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4ccc92f8e5ae05dddd4cce8bee59cc37152b41cc
linux/drivers
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Jason Wang 4ccc92f8e5 tuntap: limit head length of skb allocated 
[ Upstream commit 96f8d9ecf2 ]

We currently use hdr_len as a hint of head length which is advertised by
guest. But when guest advertise a very big value, it can lead to an 64K+
allocating of kmalloc() which has a very high possibility of failure when host
memory is fragmented or under heavy stress. The huge hdr_len also reduce the
effect of zerocopy or even disable if a gso skb is linearized in guest.

To solves those issues, this patch introduces an upper limit (PAGE_SIZE) of the
head, which guarantees an order 0 allocation each time.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-08 07:29:24 -08:00
..
accessibility
…
acpi
ACPI / hotplug: Fix conflicted PCI bridge notify handlers
2013-12-04 10:57:04 -08:00
amba
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ata
ahci: add Marvell 9230 to the AHCI PCI device list
2013-12-04 10:56:13 -08:00
atm
atm: he: use mdelay instead of large udelay constants
2013-04-29 13:26:48 -04:00
auxdisplay
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base
PM / runtime: Use pm_runtime_put_sync() in __device_release_driver()
2013-12-04 10:56:59 -08:00
bcma
bcma: add more core IDs
2013-05-17 14:31:05 -04:00
block
xen/blkback: fix reference counting
2013-12-04 10:56:25 -08:00
bluetooth
Bluetooth: Add support for BCM20702A0 [0b05, 17cb]
2013-10-13 16:08:32 -07:00
bus
bus: mvebu: fix mistake in PCIe window target attribute for Kirkwood
2013-04-11 17:05:37 +00:00
cdrom
drivers/cdrom/cdrom.c: use kzalloc() for failing hardware
2013-07-13 11:42:26 -07:00
char
random: run random_int_secret_init() run after all late_initcalls
2013-10-18 07:45:44 -07:00
clk
clk: armada-370: fix tclk frequencies
2013-12-04 10:57:19 -08:00
clocksource
clocksource: dw_apb: Fix error check
2013-07-25 14:07:29 -07:00
connector
connector: use nlmsg_len() to check message length
2013-11-04 04:31:02 -08:00
cpufreq
cpufreq: highbank-cpufreq: Enable Midway/ECX-2000
2013-12-04 10:57:18 -08:00
cpuidle
cpuidle: coupled: fix race condition between pokes and safe state
2013-09-26 17:18:02 -07:00
crypto
crypto: caam - Fixed the memory out of bound overwrite issue
2013-08-04 16:50:57 +08:00
dca
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devfreq
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dio
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dma
ioatdma: fix selection of 16 vs 8 source path
2013-12-04 10:56:45 -08:00
edac
edac, highbank: Fix interrupt setup of mem and l2 controller
2013-12-04 10:57:15 -08:00
eisa
Merge tag 'pci-v3.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2013-04-29 09:30:25 -07:00
extcon
Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux
2013-05-09 09:59:16 -07:00
firewire
firewire: fix libdc1394/FlyCap2 iso event regression
2013-08-04 16:50:38 +08:00
firmware
dmi: add support for exact DMI matches in addition to substring matching
2013-11-29 11:11:53 -08:00
gpio
gpio: pl061: move irqdomain initialization
2013-12-04 10:57:20 -08:00
gpu
drm/radeon: re-enable sw ACR support on pre-DCE4
2013-12-04 10:57:35 -08:00
hid
HID: apple: option to swap the 'Option' ("Alt") and 'Command' ("Flag") keys.
2013-12-04 10:57:34 -08:00
hsi
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hv
Drivers: hv: balloon: Do not post pressure status if interrupted
2013-08-04 16:50:58 +08:00
hwmon
hwmon: (lm90) Fix max6696 alarm handling
2013-11-29 11:11:50 -08:00
hwspinlock
Merge tag 'hwspinlock-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock
2013-05-07 14:01:27 -07:00
i2c
i2c: mux: gpio: use gpio_set_value_cansleep()
2013-12-04 10:55:50 -08:00
ide
block_device_operations->release() should return void
2013-05-07 02:16:21 -04:00
idle
sched, idle: Fix the idle polling state logic
2013-11-29 11:11:42 -08:00
iio
iio:accel:kxsd9 fix missing mutex unlock
2013-12-04 10:57:16 -08:00
infiniband
IB/srp: Report receive errors correctly
2013-12-04 10:56:17 -08:00
input
Input: usbtouchscreen: ignore eGalax/D-Wav/EETI HIDs
2013-12-04 10:57:18 -08:00
iommu
intel-iommu: Fix leaks in pagetable freeing
2013-09-26 17:18:27 -07:00
ipack
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irqchip
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2013-06-22 09:44:45 -10:00
isdn
isdn/kcapi: fix a small underflow
2013-05-20 13:38:14 -07:00
leds
leds: wm831x-status: Request a REG resource
2013-09-26 17:18:27 -07:00
lguest
lguest: clear cached last cpu when guest_set_pgd() called.
2013-05-08 10:49:18 +09:30
macintosh
powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31)
2013-08-11 18:35:20 -07:00
mailbox
…
md
md: fix calculation of stacking limits on level change.
2013-12-04 10:57:15 -08:00
media
media: cx23885: Fix TeVii S471 regression since introduction of ts2020
2013-12-04 10:57:35 -08:00
memory
drivers/memory: don't check resource with devm_ioremap_resource
2013-05-18 11:55:52 +02:00
memstick
block_device_operations->release() should return void
2013-05-07 02:16:21 -04:00
message
Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block
2013-05-08 10:13:35 -07:00
mfd
mfd: tps6586x: correct device name of the regulator cell
2013-06-24 12:37:47 +01:00
misc
mei: nfc: fix memory leak in error path
2013-11-29 11:11:52 -08:00
mmc
mmc: atmel-mci: fix oops in atmci_tasklet_func
2013-12-04 10:56:40 -08:00
mtd
mtd: gpmi: fix kernel BUG due to racing DMA operations
2013-12-04 10:56:23 -08:00
net
tuntap: limit head length of skb allocated
2013-12-08 07:29:24 -08:00
nfc
NFC: mei: Do not disable MEI devices from their remove routine
2013-05-21 10:48:41 +02:00
ntb
NTB: Correct debugfs to work with more than 1 NTB Device
2013-11-13 12:05:35 +09:00
nubus
nubus: Kill nubus_proc_detach_device()
2013-05-04 14:47:26 -04:00
of
of: Fix missing memory initialization on FDT unflattening
2013-09-26 17:18:29 -07:00
oprofile
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parisc
parisc: Fix interrupt routing for C8000 serial ports
2013-08-11 18:35:21 -07:00
parport
parisc: parport0: fix this legacy no-device port driver!
2013-06-01 14:46:42 +02:00
pci
PCI: Remove duplicate pci_disable_device() from pcie_portdrv_remove()
2013-12-04 10:57:04 -08:00
pcmcia
pcmcia: at91_cf: fix gpio_get_value in at91_cf_get_status
2013-07-21 18:21:25 -07:00
pinctrl
pinctrl: dove: unset twsi option3 for gconfig as well
2013-12-04 10:55:49 -08:00
platform
drivers/platform/olpc/olpc-ec.c: initialise earlier
2013-08-29 09:47:38 -07:00
pnp
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-05-02 10:16:16 -07:00
power
charger-manager: Ensure event is not used as format string
2013-07-13 11:42:26 -07:00
pps
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
ps3
…
ptp
ptp_pch: fix error handling in pch_probe()
2013-05-25 21:24:15 -07:00
pwm
drivers/pwm: don't check resource with devm_ioremap_resource
2013-05-18 11:55:58 +02:00
rapidio
RAPIDIO: IDT_GEN2: Fix build error.
2013-07-28 16:30:07 -07:00
regulator
mfd: tps6586x: correct device name of the regulator cell
2013-06-24 12:37:47 +01:00
remoteproc
Merge tag 'remoteproc-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
2013-05-07 14:04:56 -07:00
reset
reset: NULL deref on allocation failure
2013-04-12 10:26:24 +02:00
rpmsg
Merge tag 'rpmsg-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg
2013-05-07 14:02:00 -07:00
rtc
drivers/rtc/rtc-max77686.c: Fix wrong register
2013-09-14 06:54:57 -07:00
s390
qeth: avoid buffer overflow in snmp ioctl
2013-12-04 10:56:37 -08:00
sbus
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scsi
aacraid: prevent invalid pointer dereference
2013-11-29 11:11:40 -08:00
sfi
…
sh
…
sn
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spi
spi: spi-davinci: Fix direction in dma_map_single()
2013-08-11 18:35:25 -07:00
ssb
Merge tag 'for-linus-20130509' of git://git.infradead.org/linux-mtd
2013-05-09 10:15:46 -07:00
ssbi
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staging
media: lirc_zilog: Don't use dynamic static allocation
2013-12-04 10:57:32 -08:00
target
iscsi-target: chap auth shouldn't match username with trailing garbage
2013-12-04 10:56:15 -08:00
tc
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thermal
drivers/thermal: don't check resource with devm_ioremap_resource
2013-05-18 11:57:30 +02:00
tty
serial: vt8500: add missing braces
2013-11-04 04:31:06 -08:00
uio
Fix a few incorrectly checked [io_]remap_pfn_range() calls
2013-11-13 12:05:33 +09:00
usb
usb: hub: Clear Port Reset Change during init/resume
2013-11-29 11:11:52 -08:00
uwb
uwb: rename random32() to prandom_u32()
2013-04-29 18:28:43 -07:00
vfio
vfio: fix crash on rmmod
2013-06-05 08:54:16 -06:00
vhost
vhost/scsi: Fix incorrect usage of get_user_pages_fast write parameter
2013-11-13 12:05:32 +09:00
video
backlight: atmel-pwm-bl: fix reported brightness
2013-12-04 10:55:47 -08:00
virt
…
virtio
virtio: support unlocked queue poll
2013-07-28 16:29:55 -07:00
vlynq
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vme
…
w1
drivers/w1/masters: don't check resource with devm_ioremap_resource
2013-05-18 11:58:03 +02:00
watchdog
watchdog: ts72xx_wdt: locking bug in ioctl
2013-10-18 07:45:45 -07:00
xen
xen-gnt: prevent adding duplicate gnt callbacks
2013-09-26 17:18:02 -07:00
zorro
proc: Supply PDE attribute setting accessor functions
2013-05-01 17:29:18 -04:00
Kconfig
Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2013-05-04 12:31:18 -07:00
Makefile
Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2013-05-04 12:31:18 -07:00