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671bdea2b9f210566610603ecbb6584c8a201c8c
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Amit Shah 671bdea2b9 virtio: console: fix race in port_fops_open() and port unplug 
Between open() being called and processed, the port can be unplugged.
Check if this happened, and bail out.

A simple test script to reproduce this is:

while true; do for i in $(seq 1 100); do echo $i > /dev/vport0p3; done; done;

This opens and closes the port a lot of times; unplugging the port while
this is happening triggers the bug.

CC: <stable@vger.kernel.org>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2013-07-29 14:43:55 +09:30
..
accessibility
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acpi
Merge tag 'acpi-video-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2013-07-21 10:11:04 -07:00
amba
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ata
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
atm
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auxdisplay
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base
Merge tag 'driver-core-3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2013-07-18 12:48:40 -07:00
bcma
bcma: add support for BCM43142
2013-06-27 13:42:16 -04:00
block
Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
2013-07-10 10:16:07 -07:00
bluetooth
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bus
Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2013-07-02 14:23:01 -07:00
cdrom
drivers/cdrom/cdrom.c: use kzalloc() for failing hardware
2013-07-03 16:07:25 -07:00
char
virtio: console: fix race in port_fops_open() and port unplug
2013-07-29 14:43:55 +09:30
clk
Merge tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2013-07-03 14:35:40 -07:00
clocksource
clocksource+irqchip: delete __cpuinit usage from all related files
2013-07-14 19:36:57 -04:00
connector
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cpufreq
Merge tag 'pm+acpi-3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2013-07-19 09:59:06 -07:00
cpuidle
Merge tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2013-07-03 14:35:40 -07:00
crypto
crypto: talitos: use sg_pcopy_to_buffer()
2013-07-09 10:33:30 -07:00
dca
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devfreq
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
dio
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dma
drivers/dma/iop-adma.c: fix new warnings
2013-07-09 10:33:19 -07:00
edac
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
eisa
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extcon
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
firewire
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firmware
efivars: check for EFI_RUNTIME_SERVICES
2013-07-11 11:00:31 +01:00
fmc
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gpio
Merge tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2013-07-03 14:35:40 -07:00
gpu
Merge tag 'acpi-video-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2013-07-21 10:11:04 -07:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2013-07-04 15:35:08 -07:00
hsi
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
hv
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hwmon
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
2013-07-18 11:32:36 -07:00
hwspinlock
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i2c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
ide
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
2013-07-10 18:15:41 -07:00
idle
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iio
Merge tag 'iio-fixes-for-3.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
2013-07-16 22:41:38 -07:00
infiniband
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
2013-07-13 12:57:21 -07:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2013-07-13 18:05:13 -07:00
iommu
Merge tag 'iommu-updates-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
2013-07-10 14:46:40 -07:00
ipack
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irqchip
clocksource+irqchip: delete __cpuinit usage from all related files
2013-07-14 19:36:57 -04:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-07-09 18:24:39 -07:00
leds
leds: mc13783: Fix "uninitialized variable" warning
2013-07-02 08:44:02 -07:00
lguest
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-07-04 11:40:58 -07:00
macintosh
macintosh/windfarm: Remove obsolete cleanup for clientdata
2013-07-01 11:46:56 +10:00
mailbox
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md
md/raid1: fix bio handling problems in process_checks()
2013-07-18 14:18:04 +10:00
media
[media] saa7134: Fix unlocked snd_pcm_stop() call
2013-07-15 21:25:14 +02:00
memory
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memstick
drivers/memstick/host/r592.c: convert to module_pci_driver
2013-07-03 16:08:06 -07:00
message
drivers: avoid format strings in names passed to alloc_workqueue()
2013-07-03 16:07:41 -07:00
mfd
Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next
2013-07-10 11:10:27 -07:00
misc
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-07-04 11:40:58 -07:00
mmc
Merge tag 'mmc-updates-for-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
2013-07-10 11:16:00 -07:00
mtd
Merge tag 'upstream-3.11-rc1' of git://git.infradead.org/linux-ubi
2013-07-05 12:09:48 -07:00
net
macvtap: do not zerocopy if iov needs more pages than MAX_SKB_FRAGS
2013-07-18 13:04:25 -07:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-07-09 18:24:39 -07:00
ntb
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nubus
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of
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-07-09 18:24:39 -07:00
oprofile
drivers: delete __cpuinit usage from all remaining drivers files
2013-07-14 19:36:59 -04:00
parisc
parisc: fix LMMIO mismatch between PAT length and MASK register
2013-07-09 22:09:16 +02:00
parport
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
pci
Merge branch 'akpm' (updates from Andrew Morton)
2013-07-03 17:12:13 -07:00
pcmcia
Merge tag 'driver-core-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2013-07-02 11:44:19 -07:00
pinctrl
Merge tag 'pinctrl-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2013-07-03 11:48:03 -07:00
platform
x86 platform drivers: fix gpio leak
2013-07-10 15:42:51 -04:00
pnp
PNP / ACPI: avoid garbage in resource name
2013-07-18 01:38:59 +02:00
power
Merge tag 'for-v3.11' of git://git.infradead.org/battery-2.6
2013-07-10 11:13:00 -07:00
pps
pps-gpio: add device-tree binding and support
2013-07-03 16:08:06 -07:00
ps3
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ptp
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pwm
pwm: pwm-tiehrpwm: Use clk_enable/disable instead clk_prepare/unprepare.
2013-06-26 23:23:54 +02:00
rapidio
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
regulator
Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next
2013-07-10 11:10:27 -07:00
remoteproc
Merge tag 'remoteproc-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
2013-07-11 12:35:09 -07:00
reset
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rpmsg
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rtc
Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next
2013-07-10 11:10:27 -07:00
s390
s390/zcrypt: Alias for new zcrypt device driver base module
2013-07-19 08:37:39 +02:00
sbus
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scsi
Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2013-07-13 17:41:21 -07:00
sfi
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sh
Merge branch 'pm-assorted'
2013-06-28 13:01:40 +02:00
sn
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spi
Merge remote-tracking branch 'spi/fix/xilinx' into spi-linus
2013-07-15 11:46:16 +01:00
ssb
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
staging
Merge tag 'staging-3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2013-07-20 15:42:38 -07:00
target
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-07-11 12:57:19 -07:00
tc
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thermal
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
2013-07-11 12:26:08 -07:00
tty
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
uio
uio: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT
2013-07-03 16:07:26 -07:00
usb
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
uwb
drivers: avoid format string in dev_set_name
2013-07-03 16:07:41 -07:00
vfio
Merge tag 'vfio-v3.11' of git://github.com/awilliam/linux-vfio
2013-07-10 14:50:08 -07:00
vhost
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-07-11 12:57:19 -07:00
video
uvesafb: Really allow mtrr being 0, as documented and warn()ed
2013-07-16 10:24:28 +10:00
virt
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virtio
Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2013-07-10 14:50:58 -07:00
vlynq
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vme
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w1
drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode
2013-07-03 16:08:06 -07:00
watchdog
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-07-13 14:52:21 -07:00
xen
drivers: delete __cpuinit usage from all remaining drivers files
2013-07-14 19:36:59 -04:00
zorro
zorro: switch to fixed_size_llseek()
2013-06-29 12:57:28 +04:00
Kconfig
Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next
2013-07-10 11:10:27 -07:00
Makefile
Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next
2013-07-10 11:10:27 -07:00