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8abaae62f3fdead8f4ce0ab46b4ab93dee39bab2
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Yann Droneaud 8abaae62f3 IB/core: disallow registering 0-sized memory region 
If ib_umem_get() is called with a size equal to 0 and an
non-page aligned address, one page will be pinned and a
0-sized umem will be returned to the caller.

This should not be allowed: it's not expected for a memory
region to have a size equal to 0.

This patch adds a check to explicitly refuse to register
a 0-sized region.

Link: http://mid.gmane.org/cover.1428929103.git.ydroneaud@opteya.com
Cc: <stable@vger.kernel.org>
Cc: Shachar Raindel <raindel@mellanox.com>
Cc: Jack Morgenstein <jackm@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-04-15 16:05:02 -04:00
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accessibility
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acpi
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
amba
ARM: 8334/1: amba: tegra-ahb: detect and correct bogus base address
2015-04-02 10:03:55 +01:00
android
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ata
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
atm
drivers: atm: nicstar: remove ifdef'd out skb destructors
2015-03-10 13:34:53 -04:00
auxdisplay
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base
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
bcma
bcma: gpio: use predictable base for all BCM47XX buses
2015-03-20 09:08:56 +02:00
block
Merge branch 'linus' into irq/core to get the GIC updates which
2015-04-08 23:26:21 +02:00
bluetooth
Bluetooth: btusb: Use proper data structures for Intel vendor events
2015-04-09 10:42:18 +03:00
bus
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cdrom
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char
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2015-04-15 11:08:27 -07:00
clk
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2015-03-15 15:07:08 -07:00
clocksource
ARM, clocksource/drivers: Provide read_boot_clock64() and read_persistent_clock64() and use them
2015-04-03 08:18:23 +02:00
connector
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coresight
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cpufreq
intel_pstate: Knights Landing support
2015-04-11 02:13:29 +02:00
cpuidle
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
crypto
crypto: sahara - fix AES descriptor create
2015-04-08 22:20:06 +08:00
dca
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devfreq
PM / devfreq: tegra: Register governor on module init
2015-03-31 13:17:15 +09:00
dio
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dma
Merge tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2015-04-13 17:37:33 -07:00
dma-buf
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edac
EDAC: Constify of_device_id array
2015-03-20 17:50:07 +01:00
eisa
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extcon
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firewire
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firmware
Merge branch 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 10:22:30 -07:00
fmc
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gpio
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
gpu
Merge tag 'trace-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2015-04-14 10:49:03 -07:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2015-04-14 18:25:15 -07:00
hsi
HSI: cmt_speech: fix error return code
2015-04-05 14:45:27 +02:00
hv
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hwmon
hwmon: (pwm-fan) Update the duty cycle inorder to control the pwm-fan
2015-04-12 15:59:11 -07:00
hwspinlock
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i2c
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
ide
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
idle
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
iio
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2015-04-14 09:50:27 -07:00
infiniband
IB/core: disallow registering 0-sized memory region
2015-04-15 16:05:02 -04:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2015-04-14 18:25:15 -07:00
iommu
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
ipack
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irqchip
Merge tag 'irqchip-core-4.1-3' of git://git.infradead.org/users/jcooper/linux into irq/core
2015-04-11 11:17:28 +02:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
leds
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lguest
lguest: now needs PCI_DIRECT.
2015-04-01 10:29:05 -07:00
macintosh
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mailbox
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mcb
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md
md/raid0: fix bug with chunksize not a power of 2.
2015-04-10 15:36:31 +10:00
media
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
memory
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memstick
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message
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mfd
Merge tag 'mfd-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2015-04-14 17:29:55 -07:00
misc
Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-14 15:31:03 -07:00
mmc
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2015-04-14 09:50:27 -07:00
mtd
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2015-04-14 09:50:27 -07:00
net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
nfc
NFC: logging neatening
2015-04-07 12:05:12 +02:00
ntb
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nubus
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of
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
oprofile
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parisc
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2015-04-14 09:50:27 -07:00
parport
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pci
Merge tag 'pci-v4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2015-04-13 15:45:47 -07:00
pcmcia
Revert "pcmcia: add a new resource manager for non ISA systems"
2015-03-11 14:21:23 +01:00
phy
Merge tag 'usb-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2015-04-13 17:07:21 -07:00
pinctrl
Merge tag 'pinctrl-v4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2015-04-14 17:58:15 -07:00
platform
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
pnp
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
power
power: twl4030_madc_battery: Add missing MODULE_ALIAS
2015-04-06 19:39:57 +02:00
powercap
powercap / RAPL: mark rapl_ids array as __initconst
2015-04-11 02:21:15 +02:00
pps
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ps3
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ptp
ptp: remove 32 bit get/set methods.
2015-03-31 12:01:19 -04:00
pwm
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rapidio
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ras
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regulator
Merge tag 'mfd-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2015-04-14 17:29:55 -07:00
remoteproc
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reset
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rpmsg
virtio_rpmsg: set DRIVER_OK before using device
2015-03-13 15:55:42 +10:30
rtc
Merge tag 'mfd-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2015-04-14 17:29:55 -07:00
s390
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
sbus
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scsi
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
sfi
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sh
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sn
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soc
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spi
Merge remote-tracking branches 'spi/topic/spidev' and 'spi/topic/spidev-test' into spi-next
2015-04-11 23:09:31 +01:00
spmi
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ssb
ssb: add delay after PCI reset to fix SoC reboots
2015-04-07 20:18:10 +03:00
staging
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
target
iscsi target: fix oops when adding reject pdu
2015-04-10 12:33:55 -07:00
tc
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thermal
drivers: thermal: st: remove several sparse warnings
2015-04-07 13:43:28 -07:00
thunderbolt
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tty
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
uio
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usb
Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-14 15:31:03 -07:00
uwb
uwb: Remove umc bus legacy suspend/resume support
2015-03-18 17:27:03 +01:00
vfio
vfio-pci: Fix use after free
2015-04-08 08:11:51 -06:00
vhost
new helper: msg_data_left()
2015-04-11 15:53:35 -04:00
video
Merge tag 'backlight-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
2015-04-14 17:54:22 -07:00
virt
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virtio
virtio_mmio: fix access width for mmio
2015-03-17 12:12:21 +10:30
vlynq
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vme
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w1
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watchdog
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2015-04-14 20:51:44 -07:00
xen
cleancache: forbid overriding cleancache_ops
2015-04-14 16:49:03 -07:00
zorro
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Kconfig
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Makefile
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