Jiri Bohac 3e5b12de56 ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg ... [ Upstream commit 01462405f0c093b2f8dfddafcadcda6c9e4c5cdf ] This fixes an old regression introduced by commit b0d0d915 (ipx: remove the BKL). When a recvmsg syscall blocks waiting for new data, no data can be sent on the same socket with sendmsg because ipx_recvmsg() sleeps with the socket locked. This breaks mars-nwe (NetWare emulator): - the ncpserv process reads the request using recvmsg - ncpserv forks and spawns nwconn - ncpserv calls a (blocking) recvmsg and waits for new requests - nwconn deadlocks in sendmsg on the same socket Commit b0d0d915 has simply replaced BKL locking with lock_sock/release_sock. Unlike now, BKL got unlocked while sleeping, so a blocking recvmsg did not block a concurrent sendmsg. Only keep the socket locked while actually working with the socket data and release it prior to calling skb_recv_datagram(). Signed-off-by: Jiri Bohac <jbohac@suse.cz> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-12-06 15:05:47 -08:00
..
9p	9p/trans_virtio.c: Fix broken zero-copy on vmalloc() buffers	2014-03-06 21:30:03 -08:00
802	net/802/mrp: fix lockdep splat	2013-05-14 13:02:30 -07:00
8021q	8021q: fix a potential memory leak	2014-07-28 08:00:04 -07:00
appletalk	appletalk: Fix socket referencing in skb	2014-07-28 08:00:05 -07:00
atm	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
ax25	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
batman-adv	batman-adv: set up network coding packet handlers during module init	2013-11-20 12:27:47 -08:00
bluetooth	Bluetooth: Avoid use of session socket after the session gets freed	2014-09-17 09:04:00 -07:00
bridge	br: fix use of ->rx_handler_data in code executed on non-rx_handler path	2014-11-21 09:22:54 -08:00
caif	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
can	net: Use netlink_ns_capable to verify the permisions of netlink messages	2014-06-26 15:12:37 -04:00
ceph	libceph: do not crash on large auth tickets	2014-11-21 09:22:53 -08:00
core	iovec: make sure the caller actually wants anything in memcpy_fromiovecend	2014-08-14 09:24:15 +08:00
dcb	net: Use netlink_ns_capable to verify the permisions of netlink messages	2014-06-26 15:12:37 -04:00
dccp	net:dccp: do not report ICMP redirects to user space	2013-10-13 16:08:30 -07:00
decnet	net: Use netlink_ns_capable to verify the permisions of netlink messages	2014-06-26 15:12:37 -04:00
dns_resolver	dns_resolver: Null-terminate the right string	2014-07-28 08:00:06 -07:00
dsa
ethernet
ieee802154	6lowpan: fix lockdep splats	2014-03-06 21:30:02 -08:00
ipv4	ipv4: Fix incorrect error code when adding an unreachable route	2014-12-06 15:05:46 -08:00
ipv6	gre6: Move the setting of dev->iflink into the ndo_init functions.	2014-11-21 09:22:51 -08:00
ipx	ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg	2014-12-06 15:05:47 -08:00
irda	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
iucv	af_iucv: wrong mapping of sent and confirmed skbs	2014-06-30 20:09:40 -07:00
key	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
l2tp	l2tp: fix race while getting PMTU on PPP pseudo-wire	2014-10-15 08:31:57 +02:00
lapb
llc	net: llc: fix use after free in llc_ui_recvmsg	2014-01-15 15:28:50 -08:00
mac80211	mac80211: fix use-after-free in defragmentation	2014-11-21 09:22:53 -08:00
mac802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
netfilter	netfilter: nf_nat: fix oops on netns removal	2014-11-21 09:22:54 -08:00
netlabel	netlabel: improve domain mapping validation	2013-05-19 14:49:55 -07:00
netlink	fix misuses of f_count() in ppp and netlink	2014-11-14 08:47:55 -08:00
netrom	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
nfc	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
openvswitch	openvswitch: fix panic with multiple vlan headers	2014-10-15 08:31:57 +02:00
packet	packet: handle too big packets for PACKET_V3	2014-10-15 08:31:56 +02:00
phonet	net: Use netlink_ns_capable to verify the permisions of netlink messages	2014-06-26 15:12:37 -04:00
rds	rds: prevent dereference of a NULL device in rds_iw_laddr_check	2014-04-14 06:42:18 -07:00
rfkill	Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next	2013-04-22 14:58:14 -04:00
rose	net: rose: restore old recvmsg behavior	2014-01-15 15:28:49 -08:00
rxrpc	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
sched	net: Use netlink_ns_capable to verify the permisions of netlink messages	2014-06-26 15:12:37 -04:00
sctp	net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks	2014-11-21 09:22:55 -08:00
sunrpc	svcrdma: Select NFSv4.1 backchannel transport based on forward channel	2014-09-05 16:28:37 -07:00
tipc	tipc: clear 'next'-pointer of message fragments before reassembly	2014-07-28 08:00:05 -07:00
unix	net: unix: non blocking recvmsg() should not return -EINTR	2014-04-14 06:42:15 -07:00
vmw_vsock	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
wimax
wireless	nl80211: clear skb cb before passing to netlink	2014-10-09 12:18:43 -07:00
x25	net: rework recvmsg handler msg_name and msg_namelen logic	2013-12-08 07:29:25 -08:00
xfrm	net: Use netlink_ns_capable to verify the permisions of netlink messages	2014-06-26 15:12:37 -04:00
compat.c	net: sendmsg: fix NULL pointer dereference	2014-08-14 09:24:15 +08:00
Kconfig	netlink: kconfig: move mmap i/o into netlink kconfig	2013-05-01 15:02:42 -04:00
Makefile
nonet.c
socket.c	net: socket: error on a negative msg_namelen	2014-04-14 06:42:16 -07:00
sysctl_net.c	net: Update the sysctl permissions handler to test effective uid/gid	2013-10-13 16:08:34 -07:00