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7379e6baeddf580d01feca650ec1ad508b6ea8ee
linux/drivers
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Ian Abbott 7379e6baed staging: comedi: amplc_pci230: fix null pointer deref on interrupt 
The interrupt handler `pci230_interrupt()` causes a null pointer
dereference for a PCI260 card.  There is no analog output subdevice for
a PCI260.  The `dev->write_subdev` subdevice pointer and therefore the
`s_ao` subdevice pointer variable will be `NULL` for a PCI260.  The
following call near the end of the interrupt handler results in the null
pointer dereference for a PCI260:

	comedi_handle_events(dev, s_ao);

Fix it by only calling the above function if `s_ao` is valid.

Note that the other uses of `s_ao` in the calls
`pci230_handle_ao_nofifo(dev, s_ao);` and `pci230_handle_ao_fifo(dev,
s_ao);` will never be reached for a PCI260, so they are safe.

Fixes: 39064f2328 ("staging: comedi: amplc_pci230: use comedi_handle_events()")
Cc: <stable@vger.kernel.org> # v3.19+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-01 08:50:15 +02:00
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accessibility
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acpi
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amba
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2019-06-19 17:09:55 +02:00
android
binder: fix possible UAF when freeing buffer
2019-06-13 10:35:55 +02:00
ata
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2019-06-19 17:09:55 +02:00
atm
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auxdisplay
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2019-05-30 11:26:32 -07:00
base
drivers/base/devres: introduce devm_release_action()
2019-06-13 17:34:56 -10:00
bcma
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block
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2019-06-19 17:09:55 +02:00
bluetooth
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2019-06-05 17:37:06 +02:00
bus
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
cdrom
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char
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clk
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clocksource
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connector
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counter
Merge tag 'iio-fixes-for-5.2b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
2019-06-17 22:28:29 +02:00
cpufreq
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crypto
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dax
mm/devm_memremap_pages: fix final page put race
2019-06-13 17:34:56 -10:00
dca
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devfreq
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dio
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dma
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dma-buf
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extcon
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firewire
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2019-05-30 11:26:35 -07:00
firmware
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
fmc
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2019-05-24 17:36:45 +02:00
fpga
Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-06-08 12:52:42 -07:00
fsi
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2019-05-21 10:50:46 +02:00
gpio
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2019-06-19 17:09:55 +02:00
gpu
Merge tag 'drm-fixes-2019-06-21' of git://anongit.freedesktop.org/drm/drm
2019-06-21 11:03:33 -07:00
hid
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hsi
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hwmon
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hwspinlock
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hwtracing
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i2c
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idle
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2019-06-05 17:37:06 +02:00
iio
Merge 5.2-rc6 into staging-next
2019-06-23 13:29:03 +02:00
infiniband
RDMA/efa: Handle mmap insertions overflow
2019-06-18 16:27:24 -04:00
input
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
interconnect
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
iommu
Merge tag 'iommu-fix-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
2019-06-22 14:08:47 -07:00
ipack
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2019-06-05 17:37:17 +02:00
irqchip
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
isdn
Merge tag 'spdx-5.2-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-05-31 08:34:32 -07:00
leds
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macintosh
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mcb
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2019-06-05 17:37:17 +02:00
md
md: fix for divide error in status_resync
2019-06-18 08:02:25 -07:00
media
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2019-06-19 17:09:55 +02:00
memory
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2019-06-19 17:09:55 +02:00
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Merge tag 'char-misc-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-06-21 10:18:16 -07:00
mmc
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
mtd
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net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-06-21 22:23:35 -07:00
nfc
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nubus
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2019-05-21 10:50:46 +02:00
nvdimm
mm/devm_memremap_pages: fix final page put race
2019-06-13 17:34:56 -10:00
nvme
Merge branch 'nvme-5.2-rc-next' of git://git.infradead.org/nvme into for-linus
2019-06-07 14:04:28 -06:00
nvmem
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parisc
Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-06-08 12:52:42 -07:00
parport
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2019-06-19 17:09:55 +02:00
pci
Merge tag 'pci-v5.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2019-06-22 09:42:29 -07:00
pcmcia
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perf
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phy
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rapidio
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ras
RAS/CEC: Convert the timer callback to a workqueue
2019-06-07 23:21:39 +02:00
regulator
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remoteproc
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s390
vfio-ccw: Destroy kmem cache region on module exit
2019-06-13 15:52:28 +02:00
sbus
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-06-22 09:39:03 -07:00
sfi
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sh
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siox
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slimbus
slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register
2019-04-25 22:23:06 +02:00
sn
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2019-05-21 10:50:46 +02:00
soc
Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2019-06-21 09:58:42 -07:00
soundwire
Merge tag 'soundwire-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-linus
2019-06-10 18:07:39 +02:00
spi
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ssb
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2019-05-21 10:50:46 +02:00
staging
staging: comedi: amplc_pci230: fix null pointer deref on interrupt
2019-07-01 08:50:15 +02:00
target
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2019-06-19 17:09:55 +02:00
tc
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tee
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thermal
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thunderbolt
thunderbolt: Implement CIO reset correctly for Titan Ridge
2019-06-14 14:25:43 +03:00
tty
vt/fbcon: deinitialize resources in visual_init() after failed memory allocation
2019-05-24 17:08:18 +02:00
uio
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2019-06-19 17:09:55 +02:00
usb
Merge tag 'fixes-for-v5.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
2019-06-20 11:56:35 +02:00
uwb
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vfio
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video
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virt
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2019-05-21 10:50:46 +02:00
virtio
virtio: Fix indentation of VIRTIO_MMIO
2019-05-27 11:08:22 -04:00
visorbus
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zorro
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2019-05-21 10:50:46 +02:00
Kconfig
counter: Introduce the Generic Counter interface
2019-04-25 21:33:37 +02:00
Makefile
counter: Introduce the Generic Counter interface
2019-04-25 21:33:37 +02:00