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134e32b979
linux/net/ipv4
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David S. Miller 8f49c2703b tcp: Don't change unlocked socket state in tcp_v4_err(). 
Alexey Kuznetsov noticed a regression introduced by
commit f1ecd5d9e7
("Revert Backoff [v3]: Revert RTO on ICMP destination unreachable")

The RTO and timer modification code added to tcp_v4_err()
doesn't check sock_owned_by_user(), which if true means we
don't have exclusive access to the socket and therefore cannot
modify it's critical state.

Just skip this new code block if sock_owned_by_user() is true
and eliminate the now superfluous sock_owned_by_user() code
block contained within.

Reported-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
CC: Damian Lukowski <damian@tvk.rwth-aachen.de>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2010-11-12 13:35:00 -08:00
..
netfilter ipv4: netfilter: ip_tables: fix information leak to userland 2010-11-03 08:45:06 +01:00
af_inet.c net: build_ehash_secret() and rt_bind_peer() cleanups 2010-08-20 00:50:16 -07:00
ah4.c
arp.c neigh: Protect neigh->ha[] with a seqlock 2010-10-11 12:54:04 -07:00
cipso_ipv4.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
datagram.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
devinet.c inet: RCU changes in inetdev_by_index() 2010-10-19 03:50:48 -07:00
esp4.c
fib_frontend.c fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
fib_hash.c fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
fib_lookup.h fib: fib_result_assign() should not change fib refcounts 2010-11-04 12:05:32 -07:00
fib_rules.c fib: RCU conversion of fib_lookup() 2010-10-05 20:39:38 -07:00
fib_semantics.c fib: introduce fib_alias_accessed() helper 2010-10-21 03:09:41 -07:00
fib_trie.c fib: Fix fib zone and its hash leak on namespace stop 2010-10-28 10:27:03 -07:00
gre.c tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
icmp.c net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
igmp.c inet: fix ip_mc_drop_socket() 2010-11-09 08:26:42 -08:00
inet_connection_sock.c
inet_diag.c inet_diag: Make sure we actually run the same bytecode we audited. 2010-11-04 12:26:34 -07:00
inet_fragment.c
inet_hashtables.c tproxy: fix hash locking issue when using port redirection in __inet_inherit_port() 2010-10-21 13:06:43 +02:00
inet_lro.c
inet_timewait_sock.c
inetpeer.c inetpeer: __rcu annotations 2010-10-27 11:37:33 -07:00
ip_forward.c
ip_fragment.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
ip_gre.c ip_gre: fix fallback tunnel setup 2010-10-30 16:21:28 -07:00
ip_input.c
ip_options.c bridge : Sanitize skb before it enters the IP stack 2010-09-19 12:42:34 -07:00
ip_output.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-27 01:03:03 -07:00
ip_sockglue.c ipv4: add __rcu annotations to ip_ra_chain 2010-10-25 14:18:28 -07:00
ipcomp.c
ipconfig.c
ipip.c tunnels: Fix tunnels change rcu protection 2010-10-27 14:20:08 -07:00
ipmr.c ipmr: cleanups 2010-10-03 21:50:53 -07:00
Kconfig Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
Makefile PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol) 2010-08-21 23:05:39 -07:00
netfilter.c
proc.c net: avoid limits overflow 2010-11-10 12:12:00 -08:00
protocol.c net: add __rcu annotations to protocol 2010-10-27 11:37:31 -07:00
raw.c net: simplify flags for tx timestamping 2010-08-19 00:08:30 -07:00
route.c ipv4: add __rcu annotations to routes.c 2010-10-27 11:37:31 -07:00
syncookies.c
sysctl_net_ipv4.c net: avoid limits overflow 2010-11-10 12:12:00 -08:00
tcp_bic.c
tcp_cong.c net/ipv4: Eliminate kstrdup memory leak 2010-08-27 19:31:56 -07:00
tcp_cubic.c
tcp_diag.c
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
tcp_input.c net: avoid limits overflow 2010-11-10 12:12:00 -08:00
tcp_ipv4.c tcp: Don't change unlocked socket state in tcp_v4_err(). 2010-11-12 13:35:00 -08:00
tcp_lp.c
tcp_minisocks.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
tcp_output.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
tcp_probe.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
tcp_scalable.c
tcp_timer.c tcp: use correct counters in CA_CWR state too 2010-10-17 13:46:33 -07:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
tcp_westwood.c net: return operator cleanup 2010-09-23 14:33:39 -07:00
tcp_yeah.c
tcp.c tcp: Increase TCP_MAXSEG socket option minimum. 2010-11-10 21:35:37 -08:00
tunnel4.c tunnels: add __rcu annotations 2010-10-27 11:37:32 -07:00
udp_impl.h
udp.c net: avoid limits overflow 2010-11-10 12:12:00 -08:00
udplite.c
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c net dst: use a percpu_counter to track entries 2010-10-11 13:06:53 -07:00
xfrm4_state.c xfrm: Allow different selector family in temporary state 2010-09-20 11:11:38 -07:00
xfrm4_tunnel.c net: struct xfrm_tunnel in read_mostly section 2010-08-30 13:50:45 -07:00