Rabin Vincent a2d6cbb067 ipv6: Fix idev->addr_list corruption ...

addrconf_ifdown() removes elements from the idev->addr_list without
holding the idev->lock.

If this happens while the loop in __ipv6_dev_get_saddr() is handling the
same element, that function ends up in an infinite loop:

  NMI watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [test:1719]
  Call Trace:
   ipv6_get_saddr_eval+0x13c/0x3a0
   __ipv6_dev_get_saddr+0xe4/0x1f0
   ipv6_dev_get_saddr+0x1b4/0x204
   ip6_dst_lookup_tail+0xcc/0x27c
   ip6_dst_lookup_flow+0x38/0x80
   udpv6_sendmsg+0x708/0xba8
   sock_sendmsg+0x18/0x30
   SyS_sendto+0xb8/0xf8
   syscall_common+0x34/0x58

Fixes: 6a923934c33 (Revert "ipv6: Revert optional address flusing on ifdown.")
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2017-04-12 13:23:39 -04:00

..

ila

lwtunnel: remove device arg to lwtunnel_build_state

2017-01-30 15:14:22 -05:00

netfilter

netfilter: nf_tables: fix mismatch in big-endian system

2017-03-13 13:30:28 +01:00

addrconf_core.c

…

addrconf.c

ipv6: Fix idev->addr_list corruption

2017-04-12 13:23:39 -04:00

addrlabel.c

ipv6/addrlabel: fix ip6addrlbl_get()

2015-12-22 15:57:54 -05:00

af_inet6.c

ipv6: reorder icmpv6_init() and ip6_mr_init()

2017-03-07 14:57:33 -08:00

ah6.c

IPsec: do not ignore crypto err in ah6 input

2017-01-16 12:57:48 +01:00

anycast.c

…

calipso.c

calipso: fix resource leak on calipso_genopt failure

2016-08-13 14:56:17 -07:00

datagram.c

ipv6: Handle IPv4-mapped src to in6addr_any dst.

2017-02-14 12:13:51 -05:00

esp6_offload.c

esp: Add a software GRO codepath

2017-02-15 11:04:11 +01:00

esp6.c

esp: Introduce a helper to setup the trailer

2017-01-17 10:23:08 +01:00

exthdrs_core.c

ipv6: constify the skb pointer of ipv6_find_tlv().

2016-06-27 15:06:15 -04:00

exthdrs_offload.c

ipv6: fix exthdrs offload registration in out_rt path

2015-09-02 15:31:00 -07:00

exthdrs.c

ipv6: sr: remove cleanup flag and fix HMAC computation

2017-02-03 11:05:23 -05:00

fib6_rules.c

net: flow: Add l3mdev flow update

2016-09-10 23:12:51 -07:00

fou6.c

fou: add Kconfig options for IPv6 support

2016-05-29 22:24:21 -07:00

icmp.c

net: for rate-limited ICMP replies save one atomic operation

2017-01-09 15:49:12 -05:00

inet6_connection_sock.c

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

2017-01-28 10:33:06 -05:00

inet6_hashtables.c

inet: collapse ipv4/v6 rcv_saddr_equal functions into one

2017-01-18 13:04:28 -05:00

ip6_checksum.c

ipv6: fix checksum annotation in udp6_csum_init

2016-06-14 15:26:42 -04:00

ip6_fib.c

ipv6: make ECMP route replacement less greedy

2017-03-13 12:16:17 -07:00

ip6_flowlabel.c

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

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

ip6_gre.c

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

2017-02-07 16:29:30 -05:00

ip6_icmp.c

ipv6: icmp: add a force_saddr param to icmp6_send()

2016-06-18 22:11:38 -07:00

ip6_input.c

net: vrf: ipv6 support for local traffic to local addresses

2016-06-08 00:25:38 -07:00

ip6_offload.c

net/tunnel: set inner protocol in network gro hooks

2017-03-09 13:19:52 -08:00

ip6_offload.h

udp: Add GRO functions to UDP socket

2016-04-07 16:53:29 -04:00

ip6_output.c

ipv6: avoid write to a possibly cloned skb

2017-03-13 12:53:35 -07:00

ip6_tunnel.c

ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()

2017-02-01 12:27:33 -05:00

ip6_udp_tunnel.c

ip6_udp_tunnel: remove unused IPCB related codes

2016-11-02 15:18:36 -04:00

ip6_vti.c

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

2017-03-07 15:00:37 -08:00

ip6mr.c

ipv6: check sk sk_type and protocol early in ip_mroute_set/getsockopt

2017-02-26 21:25:46 -05:00

ipcomp6.c

net: inet: Support UID-based routing in IP protocols.

2016-11-04 14:45:23 -04:00

ipv6_sockglue.c

net: Allow IP_MULTICAST_IF to set index to L3 slave

2016-12-30 15:24:47 -05:00

Kconfig

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

2017-02-16 21:25:49 -05:00

Makefile

esp: Add a software GRO codepath

2017-02-15 11:04:11 +01:00

mcast_snoop.c

net: fix wrong skb_get() usage / crash in IGMP/MLD parsing code

2015-08-13 17:08:39 -07:00

mcast.c

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

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

mip6.c

ktime: Get rid of ktime_equal()

2016-12-25 17:21:23 +01:00

ndisc.c

ipv6 addrconf: Implemented enhanced DAD (RFC7527)

2016-12-03 23:21:37 -05:00

netfilter.c

net: inet: Support UID-based routing in IP protocols.

2016-11-04 14:45:23 -04:00

output_core.c

ipv6: Set skb->protocol properly for local output

2016-12-02 12:34:22 -05:00

ping.c

ipv6: remove unnecessary inet6_sk check

2016-12-29 12:05:49 -05:00

proc.c

proc: Reduce cache miss in snmp6_seq_show

2016-09-30 01:50:44 -04:00

protocol.c

…

raw.c

net: use dst_confirm_neigh for UDP, RAW, ICMP, L2TP

2017-02-07 13:07:47 -05:00

reassembly.c

ipv6: on reassembly, record frag_max_size

2016-11-03 15:41:11 -04:00

route.c

net: ipv6: set route type for anycast routes

2017-03-16 20:40:14 -07:00

seg6_hmac.c

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

2017-02-07 16:29:30 -05:00

seg6_iptunnel.c

ipv6: sr: fix non static symbol warnings

2017-02-07 11:42:35 -05:00

seg6.c

ipv6: seg6_genl_set_tunsrc() must check kmemdup() return value

2017-01-20 11:07:48 -05:00

sit.c

sit: fix a double free on error path

2017-02-08 13:12:22 -05:00

syncookies.c

syncookies: use SipHash in place of SHA1

2017-01-09 13:58:57 -05:00

sysctl_net_ipv6.c

calipso: Add a label cache.

2016-06-27 15:06:17 -04:00

tcp_ipv6.c

dccp/tcp: fix routing redirect race

2017-03-13 21:55:47 -07:00

tcpv6_offload.c

…

tunnel6.c

ipv6: fix tunnel error handling

2015-11-03 10:52:13 -05:00

udp_impl.h

udplite: call proper backlog handlers

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

udp_offload.c

gso: Remove arbitrary checks for unsupported GSO

2016-05-20 18:03:15 -04:00

udp.c

ipv6: make sure to initialize sockc.tsflags before first use

2017-03-22 12:40:22 -07:00

udplite.c

udplite: call proper backlog handlers

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

xfrm6_input.c

esp: Add a software GRO codepath

2017-02-15 11:04:11 +01:00

xfrm6_mode_beet.c

…

xfrm6_mode_ro.c

…

xfrm6_mode_transport.c

esp: Add a software GRO codepath

2017-02-15 11:04:11 +01:00

xfrm6_mode_tunnel.c

ipv6: update skb->csum when CE mark is propagated

2016-01-15 15:07:23 -05:00

xfrm6_output.c

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

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

xfrm6_policy.c

xfrm: policy: make policy backend const

2017-02-09 10:22:19 +01:00

xfrm6_protocol.c

xfrm: input: constify xfrm_input_afinfo

2017-02-09 10:22:17 +01:00

xfrm6_state.c

…

xfrm6_tunnel.c

netns: make struct pernet_operations::id unsigned int

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