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linux/net/ipv4
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Nicolas Dichtel f15ca723c1 net: don't call update_pmtu unconditionally 
Some dst_ops (e.g. md_dst_ops)) doesn't set this handler. It may result to:
"BUG: unable to handle kernel NULL pointer dereference at           (null)"

Let's add a helper to check if update_pmtu is available before calling it.

Fixes: 52a589d51f10 ("geneve: update skb dst pmtu on tx path")
Fixes: a93bf0ff4490 ("vxlan: update skb dst pmtu on tx path")
CC: Roman Kapl <code@rkapl.cz>
CC: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25 16:27:34 -05:00
..
netfilter
netfilter: ipt_CLUSTERIP: fix clusterip_net_exit build regression
2017-12-07 23:19:58 +01:00
af_inet.c
net: accept UFO datagrams from tuntap and packet
2017-11-24 01:37:35 +09:00
ah4.c
net: use -ENOSPC for transient busy indication
2017-11-03 22:11:17 +08:00
arp.c
ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY
2018-01-15 14:53:43 -05:00
cipso_ipv4.c
tcp/dccp: fix ireq->opt races
2017-10-21 01:33:19 +01:00
datagram.c
…
devinet.c
ipv4: igmp: guard against silly MTU values
2017-12-13 13:13:58 -05:00
esp4_offload.c
gso: validate gso_type in GSO handlers
2018-01-22 16:01:30 -05:00
esp4.c
xfrm: Return error on unknown encap_type in init_state
2018-01-08 07:17:52 +01:00
fib_frontend.c
ipv4: Fix use-after-free when flushing FIB tables
2017-12-20 15:12:39 -05:00
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
net: fib_rules: Implement notification logic in core
2017-08-03 15:35:59 -07:00
fib_semantics.c
ipv4: fib: Fix metrics match when deleting a route
2017-12-19 14:21:58 -05:00
fib_trie.c
net: Add extack to fib_notifier_info
2017-11-01 11:50:43 +09:00
fou.c
gue: fix remcsum when GRO on and CHECKSUM_PARTIAL boundary is outer UDP
2017-08-01 16:09:14 -07:00
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
gso: fix payload length when gso_size is zero
2017-10-08 10:12:15 -07:00
icmp.c
ipv4: icmp: use BUG_ON instead of if condition followed by BUG
2017-10-24 18:44:42 +09:00
igmp.c
net: igmp: fix source address check for IGMPv3 reports
2018-01-22 16:16:05 -05:00
inet_connection_sock.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-10-30 21:09:24 +09:00
inet_diag.c
inet_diag: allow protocols to provide additional data
2017-09-01 18:38:09 -07:00
inet_fragment.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-11-15 11:56:19 -08:00
inet_hashtables.c
soreuseport: fix initialization race
2017-10-22 02:03:51 +01:00
inet_timewait_sock.c
Revert "tcp: must block bh in __inet_twsk_hashdance()"
2017-12-05 11:23:58 -05:00
inetpeer.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-10-05 18:19:22 -07:00
ip_forward.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip_fragment.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
ip_gre.c
ip_gre: remove the incorrect mtu limit for ipgre tap
2017-12-19 13:45:32 -05:00
ip_input.c
IPv4: early demux can return an error code
2017-10-01 03:55:47 +01:00
ip_options.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip_output.c
udp: remove unreachable ufo branches
2017-08-22 14:27:18 -07:00
ip_sockglue.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip_tunnel_core.c
net: store port/representator id in metadata_dst
2017-06-25 11:42:01 -04:00
ip_tunnel.c
net: don't call update_pmtu unconditionally
2018-01-25 16:27:34 -05:00
ip_vti.c
net: don't call update_pmtu unconditionally
2018-01-25 16:27:34 -05:00
ipcomp.c
…
ipconfig.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ipip.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-10-30 21:09:24 +09:00
ipmr.c
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
Kconfig
ip: update policy routing config help
2017-10-12 22:57:11 -07:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
netfilter.c
netfilter: use skb_to_full_sk in ip_route_me_harder
2017-02-28 12:49:36 +01:00
ping.c
net: convert sock.sk_refcnt from atomic_t to refcount_t
2017-07-01 07:39:08 -07:00
proc.c
tcp: retire FACK loss detection
2017-11-11 18:53:16 +09:00
protocol.c
net: Add sysctl to toggle early demux for tcp and udp
2017-03-24 13:17:07 -07:00
raw_diag.c
net: ipv6: add second dif to raw socket lookups
2017-08-07 11:39:22 -07:00
raw.c
net: ipv4: emulate READ_ONCE() on ->hdrincl bit-field in raw_sendmsg()
2018-01-09 11:59:16 -05:00
route.c
net: ipv4: Make "ip route get" match iif lo rules again.
2018-01-15 13:53:30 -05:00
syncookies.c
tcp: Namespace-ify sysctl_tcp_workaround_signed_windows
2017-10-28 19:24:38 +09:00
sysctl_net_ipv4.c
tcp: Namespace-ify sysctl_tcp_default_congestion_control
2017-11-15 14:09:52 +09:00
tcp_bbr.c
tcp_bbr: reset long-term bandwidth sampling on loss recovery undo
2017-12-08 13:27:43 -05:00
tcp_bic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_cdg.c
tcp: cdg: make struct tcp_cdg static
2017-10-16 21:24:25 +01:00
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
Revert "dctcp: update cwnd on congestion event"
2016-12-06 11:34:24 -05:00
tcp_diag.c
tcp_diag: report TCP MD5 signing keys and addresses
2017-09-01 18:38:09 -07:00
tcp_fastopen.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
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
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_input.c
tcp: fix potential underestimation on rcv_rtt
2017-12-13 16:01:17 -05:00
tcp_ipv4.c
tcp md5sig: Use skb's saddr when replying to an incoming segment
2017-12-12 11:15:42 -05:00
tcp_lp.c
tcp: switch TCP TS option (RFC 7323) to 1ms clock
2017-05-17 16:06:01 -04:00
tcp_metrics.c
tcp: retire FACK loss detection
2017-11-11 18:53:16 +09:00
tcp_minisocks.c
tcp/dccp: block bh before arming time_wait timer
2017-12-01 15:07:43 -05:00
tcp_nv.c
tcp_nv: use do_div() instead of expensive div64_u64()
2017-11-04 22:34:52 +09:00
tcp_offload.c
gso: validate gso_type in GSO handlers
2018-01-22 16:01:30 -05:00
tcp_output.c
tcp: when scheduling TLP, time of RTO should account for current ACK
2017-11-19 12:25:26 +09:00
tcp_probe.c
tcp: remove redundant argument from tcp_rcv_established()
2017-07-24 17:28:12 -07:00
tcp_rate.c
tcp: invalidate rate samples during SACK reneging
2017-12-08 10:07:02 -05:00
tcp_recovery.c
tcp: evaluate packet losses upon RTT change
2017-12-08 14:14:11 -05:00
tcp_scalable.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_timer.c
net: tcp: close sock if net namespace is exiting
2018-01-25 10:56:45 -05:00
tcp_ulp.c
tcp: ulp: avoid module refcnt leak in tcp_set_ulp
2017-08-14 22:17:05 -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
net: tcp: close sock if net namespace is exiting
2018-01-25 10:56:45 -05:00
tunnel4.c
tunnels: correct conditional build of MPLS and IPv6
2016-07-11 13:27:06 -07:00
udp_diag.c
net: ipv6: add second dif to udp socket lookups
2017-08-07 11:39:22 -07:00
udp_impl.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
udp_offload.c
gso: validate gso_type in GSO handlers
2018-01-22 16:01:30 -05:00
udp_tunnel.c
net: add infrastructure to un-offload UDP tunnel port
2017-07-24 13:52:59 -07:00
udp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-11-15 11:56:19 -08:00
udplite.c
udplite: call proper backlog handlers
2016-11-24 15:32:14 -05:00
xfrm4_input.c
xfrm: Reinject transport-mode packets through tasklet
2017-12-19 08:23:21 +01:00
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: Add encapsulation header offsets while SKB is not encrypted
2017-04-14 10:07:39 +02:00
xfrm4_mode_tunnel.c
xfrm: Fix eth_hdr(skb)->h_proto to reflect inner IP version
2018-01-23 10:56:36 +01:00
xfrm4_output.c
xfrm: Add an IPsec hardware offloading API
2017-04-14 10:06:10 +02:00
xfrm4_policy.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xfrm4_protocol.c
xfrm: input: constify xfrm_input_afinfo
2017-02-09 10:22:17 +01:00
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
…