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900575aa33
mirror_ubuntu-kernels/drivers/net
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Jason A. Donenfeld 900575aa33 wireguard: device: avoid circular netns references 
Before, we took a reference to the creating netns if the new netns was
different. This caused issues with circular references, with two
wireguard interfaces swapping namespaces. The solution is to rather not
take any extra references at all, but instead simply invalidate the
creating netns pointer when that netns is deleted.

In order to prevent this from happening again, this commit improves the
rough object leak tracking by allowing it to account for created and
destroyed interfaces, aside from just peers and keys. That then makes it
possible to check for the object leak when having two interfaces take a
reference to each others' namespaces.

Fixes: e7096c131e ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23 14:50:34 -07:00
..
appletalk treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
arcnet treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
bonding net: change addr_list_lock back to static key 2020-06-09 12:59:45 -07:00
caif treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
can can: peak_canfd: Replace zero-length array with flexible-array 2020-06-15 23:08:31 -05:00
dsa net: dsa: bcm_sf2: Fix node reference count 2020-06-18 20:44:10 -07:00
ethernet mlxsw: spectrum: Do not rely on machine endianness 2020-06-22 16:29:51 -07:00
fddi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
fjes
hamradio Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
hippi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
hyperv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
ieee802154 treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ipa net: ipa: header pad field only valid for AP->modem endpoint 2020-06-11 18:39:08 -07:00
ipvlan
netdevsim netdevsim: Register control traps 2020-06-01 11:49:23 -07:00
phy net: phy: smsc: fix printing too many logs 2020-06-22 16:08:48 -07:00
plip treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ppp treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
slip treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
team treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
usb usbnet: smsc95xx: Fix use-after-free after removal 2020-06-22 16:34:31 -07:00
vmxnet3 vmxnet3: allow rx flow hash ops only when rss is enabled 2020-06-02 15:12:33 -07:00
wan treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
wimax
wireguard wireguard: device: avoid circular netns references 2020-06-23 14:50:34 -07:00
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
xen-netback
bareudp.c bareudp: Fixed multiproto mode configuration 2020-06-18 20:31:11 -07:00
dummy.c
eql.c
geneve.c geneve: allow changing DF behavior after creation 2020-06-19 20:06:34 -07:00
gtp.c
ifb.c
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
LICENSE.SRC
loopback.c
macsec.c net: change addr_list_lock back to static key 2020-06-09 12:59:45 -07:00
macvlan.c net: change addr_list_lock back to static key 2020-06-09 12:59:45 -07:00
macvtap.c
Makefile
mdio.c
mii.c
net_failover.c net_failover: fixed rollback in net_failover_open() 2020-06-02 15:35:53 -07:00
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c
thunderbolt.c
tun.c xdp: Rename convert_to_xdp_frame in xdp_convert_buff_to_frame 2020-06-01 15:02:53 -07:00
veth.c xdp: Rename convert_to_xdp_frame in xdp_convert_buff_to_frame 2020-06-01 15:02:53 -07:00
virtio_net.c xdp: Rename convert_to_xdp_frame in xdp_convert_buff_to_frame 2020-06-01 15:02:53 -07:00
vrf.c
vsockmon.c
vxlan.c vxlan: Remove access to nexthop group struct 2020-06-10 13:20:20 -07:00
xen-netfront.c