Elena Reshetova a4b51a9f83 drivers, net, mlx5: convert mlx5_cq.refcount from atomic_t to refcount_t ... atomic_t variables are currently used to implement reference counters with the following properties: - counter is initialized to 1 using atomic_set() - a resource is freed upon counter reaching zero - once counter reaches zero, its further increments aren't allowed - counter schema uses basic atomic operations (set, inc, inc_not_zero, dec_and_test, etc.) Such atomic variables should be converted to a newly provided refcount_t type and API that prevents accidental counter overflows and underflows. This is important since overflows and underflows can lead to use-after-free situation and be exploitable. The variable mlx5_cq.refcount is used as pure reference counter. Convert it to refcount_t and fix up the operations. Suggested-by: Kees Cook <keescook@chromium.org> Reviewed-by: David Windsor <dwindsor@gmail.com> Reviewed-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-10-22 02:22:38 +01:00
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appletalk
arcnet
bonding
caif
can
cris
dsa
ethernet	drivers, net, mlx5: convert mlx5_cq.refcount from atomic_t to refcount_t	2017-10-22 02:22:38 +01:00
fddi
fjes
hamradio
hippi
hyperv
ieee802154	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2017-10-21 02:22:19 +01:00
ipvlan	net: Add extack to validator_info structs used for address notifier	2017-10-20 13:15:07 +01:00
phy
plip
ppp
slip
team
usb
vmxnet3
wan
wimax
wireless
xen-netback
dummy.c
eql.c
geneve.c
gtp.c
ifb.c
Kconfig
LICENSE.SRC
loopback.c
macsec.c
macvlan.c
macvtap.c
Makefile
mdio.c
mii.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c
thunderbolt.c
tun.c	net-tun: fix panics at dismantle time	2017-10-20 13:31:26 +01:00
veth.c
virtio_net.
virtio_net.c
vrf.c
vsockmon.c
vxlan.c
xen-netfront.c