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alistair23-linux/net
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Eric Dumazet c191a836a9 tcp: disallow bind() to reuse addr/port 
inet_csk_bind_conflict() logic currently disallows a bind() if
it finds a friend socket (a socket bound on same address/port)
satisfying a set of conditions :

1) Current (to be bound) socket doesnt have sk_reuse set
OR
2) other socket doesnt have sk_reuse set
OR
3) other socket is in LISTEN state

We should add the CLOSE state in the 3) condition, in order to avoid two
REUSEADDR sockets in CLOSE state with same local address/port, since
this can deny further operations.

Note : a prior patch tried to address the problem in a different (and
buggy) way. (commit fda48a0d7a tcp: bind() fix when many ports
are bound).

Reported-by: Gaspar Chilingarov <gasparch@gmail.com>
Reported-by: Daniel Baluta <daniel.baluta@gmail.com>
Tested-by: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-11 14:03:07 -08:00
..
9p net/9p/protocol.c: Remove duplicated macros. 2010-12-08 09:56:28 -08:00
802
8021q
appletalk
atm Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2011-01-07 16:58:04 -08:00
ax25
batman-adv batman-adv: Return hna count on local buffer fill 2010-12-20 10:32:03 -08:00
bluetooth Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/padovan/bluetooth-next-2.6 2011-01-04 14:25:28 -05:00
bridge net: bridge: check the length of skb after nf_bridge_maybe_copy_header() 2011-01-06 11:33:05 -08:00
caif CAIF: Fix IPv6 support in receive path for GPRS/3G 2011-01-10 16:12:00 -08:00
can Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-01-04 11:57:25 -08:00
ceph Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-26 22:37:05 -08:00
core net_sched: factorize qdisc stats handling 2011-01-10 16:07:54 -08:00
dcb dcb: use after free in dcb_flushapp() 2011-01-06 11:16:54 -08:00
dccp dccp: make upper bound for seq_window consistent on 32/64 bit 2011-01-07 12:22:44 +01:00
decnet net: Abstract default MTU metric calculation behind an accessor. 2010-12-14 13:01:14 -08:00
dns_resolver
dsa net/dsa: don't use flush_scheduled_work() 2010-12-24 15:59:06 +01:00
econet Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
ethernet net: Add alloc_netdev_mqs function 2011-01-10 16:05:30 -08:00
ieee802154 net: RCU conversion of dev_getbyhwaddr() and arp_ioctl() 2010-12-08 10:07:24 -08:00
ipv4 tcp: disallow bind() to reuse addr/port 2011-01-11 14:03:07 -08:00
ipv6 tcp: disallow bind() to reuse addr/port 2011-01-11 14:03:07 -08:00
ipx
irda Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-26 22:37:05 -08:00
iucv [S390] irq: have detailed statistics for interrupt types 2011-01-05 12:47:25 +01:00
key
l2tp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
lapb
llc net: RCU conversion of dev_getbyhwaddr() and arp_ioctl() 2010-12-08 10:07:24 -08:00
mac80211 mac80211: remove stray extern 2011-01-05 16:07:12 -05:00
netfilter netlink: test for all flags of the NLM_F_DUMP composite 2011-01-09 16:25:03 -08:00
netlabel net: kill unused macros 2010-12-19 21:59:35 -08:00
netlink netlink: test for all flags of the NLM_F_DUMP composite 2011-01-09 16:25:03 -08:00
netrom
packet net: Use skb_checksum_start_offset() 2010-12-16 14:43:14 -08:00
phonet phonet: some signedness bugs 2011-01-10 13:33:17 -08:00
rds
rfkill
rose
rxrpc
sched net_sched: factorize qdisc stats handling 2011-01-10 16:07:54 -08:00
sctp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-17 12:27:22 -08:00
sunrpc Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2011-01-07 16:58:04 -08:00
tipc tipc: update log.h re-include protection to reflect new name 2011-01-01 14:56:18 -08:00
unix af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks. 2011-01-05 15:38:53 -08:00
wanrouter
wimax
wireless cfg80211: fix transposition of words in printk 2011-01-04 14:43:01 -05:00
x25 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
xfrm netlink: test for all flags of the NLM_F_DUMP composite 2011-01-09 16:25:03 -08:00
compat.c
Kconfig net: Add batman-adv meshing protocol 2010-12-16 13:44:24 -08:00
Makefile net: Add batman-adv meshing protocol 2010-12-16 13:44:24 -08:00
nonet.c
socket.c Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin 2011-01-07 08:56:33 -08:00
sysctl_net.c
TUNABLE