linux_dsm_epyc7002/net
Xufeng Zhang d3217b15a1 sctp: Fix sk_ack_backlog wrap-around problem
Consider the scenario:
For a TCP-style socket, while processing the COOKIE_ECHO chunk in
sctp_sf_do_5_1D_ce(), after it has passed a series of sanity check,
a new association would be created in sctp_unpack_cookie(), but afterwards,
some processing maybe failed, and sctp_association_free() will be called to
free the previously allocated association, in sctp_association_free(),
sk_ack_backlog value is decremented for this socket, since the initial
value for sk_ack_backlog is 0, after the decrement, it will be 65535,
a wrap-around problem happens, and if we want to establish new associations
afterward in the same socket, ABORT would be triggered since sctp deem the
accept queue as full.
Fix this issue by only decrementing sk_ack_backlog for associations in
the endpoint's list.

Fix-suggested-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Xufeng Zhang <xufeng.zhang@windriver.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-12 10:27:14 -07:00
..
9p A bunch of updates and cleanup within the transport layer, 2014-04-11 14:14:57 -07:00
802
8021q Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
appletalk net: Split sk_no_check into sk_no_check_{rx,tx} 2014-05-23 16:28:53 -04:00
atm atm: remove commented out check 2014-05-30 17:17:04 -07:00
ax25 net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
batman-adv net: add __pskb_copy_fclone and pskb_copy_for_clone 2014-06-11 15:38:02 -07:00
bluetooth net: add __pskb_copy_fclone and pskb_copy_for_clone 2014-06-11 15:38:02 -07:00
bridge bridge: Support 802.1ad vlan filtering 2014-06-11 15:22:53 -07:00
caif net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
can can: add hash based access to single EFF frame filters 2014-05-19 09:38:24 +02:00
ceph ceph: remove bogus extern 2014-06-11 15:39:19 -07:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-11 16:02:55 -07:00
dcb net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-04-24 13:44:54 -04:00
dccp net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
decnet net: Split sk_no_check into sk_no_check_{rx,tx} 2014-05-23 16:28:53 -04:00
dns_resolver Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-11 16:02:55 -07:00
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
ethernet
hsr
ieee802154 6lowpan_rtnl: fix off by one while fragmentation 2014-06-02 10:39:42 -07:00
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-11 16:02:55 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-11 16:02:55 -07:00
ipx net: Split sk_no_check into sk_no_check_{rx,tx} 2014-05-23 16:28:53 -04:00
irda
iucv af_iucv: correct cleanup if listen backlog is full 2014-05-30 17:35:23 -07:00
key af_key: Replace comma with semicolon 2014-05-30 17:48:58 -07:00
l2tp l2tp: call udp{6}_set_csum 2014-06-04 22:46:38 -07:00
lapb
llc
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-11 16:02:55 -07:00
mac802154 mac802154: don't deliver packets to devices that are down 2014-06-11 12:10:19 -07:00
mpls gre: Call gso_make_checksum 2014-06-04 22:46:38 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2014-06-05 15:35:04 -07:00
netlabel
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-03 23:32:12 -07:00
netrom net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
nfc net: add __pskb_copy_fclone and pskb_copy_for_clone 2014-06-11 15:38:02 -07:00
openvswitch vxlan: Add support for UDP checksums (v4 sending, v6 zero csums) 2014-06-04 22:46:39 -07:00
packet net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-04-24 13:44:54 -04:00
phonet net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-04-24 13:44:54 -04:00
rds rds/tcp_listen: Replace comma with semicolon 2014-05-30 17:48:58 -07:00
rfkill Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2014-05-22 13:58:36 -04:00
rose net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
rxrpc af_rxrpc: Fix XDR length check in rxrpc key demarshalling. 2014-05-16 15:24:47 -04:00
sched net_sched: drr: warn when qdisc is not work conserving 2014-06-11 15:50:59 -07:00
sctp sctp: Fix sk_ack_backlog wrap-around problem 2014-06-12 10:27:14 -07:00
sunrpc net: Save software checksum complete 2014-06-11 15:46:13 -07:00
tipc net: add __pskb_copy_fclone and pskb_copy_for_clone 2014-06-11 15:38:02 -07:00
unix net: unix: Align send data_len up to PAGE_SIZE 2014-05-16 16:04:03 -04:00
vmw_vsock vsock: Make transport the proto owner 2014-05-05 13:13:50 -04:00
wimax
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2014-05-29 12:55:38 -04:00
x25 net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-06-03 23:32:12 -07:00
compat.c
Kconfig Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2014-04-03 13:05:42 -07:00
Makefile
nonet.c
socket.c net: use SYSCALL_DEFINEx for sys_recv 2014-04-16 15:15:05 -04:00
sysctl_net.c