Hannes Frederic Sowa 01ba16d6ec ipv6: reset dst.expires value when clearing expire flag ... On receiving a packet too big icmp error we update the expire value by calling rt6_update_expires. This function uses dst_set_expires which is implemented that it can only reduce the expiration value of the dst entry. If we insert new routing non-expiry information into the ipv6 fib where we already have a matching rt6_info we only clear the RTF_EXPIRES flag in rt6i_flags and leave the dst.expires value as is. When new mtu information arrives for that cached dst_entry we again call dst_set_expires. This time it won't update the dst.expire value because we left the dst.expire value intact from the last update. So dst_set_expires won't touch dst.expires. Fix this by resetting dst.expires when clearing the RTF_EXPIRE flag. dst_set_expires checks for a zero expiration and updates the dst.expires. In the past this (not updating dst.expires) was necessary because dst.expire was placed in a union with the dst_entry *from reference and rt6_clean_expires did assign NULL to it. This split happend in ecd9883724 ("ipv6: fix race condition regarding dst->expires and dst->from"). Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Reported-by: Valentijn Sessink <valentyn@blub.net> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Eric Dumazet <edumazet@google.com> Tested-by: Valentijn Sessink <valentyn@blub.net> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-10-25 19:26:59 -04:00
..
9p	for-linus-3.12-merge minor 9p fixes and tweaks for 3.12 merge window	2013-09-11 12:34:13 -07:00
bluetooth	Bluetooth: Introduce a new HCI_RFKILLED flag	2013-09-18 12:37:27 -05:00
caif	caif: Remove my bouncing email address.	2013-04-23 13:25:51 -04:00
irda	include: Convert ethernet mac address declarations to use ETH_ALEN	2013-08-02 12:33:54 -07:00
iucv	af_iucv: fix recvmsg by replacing skb_pull() function	2013-04-08 17:16:57 -04:00
netfilter	netfilter: synproxy: fix BUG_ON triggered by corrupt TCP packets	2013-09-30 12:44:38 +02:00
netns	Revert "net: sctp: convert sctp_checksum_disable module param into sctp sysctl"	2013-08-09 13:09:41 -07:00
nfc	NFC: netlink: Add result of firmware operation to completion event	2013-08-14 01:12:58 +02:00
phonet	net: remove my future former mail address	2012-06-17 16:29:38 -07:00
sctp	net: sctp: reorder sctp_globals to reduce cacheline usage	2013-08-29 14:55:54 -04:00
tc_act
act_api.h	net: Remove extern from include/net/ scheduling prototypes	2013-07-31 17:24:22 -07:00
addrconf.h	IPv6 NAT: Do not drop DNATed 6to4/6rd packets	2013-09-28 15:56:15 -04:00
af_ieee802154.h
af_rxrpc.h	af_rxrpc.h: Remove extern from function prototypes	2013-07-31 17:50:01 -07:00
af_unix.h	af_unix: improve STREAM behavior with fragmented memory	2013-08-10 01:16:44 -07:00
af_vsock.h	VSOCK: Move af_vsock.h and vsock_addr.h to include/net	2013-07-27 22:14:06 -07:00
ah.h
arp.h	arp/neighbour.h: Remove extern from function prototypes	2013-07-31 17:50:02 -07:00
atmclip.h
ax25.h	ax25.h: Remove extern from function prototypes	2013-07-31 17:50:02 -07:00
ax88796.h
busy_poll.h	net: add cpu_relax to busy poll loop	2013-08-28 17:45:48 -04:00
cfg80211-wext.h
cfg80211.h	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem	2013-08-29 14:08:24 -04:00
checksum.h	checksum: Remove extern from function prototypes	2013-07-31 17:50:02 -07:00
cipso_ipv4.h	net: fix cipso packet validation when !NETLABEL	2013-10-19 18:55:42 -04:00
cls_cgroup.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-09-05 14:54:29 -07:00
codel.h	codel: refine one condition to avoid a nul rec_inv_sqrt	2012-08-10 16:52:54 -07:00
compat.h
datalink.h
dcbevent.h
dcbnl.h
dn_dev.h
dn_fib.h	decnet: Parse netlink attributes on our own	2013-03-22 10:31:16 -04:00
dn_neigh.h
dn_nsp.h
dn_route.h	decnet: use correct RCU API to deref sk_dst_cache field	2013-01-28 00:15:27 -05:00
dn.h
dsa.h
dsfield.h	ipv6: Optimize ipv6_change_dsfield().	2013-01-09 23:59:53 -08:00
dst_ops.h	net: Fix warnings in dst_ops.h	2012-07-19 10:43:03 -07:00
dst.h	net: dst: provide accessor function to dst->xfrm	2013-10-17 15:24:44 -04:00
esp.h
ethoc.h
fib_rules.h	fib_rules: reorder struct fib_rules fields	2013-08-03 11:53:54 -07:00
firewire.h	firewire net, ipv4 arp: Extend hardware address and remove driver-level packet inspection.	2013-03-26 12:32:13 -04:00
flow_keys.h	flow_keys: include thoff into flow_keys for later usage	2013-03-20 12:14:36 -04:00
flow.h	ipv4: Add FLOWI_FLAG_KNOWN_NH	2012-10-08 17:42:36 -04:00
garp.h
gen_stats.h	net_sched: add 64bit rate estimators	2013-06-11 02:51:03 -07:00
genetlink.h	genl: Hold reference on correct module while netlink-dump.	2013-08-28 17:19:17 -04:00
gre.h	net: gre: move GSO functions to gre_offload	2013-07-03 14:37:39 -07:00
gro_cells.h	gro: Fix kcalloc argument order	2013-01-27 22:46:33 -05:00
icmp.h	ipv4: fix error handling in icmp_protocol.	2013-02-22 15:10:18 -05:00
ieee80211_radiotap.h	mac80211: add radiotap flag and handling for 5/10 MHz	2013-07-16 09:58:05 +03:00
ieee802154_netdev.h	ieee802154/nl-mac.c: make some MLME operations optional	2013-04-08 12:00:16 -04:00
ieee802154.h
if_inet6.h	net: ipv6: mld: fix v1/v2 switchback timeout to rfc3810, 9.12.	2013-09-04 14:53:20 -04:00
inet6_connection_sock.h	ipv6: Add helper inet6_csk_update_pmtu().	2012-07-16 03:44:56 -07:00
inet6_hashtables.h	ipv6: use a stronger hash for tcp	2013-02-21 18:15:58 -05:00
inet_common.h	net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN)	2012-07-19 11:02:03 -07:00
inet_connection_sock.h	tcp: Tail loss probe (TLP)	2013-03-12 08:30:34 -04:00
inet_ecn.h	net: Correct comparisons and calculations using skb->tail and skb-transport_header	2013-05-28 23:49:07 -07:00
inet_frag.h	net: frag, fix race conditions in LRU list maintenance	2013-05-06 11:06:51 -04:00
inet_hashtables.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
inet_sock.h	ipv4: remove is_data also from ip_options documentation.	2013-06-12 03:13:50 -07:00
inet_timewait_sock.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
inetpeer.h	ipv4: Maintain redirect and PMTU info in struct rtable again.	2012-07-10 22:40:14 -07:00
ip6_checksum.h	ipv6: move csum_ipv6_magic() and udp6_csum_init() into static library	2013-01-08 17:56:10 -08:00
ip6_fib.h	ipv6: reset dst.expires value when clearing expire flag	2013-10-25 19:26:59 -04:00
ip6_route.h	ipv6: fill rt6i_gateway with nexthop address	2013-10-21 18:37:01 -04:00
ip6_tunnel.h	tunnels: harmonize cleanup done on skb on xmit path	2013-09-04 00:27:25 -04:00
ip_fib.h	ipv4: remove fib_update_nh_saddrs() declaration.	2013-07-02 00:33:52 -07:00
ip_tunnels.h	tunnels: harmonize cleanup done on skb on xmit path	2013-09-04 00:27:25 -04:00
ip_vs.h	ipvs: make the service replacement more robust	2013-09-18 14:39:03 -05:00
ip.h	ip: generate unique IP identificator if local fragmentation is allowed	2013-09-19 14:11:15 -04:00
ipcomp.h
ipconfig.h
ipv6.h	ipv6: move ip6_dst_hoplimit() into core kernel	2013-08-31 22:29:59 -04:00
ipx.h
iw_handler.h
lapb.h
lib80211.h	hostap: Don't use create_proc_read_entry()	2013-04-29 15:41:56 -04:00
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h	llc: Use normal etherdevice.h tests	2013-09-03 22:34:47 -04:00
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h	llc: Remove stray reference to sysctl_llc_station_ack_timeout.	2012-09-17 13:13:24 -04:00
mac80211.h	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem	2013-08-29 14:08:24 -04:00
mac802154.h	mac802154: correct a typo in ieee802154_alloc_device() prototype	2013-10-21 18:56:23 -04:00
mip6.h
mld.h	net: ipv6: mld: get rid of MLDV2_MRC and simplify calculation	2013-09-04 14:53:20 -04:00
mrp.h	mrp: add periodictimer to allow retries when packets get lost	2013-09-23 16:53:52 -04:00
ndisc.h	ipv6: don't call fib6_run_gc() until routing is ready	2013-09-11 17:04:09 -04:00
neighbour.h	arp/neighbour.h: Remove extern from function prototypes	2013-07-31 17:50:02 -07:00
net_namespace.h	net: Delay default_device_exit_batch until no devices are unregistering v2	2013-09-28 15:09:15 -07:00
net_ratelimit.h
netdma.h
netevent.h	ipv6 netevent: Remove old_neigh from netevent_redirect.	2013-01-14 15:04:59 -05:00
netlabel.h	userns: Convert the audit loginuid to be a kuid	2012-09-17 18:08:54 -07:00
netlink.h	netlink: Rename pid to portid to avoid confusion	2012-09-10 15:30:41 -04:00
netprio_cgroup.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-09-05 14:54:29 -07:00
netrom.h	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
nexthop.h
nl802154.h
p8022.h
ping.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-06-05 16:37:30 -07:00
pkt_cls.h	net: Remove extern from include/net/ scheduling prototypes	2013-07-31 17:24:22 -07:00
pkt_sched.h	qdisc: allow setting default queuing discipline	2013-08-31 00:32:32 -04:00
protocol.h	net: Remove code duplication between offload structures	2012-11-15 17:39:51 -05:00
psnap.h
raw.h
rawv6.h
red.h
regulatory.h	regulatory: use RCU to protect last_request	2013-01-03 13:01:30 +01:00
request_sock.h	net: remove a stale comment for dl_next	2013-04-22 15:55:48 -04:00
rose.h
route.h	xfrm: introduce helper for safe determination of mtu	2013-08-14 13:09:07 +02:00
rtnetlink.h	rtnetlink: Remove passing of attributes into rtnl_doit functions	2013-03-22 10:31:16 -04:00
sch_generic.h	qdisc: make args to qdisc_create_default const	2013-08-31 18:09:45 -04:00
scm.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-22 20:32:51 -04:00
secure_seq.h	net: net_secret should not depend on TCP	2013-09-28 15:19:40 -07:00
slhc_vj.h
snmp.h	net: avoid reloads in SNMP_UPD_PO_STATS	2012-08-06 13:40:47 -07:00
sock.h	net: fix unsafe set_memory_rw from softirq	2013-10-07 15:16:45 -04:00
stp.h
tcp_memcontrol.h
tcp_states.h
tcp.h	tcp: Change return value of tcp_rcv_established()	2013-09-04 00:27:28 -04:00
timewait_sock.h	[PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary.	2012-06-09 14:56:12 -07:00
transp_v6.h	transp_v6.h: style neatening	2013-06-04 16:43:42 -07:00
udp.h	pktgen: Add UDPCSUM flag to support UDP checksums	2013-07-27 22:16:36 -07:00
udplite.h
vsock_addr.h	VSOCK: Move af_vsock.h and vsock_addr.h to include/net	2013-07-27 22:14:06 -07:00
vxlan.h	vxlan: Notify drivers for listening UDP port changes	2013-09-05 12:44:30 -04:00
wext.h
wimax.h
wpan-phy.h
x25.h
x25device.h
xfrm.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-09-05 14:58:52 -04:00