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Alexander Shishkin bf7cbaae08 stm class: Prevent division by zero 
Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM
device that supplies zero mmio channel size, will trigger a division by
zero bug in the kernel.

Prevent this by disallowing channel widths other than 1 for such devices.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices")
CC: stable@vger.kernel.org # v4.4+
2019-02-21 17:44:18 +02:00
..
accessibility
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acpi
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
amba
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android
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ata
for-4.21/libata-20190102
2019-01-02 18:47:56 -08:00
atm
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auxdisplay
auxdisplay: charlcd: fix x/y command parsing
2018-12-21 21:27:21 +01:00
base
Merge branch 'mount.part1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-01-05 13:25:58 -08:00
bcma
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block
block: sunvdc: don't run hw queue synchronously from irq context
2019-01-03 08:21:47 -07:00
bluetooth
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bus
ARM: SoC driver updates
2018-12-31 17:32:35 -08:00
cdrom
gdrom: fix a memory leak bug
2018-12-29 08:20:44 -07:00
char
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
clk
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2019-01-02 18:56:59 -08:00
clocksource
arch/csky patches for 4.21-rc1
2019-01-05 09:50:07 -08:00
connector
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cpufreq
powerpc updates for 4.21
2018-12-27 10:43:24 -08:00
cpuidle
powerpc updates for 4.21
2018-12-27 10:43:24 -08:00
crypto
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
dax
mm, devm_memremap_pages: fix shutdown handling
2018-12-28 12:11:47 -08:00
dca
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devfreq
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dio
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dma
Merge branch 'next/drivers' into next/late
2019-01-04 14:31:38 -08:00
dma-buf
drivers/dma-buf/udmabuf.c: convert to use vm_fault_t
2019-01-04 13:13:46 -08:00
edac
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eisa
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extcon
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firewire
FireWire (IEEE 1394) subsystem patch:
2019-01-05 18:33:21 -08:00
firmware
arm64 fixes for -rc1
2019-01-05 11:28:39 -08:00
fmc
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fpga
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
fsi
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gnss
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gpio
This is the bulk of GPIO changes for the v4.21 kernel series:
2018-12-28 20:00:21 -08:00
gpu
drm i915 gvt, amdgpu, core fixes
2019-01-05 18:25:19 -08:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2019-01-05 17:53:40 -08:00
hsi
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hv
Char/Misc driver patches for 4.21-rc1
2018-12-28 20:54:57 -08:00
hwmon
Kconfig updates for v4.21
2018-12-29 13:03:29 -08:00
hwspinlock
hwspinlock: fix return value check in stm32_hwspinlock_probe()
2019-01-03 11:42:10 -08:00
hwtracing
stm class: Prevent division by zero
2019-02-21 17:44:18 +02:00
i2c
Merge branch 'i2c/for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2019-01-05 18:13:35 -08:00
i3c
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ide
for-4.21/block-20181221
2018-12-28 13:19:59 -08:00
idle
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iio
Staging/IIO driver patches for 4.21-rc1
2018-12-28 20:39:58 -08:00
infiniband
4.21 merge window 2nd pull request
2019-01-05 18:20:51 -08:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2019-01-02 18:56:59 -08:00
iommu
IOMMU Updates for Linux v4.21
2019-01-01 15:55:29 -08:00
ipack
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irqchip
Xtensa updates for v4.21:
2018-12-29 09:40:40 -08:00
isdn
isdn: fix kernel-infoleak in capi_unlocked_ioctl
2019-01-02 10:31:39 -08:00
leds
LEDs for 4.21-rc1
2018-12-25 14:52:50 -08:00
lightnvm
lightnvm: pblk: fix use-after-free bug
2018-12-22 14:45:35 -07:00
macintosh
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
mailbox
mailbox: tegra-hsp: Use device-managed registration API
2018-12-21 22:31:26 -06:00
mcb
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md
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md into for-linus
2019-01-03 08:21:02 -07:00
media
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
memory
ARM: SoC: late updates
2019-01-05 11:30:37 -08:00
memstick
MMC core:
2018-12-28 16:52:18 -08:00
message
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mfd
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misc
Merge branch 'i2c/for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2019-01-05 18:13:35 -08:00
mmc
MMC core:
2018-12-28 16:52:18 -08:00
mtd
Kbuild updates for v4.21
2018-12-29 12:03:17 -08:00
mux
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net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-01-03 12:53:47 -08:00
nfc
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ntb
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nubus
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nvdimm
Merge branch 'akpm' (patches from Andrew)
2018-12-28 16:55:46 -08:00
nvme
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nvmem
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of
Merge tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
2018-12-28 20:08:34 -08:00
opp
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oprofile
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parisc
Kconfig file consolidation for v4.21
2018-12-29 13:40:29 -08:00
parport
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pci
pci-v4.21-changes
2019-01-05 17:57:34 -08:00
pcmcia
Included in this update:
2019-01-05 11:23:17 -08:00
perf
drivers/perf: hisi: Fixup one DDRC PMU register offset
2019-01-04 10:13:27 +00:00
phy
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pinctrl
Pin control bulk changes for the v4.21 kernel cycle:
2019-01-01 13:19:16 -08:00
platform
chrome platform changes for v4.21
2019-01-06 11:40:06 -08:00
pnp
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
power
power supply and reset changes for the v4.21 series
2018-12-28 20:22:45 -08:00
powercap
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pps
Kconfig updates for v4.21
2018-12-29 13:03:29 -08:00
ps3
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ptp
Char/Misc driver patches for 4.21-rc1
2018-12-28 20:54:57 -08:00
pwm
pwm: imx: Add ipg clock operation
2018-12-24 12:06:56 +01:00
rapidio
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ras
treewide: surround Kconfig file paths with double quotes
2018-12-22 00:25:54 +09:00
regulator
Merge remote-tracking branch 'regulator/topic/coupled' into regulator-next
2018-12-21 13:43:35 +00:00
remoteproc
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reset
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rpmsg
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rtc
RTC for 4.21
2019-01-01 13:24:31 -08:00
s390
s390 updates for the 4.21 merge window
2019-01-02 18:37:01 -08:00
sbus
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
2018-12-26 10:32:18 -08:00
scsi
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
sfi
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sh
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siox
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slimbus
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sn
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soc
ARM: SoC driver updates
2018-12-31 17:32:35 -08:00
soundwire
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spi
spi: Updates for v4.21
2018-12-25 14:43:54 -08:00
spmi
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ssb
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staging
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
target
SCSI misc on 20181224
2018-12-28 14:48:06 -08:00
tc
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tee
OP-TEE dynamic shm log message
2018-12-31 13:06:30 -08:00
thermal
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2019-01-05 16:07:28 -08:00
thunderbolt
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tty
ARM: SoC: late updates
2019-01-05 11:30:37 -08:00
uio
Char/Misc driver patches for 4.21-rc1
2018-12-28 20:54:57 -08:00
usb
pci-v4.21-changes
2019-01-05 17:57:34 -08:00
uwb
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vfio
IOMMU Updates for Linux v4.21
2019-01-01 15:55:29 -08:00
vhost
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
video
fbdev changes for v4.21:
2019-01-05 18:15:37 -08:00
virt
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virtio
virtio, vhost: features, fixes, cleanups
2019-01-02 18:54:45 -08:00
visorbus
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vlynq
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vme
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w1
treewide: surround Kconfig file paths with double quotes
2018-12-22 00:25:54 +09:00
watchdog
linux-watchdog 4.21-rc1 tag
2019-01-01 13:16:45 -08:00
xen
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
zorro
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Kconfig
Kconfig file consolidation for v4.21
2018-12-29 13:40:29 -08:00
Makefile
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