16:21:36 -05:00

ip_tunnel.c

netns: make struct pernet_operations::id unsigned int

2016-11-18 10:59:15 -05:00

ip_vti.c

netns: make struct pernet_operations::id unsigned int

2016-11-18 10:59:15 -05:00

ipcomp.c

ipv4: coding style: comparison for equality with NULL

2015-04-03 12:11:15 -04:00

ipconfig.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ipip.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ipmr.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

Kconfig

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

2016-12-03 12:29:53 -05:00

Makefile

net: ip, diag -- Add diag interface for raw sockets

2016-10-23 19:35:24 -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

2017-02-08 13:58:21 -05:00

proc.c

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

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

protocol.c

…

raw_diag.c

net: ip, raw_diag -- Use jump for exiting from nested loop

2016-11-03 15:25:26 -04:00

raw.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

route.c

net: ipv4: fix table id in getroute response

2017-01-12 15:18:20 -05:00

syncookies.c

tcp: randomize tcp timestamp offsets for each connection

2016-12-02 12:49:59 -05:00

sysctl_net_ipv4.c

ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int

2017-01-09 16:34:38 -05:00

tcp_bbr.c

tcp_bbr: add a state transition diagram and accompanying comment

2016-10-29 17:12:43 -04:00

tcp_bic.c

tcp: replace cnt & rtt with struct in pkts_acked()

2016-05-11 14:43:19 -04:00

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

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

2016-11-22 13:27:16 -05:00

tcp_cubic.c

tcp: replace cnt & rtt with struct in pkts_acked()

2016-05-11 14:43:19 -04:00

tcp_dctcp.c

Revert "dctcp: update cwnd on congestion event"

2016-12-06 11:34:24 -05:00

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

2017-01-19 11:35:26 -05:00

tcp_highspeed.c

tcp: add cwnd_undo functions to various tcp cc algorithms

2016-11-21 13:20:17 -05:00

tcp_htcp.c

tcp: replace cnt & rtt with struct in pkts_acked()

2016-05-11 14:43:19 -04:00

tcp_hybla.c

tcp: make undo_cwnd mandatory for congestion modules

2016-11-21 13:20:17 -05:00

tcp_illinois.c

tcp: add cwnd_undo functions to various tcp cc algorithms

2016-11-21 13:20:17 -05:00

tcp_input.c

tcp: correct memory barrier usage in tcp_check_space()

2017-01-25 13:23:36 -05:00

tcp_ipv4.c

ipv4: Namespaceify tcp_tw_reuse knob

2016-12-27 12:28:07 -05:00

tcp_lp.c

tcp: make undo_cwnd mandatory for congestion modules

2016-11-21 13:20:17 -05:00

tcp_metrics.c

tcp: do not export tcp_peer_is_proven()

2017-01-09 16:34:39 -05:00

tcp_minisocks.c

tcp: randomize tcp timestamp offsets for each connection

2016-12-02 12:49:59 -05:00

tcp_nv.c

tcp: add NV congestion control

2016-06-10 23:07:49 -07:00

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()

2017-02-01 12:55:42 -05:00

tcp_probe.c

tcp: tcp_probe: use spin_lock_bh()

2017-02-14 22:19:39 -05:00

tcp_rate.c

tcp: export data delivery rate

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

tcp_recovery.c

tcp: do not assume TCP code is non preemptible

2016-05-02 17:02:25 -04:00

tcp_scalable.c

tcp: add cwnd_undo functions to various tcp cc algorithms

2016-11-21 13:20:17 -05:00

tcp_timer.c

tcp: tsq: move tsq_flags close to sk_wmem_alloc

2016-12-05 13:32:24 -05:00

tcp_vegas.c

tcp: make undo_cwnd mandatory for congestion modules

2016-11-21 13:20:17 -05:00

tcp_vegas.h

tcp: replace cnt & rtt with struct in pkts_acked()

2016-05-11 14:43:19 -04:00

tcp_veno.c

tcp: add cwnd_undo functions to various tcp cc algorithms

2016-11-21 13:20:17 -05:00

tcp_westwood.c

tcp: make undo_cwnd mandatory for congestion modules

2016-11-21 13:20:17 -05:00

tcp_yeah.c

tcp: add cwnd_undo functions to various tcp cc algorithms

2016-11-21 13:20:17 -05:00

tcp.c

tcp: avoid infinite loop in tcp_splice_read()

2017-02-06 22:38:55 -05:00

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

net: Remove deprecated tunnel specific UDP offload functions

2016-06-17 20:23:32 -07:00

udp.c

udp: properly cope with csum errors

2017-02-07 11:19:00 -05:00

udplite.c

udplite: call proper backlog handlers

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

xfrm4_input.c

netfilter: Pass net into okfn

2015-09-17 17:18:37 -07:00

xfrm4_mode_beet.c

…

xfrm4_mode_transport.c

…

xfrm4_mode_tunnel.c

ipv4: hash net ptr into fragmentation bucket selection

2015-03-25 14:07:04 -04:00

xfrm4_output.c

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

2015-10-24 06:54:12 -07:00

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

…