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0fb44559ff
linux/net
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WANG Cong 0fb44559ff af_unix: move unix_mknod() out of bindlock 
Dmitry reported a deadlock scenario:

unix_bind() path:
u->bindlock ==> sb_writer

do_splice() path:
sb_writer ==> pipe->mutex ==> u->bindlock

In the unix_bind() code path, unix_mknod() does not have to
be done with u->bindlock held, since it is a pure fs operation,
so we can just move unix_mknod() out.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24 14:30:56 -05:00
..
6lowpan
9p
802 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
8021q Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
appletalk
atm net: atm: Fix warnings in net/atm/lec.c when !CONFIG_PROC_FS 2016-12-28 15:11:32 -05:00
ax25 ax25: Fix segfault after sock connection timeout 2017-01-16 14:39:58 -05:00
batman-adv
bluetooth
bridge bridge: netlink: call br_changelink() during br_dev_newlink() 2017-01-20 15:07:27 -05:00
caif
can ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
ceph
core lwtunnel: fix autoload of lwt modules 2017-01-18 17:07:14 -05:00
dcb
dccp
decnet Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dns_resolver
dsa net: dsa: Check return value of phy_connect_direct() 2017-01-23 15:43:35 -05:00
ethernet
hsr
ieee802154
ipv4 tcp: initialize max window for a new fastopen socket 2017-01-19 11:35:26 -05:00
ipv6 ipv6: seg6_genl_set_tunsrc() must check kmemdup() return value 2017-01-20 11:07:48 -05:00
ipx ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
irda Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
iucv net/af_iucv: don't use paged skbs for TX on HiperSockets 2017-01-10 21:08:29 -05:00
kcm
key
l2tp l2tp: take remote address into account in l2tp_ip and l2tp_ip6 socket lookups 2017-01-01 22:07:20 -05:00
l3mdev
lapb Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
llc
mac80211 mac80211: don't try to sleep in rate_control_rate_init() 2017-01-24 16:31:54 +01:00
mac802154 ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
mpls net: mpls: Fix multipath selection for LSR use case 2017-01-23 12:48:14 -05:00
ncsi
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2017-01-05 11:49:57 -05:00
netlabel netlabel: add CALIPSO to the list of built-in protocols 2017-01-06 22:20:45 -05:00
netlink Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
netrom
nfc
openvswitch openvswitch: maintain correct checksum state in conntrack actions 2017-01-15 22:15:16 -05:00
packet virtio-net: restore VIRTIO_HDR_F_DATA_VALID on receiving 2017-01-20 11:01:17 -05:00
phonet
qrtr net: qrtr: Mark 'buf' as little endian 2017-01-10 20:45:04 -05:00
rds RDS: use rb_entry() 2016-12-20 14:22:49 -05:00
rfkill
rose Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
rxrpc
sched net sched actions: fix refcnt when GETing of action after bind 2017-01-16 19:43:19 -05:00
sctp Revert "net: sctp: fix array overrun read on sctp_timer_tbl" 2017-01-20 11:29:43 -05:00
strparser
sunrpc svcrdma: avoid duplicate dma unmapping during error recovery 2017-01-12 16:14:47 -05:00
switchdev
tipc tipc: allocate user memory with GFP_KERNEL flag 2017-01-16 13:31:53 -05:00
unix af_unix: move unix_mknod() out of bindlock 2017-01-24 14:30:56 -05:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-17 20:17:04 -08:00
wimax
wireless cfg80211: consider VHT opmode on station update 2017-01-11 16:34:25 +01:00
x25 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
xfrm ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
compat.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Kconfig cgroup: move CONFIG_SOCK_CGROUP_DATA to init/Kconfig 2017-01-11 09:47:10 -05:00
Makefile
socket.c net: socket: Make unnecessarily global sockfs_setattr() static 2017-01-10 11:29:50 -05:00
sysctl_net.c