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linux/net/ipv4
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Ilpo Järvinen 45e77d3145 tcp: fix crash in tcp_xmit_retransmit_queue 
It can happen that there are no packets in queue while calling
tcp_xmit_retransmit_queue(). tcp_write_queue_head() then returns
NULL and that gets deref'ed to get sacked into a local var.

There is no work to do if no packets are outstanding so we just
exit early.

This oops was introduced by 08ebd1721ab8fd (tcp: remove tp->lost_out
guard to make joining diff nicer).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Reported-by: Lennart Schulte <lennart.schulte@nets.rwth-aachen.de>
Tested-by: Lennart Schulte <lennart.schulte@nets.rwth-aachen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-07-19 12:43:49 -07:00
..
netfilter
netfilter: xtables: stackptr should be percpu
2010-05-31 16:41:35 +02:00
af_inet.c
net: reserve ports for applications using fixed port numbers
2010-05-15 23:28:40 -07:00
ah4.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
arp.c
net: Use ip_route_input_noref() in input path
2010-05-17 17:18:51 -07:00
cipso_ipv4.c
net: Remove unnecessary returns from void function()s
2010-05-17 23:23:14 -07:00
datagram.c
inet: rename some inet_sock fields
2009-10-18 18:52:53 -07:00
devinet.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-04-11 14:53:53 -07:00
esp4.c
xfrm: SA lookups signature with mark
2010-02-22 16:20:22 -08:00
fib_frontend.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
fib_hash.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
fib_lookup.h
ipv4: cleanup - remove two unused parameters from fib_semantic_match().
2009-05-18 15:16:37 -07:00
fib_rules.c
net: rtnetlink: decouple rtnetlink address families from real address families
2010-04-26 16:13:54 +02:00
fib_semantics.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
fib_trie.c
net: Remove unnecessary returns from void function()s
2010-05-17 23:23:14 -07:00
icmp.c
net: add a noref bit on skb dst
2010-05-17 17:18:50 -07:00
igmp.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-04-11 14:53:53 -07:00
inet_connection_sock.c
net: reserve ports for applications using fixed port numbers
2010-05-15 23:28:40 -07:00
inet_diag.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
inet_fragment.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
inet_hashtables.c
net: reserve ports for applications using fixed port numbers
2010-05-15 23:28:40 -07:00
inet_lro.c
net/ipv4: Move && and || to end of previous line
2009-11-23 10:41:23 -08:00
inet_timewait_sock.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
inetpeer.c
inetpeer: Optimize inet_getid()
2009-11-13 20:46:58 -08:00
ip_forward.c
Merge branch 'master' of /repos/git/net-next-2.6
2010-04-20 16:02:01 +02:00
ip_fragment.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
ip_gre.c
net: Remove unnecessary returns from void function()s
2010-05-17 23:23:14 -07:00
ip_input.c
net: Use ip_route_input_noref() in input path
2010-05-17 17:18:51 -07:00
ip_options.c
net: Remove unnecessary returns from void function()s
2010-05-17 23:23:14 -07:00
ip_output.c
udp: Fix bogus UFO packet generation
2010-06-21 13:57:34 -07:00
ip_sockglue.c
net: ip_queue_rcv_skb() helper
2010-04-28 15:31:51 -07:00
ipcomp.c
xfrm: SA lookups signature with mark
2010-02-22 16:20:22 -08:00
ipconfig.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-04-11 14:53:53 -07:00
ipip.c
net: Introduce skb_tunnel_rx() helper
2010-05-17 22:36:55 -07:00
ipmr.c
ipmr: Don't leak memory if fib lookup fails.
2010-07-15 22:38:43 -07:00
Kconfig
syncookies: remove Kconfig text line about disabled-by-default
2010-06-04 15:56:01 -07:00
Makefile
…
netfilter.c
net: add a noref bit on skb dst
2010-05-17 17:18:50 -07:00
proc.c
tcp: Add SNMP counter for DEFER_ACCEPT
2010-03-21 18:31:35 -07:00
protocol.c
net: constify struct net_protocol
2009-09-14 17:03:01 -07:00
raw.c
Merge branch 'master' of /repos/git/net-next-2.6
2010-05-10 18:39:28 +02:00
route.c
net: implements ip_route_input_noref()
2010-05-17 17:18:51 -07:00
syncookies.c
tcp: use correct net ns in cookie_v4_check()
2010-06-04 15:56:03 -07:00
sysctl_net_ipv4.c
net: reserve ports for applications using fixed port numbers
2010-05-15 23:28:40 -07:00
tcp_bic.c
tcp: add helper for AI algorithm
2009-03-02 03:00:15 -08:00
tcp_cong.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
tcp_cubic.c
tcp: add helper for AI algorithm
2009-03-02 03:00:15 -08:00
tcp_diag.c
tcp: diag: Dont report negative values for rx queue
2009-12-03 16:06:13 -08:00
tcp_highspeed.c
…
tcp_htcp.c
net/ipv4: Move && and || to end of previous line
2009-11-23 10:41:23 -08:00
tcp_hybla.c
TCP: tcp_hybla: Fix integer overflow in slow start increment
2010-06-02 07:15:48 -07:00
tcp_illinois.c
…
tcp_input.c
net/ipv4/tcp_input.c: fix compilation breakage when FASTRETRANS_DEBUG > 1
2010-05-31 23:52:39 -07:00
tcp_ipv4.c
rps: tcp: fix rps_sock_flow_table table updates
2010-06-04 15:56:02 -07:00
tcp_lp.c
net/ipv4: Move && and || to end of previous line
2009-11-23 10:41:23 -08:00
tcp_minisocks.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-04-11 14:53:53 -07:00
tcp_output.c
tcp: fix crash in tcp_xmit_retransmit_queue
2010-07-19 12:43:49 -07:00
tcp_probe.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
tcp_scalable.c
tcp: add helper for AI algorithm
2009-03-02 03:00:15 -08:00
tcp_timer.c
TCP: avoid to send keepalive probes if receiving data
2010-04-27 12:53:25 -07:00
tcp_vegas.c
tcp: tcp_vegas ssthresh bugfix
2009-05-25 22:44:59 -07:00
tcp_vegas.h
…
tcp_veno.c
net/ipv4: Move && and || to end of previous line
2009-11-23 10:41:23 -08:00
tcp_westwood.c
…
tcp_yeah.c
net/ipv4: Move && and || to end of previous line
2009-11-23 10:41:23 -08:00
tcp.c
rfs: call sock_rps_record_flow() in tcp_splice_read()
2010-07-14 14:45:15 -07:00
tunnel4.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
udp_impl.h
net: Make setsockopt() optlen be unsigned.
2009-09-30 16:12:20 -07:00
udp.c
net: sock_queue_err_skb() dont mess with sk_forward_alloc
2010-05-31 23:44:05 -07:00
udplite.c
net: spread __net_init, __net_exit
2010-01-17 19:16:02 -08:00
xfrm4_input.c
net: Use ip_route_input_noref() in input path
2010-05-17 17:18:51 -07:00
xfrm4_mode_beet.c
…
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
xfrm4_output.c
netfilter: ipv4: use NFPROTO values for NF_HOOK invocation
2010-03-25 16:00:30 +01:00
xfrm4_policy.c
xfrm: fix xfrm by MARK logic
2010-07-04 11:46:07 -07:00
xfrm4_state.c
…
xfrm4_tunnel.c
…