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David Howells d3be4d2443 rxrpc: Fix potential call vs socket/net destruction race 
rxrpc_call structs don't pin sockets or network namespaces, but may attempt
to access both after their refcount reaches 0 so that they can detach
themselves from the network namespace.  However, there's no guarantee that
the socket still exists at this point (so sock_net(&call->socket->sk) may
be invalid) and the namespace may have gone away if the call isn't pinning
a peer.

Fix this by (a) carrying a net pointer in the rxrpc_call struct and (b)
waiting for all calls to be destroyed when the network namespace goes away.

This was detected by checker:

net/rxrpc/call_object.c:634:57: warning: incorrect type in argument 1 (different address spaces)
net/rxrpc/call_object.c:634:57:    expected struct sock const *sk
net/rxrpc/call_object.c:634:57:    got struct sock [noderef] <asn:4>*<noident>

Fixes: 2baec2c3f8 ("rxrpc: Support network namespacing")
Signed-off-by: David Howells <dhowells@redhat.com>
2018-03-30 21:05:23 +01:00
..
6lowpan License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
9p virtio: bugfixes 2018-02-15 14:29:27 -08:00
802 treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
8021q net: Call add/kill vid ndo on vlan filter feature toggling 2018-03-30 09:58:59 -04:00
appletalk net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
atm net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
ax25 net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
bluetooth net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
bpf bpf: fix null pointer deref in bpf_prog_test_run_xdp 2018-02-01 07:43:56 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2018-03-30 11:41:18 -04:00
caif net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
can net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ceph net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
core net: Close race between {un, }register_netdevice_notifier() and setup_net()/cleanup_net() 2018-03-30 10:59:35 -04:00
dcb
dccp net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
decnet net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
dns_resolver net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
ethernet
hsr net: hsr: Convert timers to use timer_setup() 2017-10-25 13:00:27 +09:00
ieee802154 net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ife MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2018-03-30 11:41:18 -04:00
ipv6 ipv6: do not set routes if disable_ipv6 has been enabled 2018-03-30 12:20:52 -04:00
iucv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
kcm net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
key net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
l2tp net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
l3mdev
lapb treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
llc net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
mac80211 We have a fair number of patches, but many of them are from the 2018-03-29 16:23:26 -04:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
mpls net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ncsi net/ncsi: check for null return from call to nla_nest_start 2018-03-27 10:38:26 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2018-03-30 11:41:18 -04:00
netlabel net/netlabel: Add list_next_rcu() in rcu_dereference(). 2017-11-18 10:32:41 +09:00
netlink net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
netrom net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-19 18:46:11 -05:00
nsh openvswitch: enable NSH support 2017-11-08 16:12:33 +09:00
openvswitch ovs: Remove rtnl_lock() from ovs_exit_net() 2018-03-29 13:47:54 -04:00
packet net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
phonet net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
psample MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
qrtr Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-06 01:20:46 -05:00
rds net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
rfkill vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
rose net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
rxrpc rxrpc: Fix potential call vs socket/net destruction race 2018-03-30 21:05:23 +01:00
sched net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
sctp sctp: fix unused lable warning 2018-03-29 14:38:27 -04:00
smc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
strparser strparser: Call sock_owned_by_user_nocheck 2017-12-28 14:28:22 -05:00
sunrpc net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
switchdev net: bridge: Add/del switchdev object on host join/leave 2017-11-10 13:41:40 +09:00
tipc net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
tls tls: RX path for ktls 2018-03-23 12:25:54 -04:00
unix net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
vmw_vsock net: make getname() functions return length rather than use int* parameter 2018-02-12 14:15:04 -05:00
wimax License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wireless We have a fair number of patches, but many of them are from the 2018-03-29 16:23:26 -04:00
x25 net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
xfrm xfrm: Register xfrm_dev_notifier in appropriate place 2018-03-30 10:59:23 -04:00
compat.c
Kconfig Staging/IIO patches for 4.16-rc1 2018-02-01 09:51:57 -08:00
Makefile ipx: move Novell IPX protocol support into staging 2017-11-28 13:55:00 +01:00
socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
sysctl_net.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00