Mikulas Patocka 22aa66a3ee dm snapshot: fix a possible invalid memory access on unload ... When the snapshot target is unloaded, snapshot_dtr() waits until pending_exceptions_count drops to zero. Then, it destroys the snapshot. Therefore, the function that decrements pending_exceptions_count should not touch the snapshot structure after the decrement. pending_complete() calls free_pending_exception(), which decrements pending_exceptions_count, and then it performs up_write(&s->lock) and it calls retry_origin_bios() which dereferences s->origin. These two memory accesses to the fields of the snapshot may touch the dm_snapshot struture after it is freed. This patch moves the call to free_pending_exception() to the end of pending_complete(), so that the snapshot will not be destroyed while pending_complete() is in progress. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org		2015-02-18 09:41:54 -05:00
..
accessibility
acpi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-02-10 20:01:30 -08:00
amba	ARM: 8256/1: driver coamba: add device binding path 'driver_override'	2015-02-10 10:23:15 +00:00
android
ata	Merge branch 'for-3.20/drivers' of git://git.kernel.dk/linux-block	2015-02-12 14:30:53 -08:00
atm	atm: remove deprecated use of pci api	2015-01-18 00:28:41 -05:00
auxdisplay
base	ACPI and power management updates for v3.20-rc1	2015-02-10 15:09:41 -08:00
bcma	bcma: implement host code support for PCIe Gen 2 devices	2015-01-29 10:54:43 +02:00
block	Merge branch 'for-3.20/drivers' of git://git.kernel.dk/linux-block	2015-02-12 14:30:53 -08:00
bluetooth	Bluetooth: btusb: Add support for Lite-On (04ca) Broadcom based, BCM43142	2015-02-03 08:57:14 +01:00
bus	mvebu fixes for 3.19. (Part 4)	2015-01-23 14:08:13 -08:00
cdrom
char	Merge branch 'for-3.20/bdi' of git://git.kernel.dk/linux-block	2015-02-12 13:50:21 -08:00
clk	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-02-10 20:01:30 -08:00
clocksource	Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2015-02-12 08:51:56 -08:00
connector
coresight
cpufreq	ACPI and power management updates for v3.20-rc1	2015-02-10 15:09:41 -08:00
cpuidle	arm64 updates for 3.20:	2015-02-11 18:03:54 -08:00
crypto
dca
devfreq	ACPI and power management updates for v3.20-rc1	2015-02-10 15:09:41 -08:00
dio
dma	resources: Move struct resource_list_entry from ACPI into resource core	2015-02-05 15:09:25 +01:00
dma-buf
edac	EDAC, mv64x60_edac: Fix an error code in probe()	2015-01-30 17:00:43 +01:00
eisa
extcon
firewire
firmware	arm64 updates for 3.20:	2015-02-11 18:03:54 -08:00
fmc
gpio	Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2015-02-12 08:51:56 -08:00
gpu	sound updates for 3.20-rc1	2015-02-11 08:51:59 -08:00
hid	Merge branches 'for-3.19/upstream-fixes', 'for-3.20/apple', 'for-3.20/betop', 'for-3.20/lenovo', 'for-3.20/logitech', 'for-3.20/rmi', 'for-3.20/upstream' and 'for-3.20/wacom' into for-linus	2015-02-09 11:17:45 +01:00
hsi
hv	ACPICA: Resources: Provide common part for struct acpi_resource_address structures.	2015-01-26 16:09:56 +01:00
hwmon	hwmon: (tmp102) add hibernation callbacks	2015-02-03 12:17:12 -08:00
hwspinlock
i2c	i2c: sh_mobile: terminate DMA reads properly	2015-01-30 17:58:43 +01:00
ide
idle
iio	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-02-11 09:32:08 -08:00
infiniband	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-02-10 20:01:30 -08:00
input	Merge branch 'next' into for-linus	2015-02-10 11:35:36 -08:00
iommu	IOMMU Updates for Linux v3.20	2015-02-12 09:16:56 -08:00
ipack
irqchip	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-02-06 08:28:54 -08:00
isdn	drivers: isdn: isdnloop: isdnloop.c: Remove parenthesis around return values, as specified in CodingStyle.	2015-02-05 15:40:23 -08:00
leds
lguest
macintosh
mailbox	Merge branch 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration	2015-02-11 12:56:40 -08:00
mcb
md	dm snapshot: fix a possible invalid memory access on unload	2015-02-18 09:41:54 -05:00
media	mm: gup: use get_user_pages_unlocked	2015-02-11 17:06:05 -08:00
memory	memory/fsl-corenet-cf: Add t1040 support	2015-01-29 22:57:43 -06:00
memstick
message
mfd	- Avoid platform ID collision in da9052	2015-01-21 18:29:44 +12:00
misc	powerpc updates for 3.20	2015-02-11 18:15:38 -08:00
mmc	mmc: sdhci-s3c: solve problem with sleeping in atomic context	2015-02-04 13:39:14 +01:00
mtd	mtd: export new mtd_mmap_capabilities	2015-01-28 11:09:20 -07:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-02-10 20:01:30 -08:00
nfc	NFC: nci: Move NFCEE discovery logic	2015-02-04 09:15:18 +01:00
ntb
nubus
of	DeviceTree changes for 3.20:	2015-02-12 08:58:43 -08:00
oprofile
parisc
parport
pci	ACPI and power management updates for v3.20-rc1	2015-02-10 15:09:41 -08:00
pcmcia
phy	SCSI misc on 20150209	2015-02-11 10:28:45 -08:00
pinctrl	This is the bulk of pin control changes for the v3.20 cycle:	2015-02-11 11:23:13 -08:00
platform	Revert "platform: x86: dell-laptop: Add support for keyboard backlight"	2015-01-23 11:10:32 -08:00
pnp	ACPI: Return translation offset when parsing ACPI address space resources	2015-02-03 22:27:21 +01:00
power	power_supply: 88pm860x: Fix leaked power supply on probe fail	2015-01-28 15:08:10 +01:00
powercap
pps
ps3	powerpc/ps3: Fix sys-manager-core sparse warnings	2015-01-22 17:31:21 +11:00
ptp
pwm
rapidio	rapidio/tsi721: use PCI define for Max_Read_Request_Size	2015-01-27 08:14:26 -06:00
ras
regulator	Merge remote-tracking branches 'regulator/topic/rk808', 'regulator/topic/rpm', 'regulator/topic/rt5033' and 'regulator/topic/tps65023' into regulator-next	2015-02-08 11:16:30 +08:00
remoteproc
reset
rpmsg
rtc	Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-02-09 17:53:53 -08:00
s390	Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block	2015-02-12 14:13:23 -08:00
sbus
scsi	Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block	2015-02-12 14:13:23 -08:00
sfi
sh
sn
soc
spi	Merge remote-tracking branch 'spi/topic/xilinx' into spi-next	2015-02-08 11:17:01 +08:00
spmi
ssb	ssb: Fix Sparse error in main	2015-01-29 10:17:56 +02:00
staging	Merge branch 'for-3.20/bdi' of git://git.kernel.dk/linux-block	2015-02-12 13:50:21 -08:00
target	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
tc
thermal	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-01-27 16:59:56 -08:00
thunderbolt
tty	Merge branch 'akpm' (patches from Andrew)	2015-02-11 18:23:28 -08:00
uio
usb	xilinx usb2 gadget: get rid of incredibly annoying compile warning	2015-02-11 10:52:56 -08:00
uwb
vfio
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-02-05 14:33:28 -08:00
video	mm: gup: use get_user_pages_unlocked	2015-02-11 17:06:05 -08:00
virt
virtio
vlynq
vme
w1
watchdog	watchdog: drop owner assignment from platform_drivers	2015-01-21 14:52:34 +01:00
xen	SCSI misc on 20150209	2015-02-11 10:28:45 -08:00
zorro
Kconfig	drivers/Kconfig: remove duplicate entry for soc	2015-01-25 20:26:42 +08:00
Makefile