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16d25da94f
mirror_ubuntu-kernels/drivers/net
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Amitkumar Karwar 16d25da94f mwifiex: fix NULL pointer dereference during suspend 
This patch fixes below NULL pointer dereference observed in suspend
stress test. When scan is cancelled during system suspend, we may end
up aceesing "priv->scan_request" in corner case.

[ 3035.304682] BUG: KASAN: null-ptr-deref on address 0000000000000008
[ 3035.304704] Read of size 4 by task ksdioirqd/mmc2/1183
[ 3035.304744] CPU: 0 PID: 1183 Comm: ksdioirqd/mmc2 Tainted: G        W      3.18.0 #1169
[ 3035.304772] Call trace:
[ 3035.304825] [<ffffffc00020a520>] dump_backtrace+0x0/0x190
[ 3035.304864] [<ffffffc00020a6cc>] show_stack+0x1c/0x28
[ 3035.304901] [<ffffffc000b36db8>] dump_stack+0xa0/0xf8
[ 3035.304940] [<ffffffc00039c494>] kasan_report+0x120/0x4fc
[ 3035.304975] [<ffffffc00039b6b4>] __asan_load4+0x20/0x80
[ 3035.305546] [<ffffffbffc1f5aec>] mwifiex_check_next_scan_command+0x1a4/0x588 [mwifiex]
[ 3035.306091] [<ffffffbffc1f7aec>] mwifiex_handle_event_ext_scan_report+0x304/0x370 [mwifiex]
[ 3035.306735] [<ffffffbffc206bb8>] mwifiex_process_sta_event+0x6c0/0xf10 [mwifiex]
[ 3035.307200] [<ffffffbffc1e609c>] mwifiex_process_event+0x2f4/0x358 [mwifiex]
[ 3035.307612] [<ffffffbffc1e25c8>] mwifiex_main_process+0x3cc/0x80c [mwifiex]
[ 3035.307737] [<ffffffbffc2523a0>] mwifiex_sdio_interrupt+0x198/0x1c0 [mwifiex_sdio]
[ 3035.307785] [<ffffffc0008d9250>] process_sdio_pending_irqs+0x15c/0x1d4
[ 3035.307826] [<ffffffc0008d93f0>] sdio_irq_thread+0xd8/0x288

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-07-08 12:59:28 +03:00
..
appletalk treewide: replace dev->trans_start update with helper 2016-05-04 14:16:49 -04:00
arcnet
bonding net: add netdev_lockdep_set_classes() helper 2016-06-09 13:28:37 -07:00
caif
can can: mcp251x: add message about sucessful/unsuccessful probe 2016-06-23 11:23:49 +02:00
cris treewide: replace dev->trans_start update with helper 2016-05-04 14:16:49 -04:00
dsa net: dsa: mv88e6xxx: rename single-chip support 2016-06-25 11:29:47 -04:00
ethernet net: ethernet: ti: cpdma: switch to use genalloc 2016-06-29 04:16:11 -04:00
fddi
fjes net: fjes: fjes_main: Remove create_workqueue 2016-06-03 19:29:42 -04:00
hamradio hamradio: baycom: fix old-style declaration 2016-06-16 22:06:30 -07:00
hippi
hyperv netvsc: get rid of completion timeouts 2016-06-09 11:40:05 -07:00
ieee802154 net: ieee802154/adf7242: syntax error ifdef DEBUG 2016-05-19 11:30:56 -07:00
ipvlan net: ipvlan: call netdev_lockdep_set_classes() 2016-06-09 13:28:37 -07:00
irda net: irda: avoid null pointer dereference 2016-05-19 11:30:57 -07:00
phy phy: improve safety of fixed-phy MII register reading 2016-06-27 10:40:57 -04:00
plip
ppp net: add netdev_lockdep_set_classes() helper 2016-06-09 13:28:37 -07:00
slip treewide: replace dev->trans_start update with helper 2016-05-04 14:16:49 -04:00
team net: add netdev_lockdep_set_classes() helper 2016-06-09 13:28:37 -07:00
usb r8152: modify the check of the flag of PHY_RESET in set_speed function 2016-06-16 17:08:33 -07:00
vmxnet3 vmxnet3: update to version 3 2016-06-16 22:37:05 -07:00
wan Maxim/driver: Add driver for maxim ds26522 2016-06-29 04:05:14 -04:00
wimax treewide: replace dev->trans_start update with helper 2016-05-04 14:16:49 -04:00
wireless mwifiex: fix NULL pointer dereference during suspend 2016-07-08 12:59:28 +03:00
xen-netback xen-netback: only deinitialized hash if it was initialized 2016-05-20 17:41:18 -04:00
dummy.c
eql.c
geneve.c net: Merge VXLAN and GENEVE push notifiers into a single notifier 2016-06-17 20:23:29 -07:00
gtp.c gtp: remove unused including <linux/version.h> 2016-06-17 22:28:49 -07:00
ifb.c ifb: support more features 2016-05-09 00:00:28 -04:00
Kconfig gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U) 2016-05-10 12:25:04 -04:00
LICENSE.SRC
loopback.c loopback: make use of NETIF_F_GSO_SOFTWARE 2016-06-03 19:37:21 -04:00
macsec.c macsec: fix netlink attribute for key id 2016-05-20 11:14:13 -07:00
macvlan.c net: macvlan: call netdev_lockdep_set_classes() 2016-06-09 13:28:37 -07:00
macvtap.c macvtap: use common code for virtio_net_hdr and skb GSO conversion 2016-06-10 23:03:55 -07:00
Makefile gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U) 2016-05-10 12:25:04 -04:00
mdio.c
mii.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c drivers: net: remove NETDEV_TX_LOCKED 2016-04-26 15:53:05 -04:00
sb1000.c
Space.c net: Fix coding style warnings and errors. 2016-05-19 11:48:27 -07:00
sungem_phy.c
tun.c tun: fix csum generation for tap devices 2016-06-15 14:00:33 -07:00
veth.c
virtio_net.c virtio_net: fix csum generation for virtio-net devices 2016-06-14 03:03:34 -04:00
vrf.c net: vrf: Implement get_saddr for IPv6 2016-06-17 21:25:29 -07:00
vxlan.c vxlan: Add new UDP encapsulation offload type for VXLAN-GPE 2016-06-17 20:23:32 -07:00
xen-netfront.c