YOSHIFUJI Hideaki / 吉藤英明
ecd9883724
ipv6: fix race condition regarding dst->expires and dst->from. ...
Eric Dumazet wrote:
| Some strange crashes happen in rt6_check_expired(), with access
| to random addresses.
|
| At first glance, it looks like the RTF_EXPIRES and
| stuff added in commit 1716a96101https://bugzilla.redhat.com/show_bug.cgi?id=892060
Because we do not have any locks for dst_entry, we cannot change
essential structure in the entry; e.g., we cannot change reference
to other entity.
To fix this issue, split 'from' and 'expires' field in dst_entry
out of union. Once it is 'from' is assigned in the constructor,
keep the reference until the very last stage of the life time of
the object.
Of course, it is unsafe to change 'from', so make rt6_set_from simple
just for fresh entries.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reported-by: Neil Horman <nhorman@tuxdriver.com>
CC: Gao Feng <gaofeng@cn.fujitsu.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reported-by: Steinar H. Gunderson <sesse@google.com>
Reviewed-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-20 15:11:45 -05:00
Bluetooth: Keep track of UUID type upon addition
2013-02-01 15:50:17 -02:00
various: Fix spelling of "registered" in comments.
2012-11-19 14:29:46 +01:00
netfilter: nf_ct_helper: better logging for dropped packets
2013-02-19 02:48:05 +01:00
xfrm: make gc_thresh configurable in all namespaces
2013-02-06 11:36:29 +01:00
NFC: Initial Secure Element API
2013-01-10 00:51:54 +01:00
net: sctp: remove unused multiple cookie keys
2013-02-12 16:05:11 -05:00
act_police: move struct tcf_police to act_police.c
2013-02-12 18:59:45 -05:00
ipv4: introduce address lifetime
2013-01-29 13:59:57 -05:00
unix: Remove unused field from unix_sock
2012-10-21 20:37:06 -04:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-02-18 13:47:13 -05:00
net: Update args to dummy sock_update_classid().
2012-10-26 05:07:00 -04:00
decnet: use correct RCU API to deref sk_dst_cache field
2013-01-28 00:15:27 -05:00
ipv6: Optimize ipv6_change_dsfield().
2013-01-09 23:59:53 -08:00
ipv6: fix race condition regarding dst->expires and dst->from.
2013-02-20 15:11:45 -05:00
ipv4: Add FLOWI_FLAG_KNOWN_NH
2012-10-08 17:42:36 -04:00
netlink: Rename pid to portid to avoid confusion
2012-09-10 15:30:41 -04:00
gro: Fix kcalloc argument order
2013-01-27 22:46:33 -05:00
mac80211: support (partial) VHT radiotap information
2012-11-27 11:56:18 +01:00
soreuseport: TCP/IPv6 implementation
2013-01-23 13:44:01 -05:00
inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sock
2012-12-14 13:14:07 -05:00
tunnel: drop packet if ECN present with not-ECT
2012-09-27 18:12:37 -04:00
net: frag, move LRU list maintenance outside of rwlock
2013-01-29 13:36:24 -05:00
soreuseport: TCP/IPv4 implementation
2013-01-23 13:44:01 -05:00
net: move inet_dport/inet_num in sock_common
2012-11-30 15:02:56 -05:00
net: move inet_dport/inet_num in sock_common
2012-11-30 15:02:56 -05:00
ipv4: Add a socket release callback for datagram sockets
2013-01-21 14:17:05 -05:00
ipv6: move csum_ipv6_magic() and udp6_csum_init() into static library
2013-01-08 17:56:10 -08:00
ipv6: fix race condition regarding dst->expires and dst->from.
2013-02-20 15:11:45 -05:00
ipv6: Remove unused neigh argument for icmp6_dst_alloc() and its callers.
2013-01-18 14:41:13 -05:00
ipv4: add a fib_type to fib_info
2012-10-04 13:58:26 -04:00
ipvs: fix build errors related to config option combinations
2012-10-23 09:23:40 +09:00
net: convert __IPTUNNEL_XMIT() to an inline function
2012-11-14 18:49:50 -05:00
ipv6 flowlabel: Convert np->ipv6_fl_list to RCU.
2013-01-30 22:41:13 -05:00
llc: Remove stray reference to sysctl_llc_station_ack_timeout.
2012-09-17 13:13:24 -04:00
mac80211: stop modifying HT SMPS capability
2013-02-15 09:41:41 +01:00
net/802: Implement Multiple Registration Protocol (MRP)
2013-02-10 20:37:22 -05:00
ndisc: Move ndisc_opt_addr_space() to include/net/ndisc.h.
2013-01-21 13:33:14 -05:00
net neighbour, decnet: Ensure to align device private data on preferred alignment.
2013-02-11 00:21:44 -05:00
proc: Usable inode numbers for the namespace file descriptors.
2012-11-20 04:19:49 -08:00
ipv6 netevent: Remove old_neigh from netevent_redirect.
2013-01-14 15:04:59 -05:00
userns: Convert the audit loginuid to be a kuid
2012-09-17 18:08:54 -07:00
netlink: Rename pid to portid to avoid confusion
2012-09-10 15:30:41 -04:00
netprio_cgroup: use cgroup->id instead of cgroup_netprio_state->prioidx
2012-11-22 07:32:47 -08:00
pkt_sched: namespace aware act_mirred
2013-01-14 15:09:36 -05:00
sch_api: introduce qdisc_watchdog_schedule_ns()
2013-02-12 18:59:45 -05:00
net: Remove code duplication between offload structures
2012-11-15 17:39:51 -05:00
regulatory: use RCU to protect last_request
2013-01-03 13:01:30 +01:00
tcp: better retrans tracking for defer-accept
2012-11-03 14:45:00 -04:00
ipv4: avoid a test in ip_rt_put()
2012-11-03 14:59:04 -04:00
rtnelink: remove unused parameter from rtnl_create_link().
2012-11-30 12:24:40 -05:00
sch: make htb_rate_cfg and functions around that generic
2013-02-12 18:59:45 -05:00
net: Remove unnecessary NULL check in scm_destroy().
2012-09-24 15:52:33 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net into net
2013-02-18 23:34:21 -05:00
tcp: remove Appropriate Byte Count support
2013-02-05 14:51:16 -05:00
ipv6: rename datagram_send_ctl and datagram_recv_ctl
2013-01-31 13:53:08 -05:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2013-02-14 13:29:20 -05:00
ecd9883724