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Stefan Hajnoczi 6e331f4c83 tuntap: refuse to re-attach to different tun_struct 
Multiqueue tun devices support detaching a tun_file from its tun_struct
and re-attaching at a later point in time.  This allows users to disable
a specific queue temporarily.

ioctl(TUNSETIFF) allows the user to specify the network interface to
attach by name.  This means the user can attempt to attach to interface
"B" after detaching from interface "A".

The driver is not designed to support this so check we are re-attaching
to the right tun_struct.  Failure to do so may lead to oops.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-10 14:24:10 -08:00
..
accessibility
acpi Merge branch 'acpi-assorted' 2013-01-04 23:10:29 +01:00
amba Drivers: amba: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
ata Drivers: ata: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
atm Drivers: atm: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
auxdisplay Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
base Merge branch 'pm-sleep' 2013-01-06 00:36:17 +01:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-01-08 07:31:49 -08:00
block Drivers: block: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-12-12 18:07:07 -08:00
bus Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
cdrom Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
char Drivers: char: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
clk Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
clocksource Drivers: clocksource: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
connector Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
cpufreq cpufreq / governor: Fix problem with cpufreq_ondemand or cpufreq_conservative 2013-01-03 13:11:19 +01:00
cpuidle cpuidle: fix lock contention in the idle path 2013-01-03 13:11:06 +01:00
crypto Drivers: crypto: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
dca
devfreq Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
dio
dma Drivers: dma: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
edac Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
eisa
extcon
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
firmware Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
gpio Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
gpu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-01-04 10:29:01 -08:00
hid Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
hsi Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
hv
hwmon Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
hwspinlock
i2c i2c: remove __dev* attributes from subsystem 2012-12-22 20:13:45 +01:00
ide Drivers: ide: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
idle intel_idle: pr_debug information need separated 2013-01-03 13:11:05 +01:00
iio Drivers: iio: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
infiniband Drivers: infinband: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2013-01-04 10:30:11 -08:00
iommu Drivers: iommu: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
ipack
irqchip ARM: arm-soc: Device-tree updates, take 2 2012-12-14 14:42:53 -08:00
isdn Drivers: isdn: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
leds leds: leds-gpio: set devm_gpio_request_one() flags param correctly 2013-01-02 17:58:41 -08:00
lguest lguest: fix typo 2012-12-18 15:19:06 +10:30
macintosh Drivers: macintosh: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
md Miscellaneous device-mapper fixes, cleanups and performance improvements. 2012-12-21 17:08:06 -08:00
media Drivers: media: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
memory Drivers: memory: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
memstick
message Drivers: message: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
mfd Drivers: mfd: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
misc Merge git://www.linux-watchdog.org/linux-watchdog 2012-12-21 17:10:29 -08:00
mmc Drivers: mmc: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
mtd Drivers: mtd: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
net tuntap: refuse to re-attach to different tun_struct 2013-01-10 14:24:10 -08:00
nfc Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
nubus
of of: Fix export of of_find_matching_node_and_match() 2012-12-19 10:58:53 +00:00
oprofile
parisc Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
parport Drivers: parport: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pci PCI: Reduce Ricoh 0xe822 SD card reader base clock frequency to 50MHz 2012-12-26 10:43:06 -07:00
pcmcia ARM: arm-soc: Header cleanups 2012-12-12 11:45:16 -08:00
pinctrl Driver core __dev* removal patches 2013-01-03 16:17:50 -08:00
platform Drivers: platform: x86: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pnp PNP: Handle IORESOURCE_BITS in resource allocation 2013-01-03 13:10:53 +01:00
power Drivers: power: remove __dev* attributes. 2013-01-03 15:57:14 -08:00
pps Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
ps3 Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
ptp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-12-12 18:07:07 -08:00
pwm pwm: Changes for v3.8-rc1 2012-12-19 08:19:07 -08:00
rapidio
regulator Drivers: regulator: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
remoteproc Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
rpmsg Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
rtc drivers/rtc/rtc-vt8500.c: fix handling of data passed in struct rtc_time 2013-01-04 16:11:48 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-12-13 14:20:19 -08:00
sbus Drivers: sbus: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
scsi Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
sfi
sh Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
sn Drivers: misc: remove __dev* attributes. 2013-01-03 15:57:16 -08:00
spi spi/sh-hspi: fix return value check in hspi_probe(). 2012-12-19 15:11:41 +00:00
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-01-08 07:31:49 -08:00
staging Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-12-17 15:44:47 -08:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-12-15 14:25:10 -08:00
tc
thermal Drivers: thermal: remove __dev* attributes. 2013-01-03 15:57:02 -08:00
tty Merge branch 'omap-for-v3.8/fixes-for-merge-window' into omap-for-v3.8/fixes-for-merge-window-v2 2012-12-16 11:28:10 -08:00
uio ARM: arm-soc: SoC updates for 3.8 2012-12-12 12:05:15 -08:00
usb Drivers: usb: host: ehci-orion.c: remove __devinitdata marking 2013-01-03 15:57:02 -08:00
uwb
vfio
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-12-15 14:25:10 -08:00
video Drivers: video: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
virt Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-12-18 09:58:09 -08:00
virtio Drivers: virtio: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
vlynq Drivers: vlynq: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
vme
w1 Drivers: w1: remove last __devexit_p() instance 2013-01-03 15:57:01 -08:00
watchdog watchdog: twl4030_wdt: add DT support 2013-01-02 12:07:05 +01:00
xen Drivers: xen: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
zorro Drivers: zorro: remove CONFIG_HOTPLUG usage 2013-01-03 15:57:01 -08:00
Kconfig
Makefile