Daniel Borkmann c3ac8a1343 packet: fix send path when running with proto == 0 ...

[ Upstream commit 66e56cd46b ]

Commit e40526cb20 introduced a cached dev pointer, that gets
hooked into register_prot_hook(), __unregister_prot_hook() to
update the device used for the send path.

We need to fix this up, as otherwise this will not work with
sockets created with protocol = 0, plus with sll_protocol = 0
passed via sockaddr_ll when doing the bind.

So instead, assign the pointer directly. The compiler can inline
these helper functions automagically.

While at it, also assume the cached dev fast-path as likely(),
and document this variant of socket creation as it seems it is
not widely used (seems not even the author of TX_RING was aware
of that in his reference example [1]). Tested with reproducer
from e40526cb20.

 [1] http://wiki.ipxwarzone.com/index.php5?title=Linux_packet_mmap#Example

Fixes: e40526cb20 ("packet: fix use after free race in send path when dev is released")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Salam Noureddine <noureddine@aristanetworks.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-01-15 15:28:46 -08:00

..

ABI

Merge tag 'for-linus-20130509' of git://git.infradead.org/linux-mtd

2013-05-09 10:15:46 -07:00

accounting

doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c

2012-11-26 14:22:21 +01:00

acpi

Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

2013-05-09 09:46:45 -07:00

aoe

aoe: allow user to disable target failure timeout

2012-12-17 17:15:25 -08:00

arm

Merge tag 'firmware-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2013-05-04 12:33:36 -07:00

arm64

arm64: Add simple earlyprintk support

2013-01-22 17:51:01 +00:00

auxdisplay

…

backlight

backlight: lp855x: remove duplicate platform data

2013-04-29 18:28:19 -07:00

blackfin

Documentation: Fix typo in multiple files in Documentation

2012-04-16 14:37:13 +02:00

block

Documentation: cfq-iosched: update documentation help for cfq tunables

2013-04-09 14:57:06 +02:00

blockdev

nbd: update documentation and link to mailinglist

2013-02-27 19:10:22 -08:00

bus-devices

ARM: OMAP2+: gpmc: generic timing calculation

2012-11-09 18:07:11 +05:30

cdrom

doc: fix broken references

2011-09-27 18:08:04 +02:00

cgroups

mm, memcg: add rss_huge stat to memory.stat

2013-05-07 18:38:26 -07:00

connector

connector: Move cn_test.c away from NLMSG_PUT().

2012-06-26 21:19:02 -07:00

console

doc: fix console doc typo

2010-02-24 13:51:32 +01:00

cpu-freq

Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-05-05 13:23:27 -07:00

cpuidle

cpuidle: make a single register function for all

2013-04-23 13:45:22 +02:00

cris

CRIS: Update documentation

2012-04-03 13:09:18 +02:00

crypto

KEYS: Document asymmetric key type

2012-10-08 13:50:12 +10:30

development-process

Documentation: Update stable address

2011-12-12 14:14:31 -08:00

device-mapper

DM RAID: Add message/status support for changing sync action

2013-04-24 11:42:43 +10:00

devicetree

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2013-06-18 06:25:08 -10:00

DocBook

media: DocBook: upgrade media_api DocBook version to 4.2

2013-09-26 17:18:20 -07:00

driver-model

lib: devres: Introduce devm_ioremap_resource()

2013-01-22 09:41:43 -08:00

dvb

[media] get_dvb_firmware: Fix the location of firmware for Terratec HTC

2013-01-01 11:18:26 -02:00

early-userspace

…

EDID

drm: Add 1600x1200 (UXGA) screen resolution to the built-in EDIDs

2013-04-12 14:06:16 +10:00

extcon

Documentation/extcon: porting guide for Android kernel switch driver.

2012-04-20 09:24:27 -07:00

fault-injection

doc: fix quite a few typos within Documentation

2012-11-19 14:28:24 +01:00

fb

Documentation: remove references to /etc/modprobe.conf

2012-03-30 16:03:15 -07:00

filesystems

xfs: disable noattr2/attr2 mount options for CRC enabled filesystems

2013-06-06 10:51:34 -05:00

firmware_class

firmware loader: document firmware cache mechanism

2012-11-14 15:07:18 -08:00

frv

doc: fix broken references

2011-09-27 18:08:04 +02:00

hid

HID: remove x bit from sensor doc

2012-12-14 08:48:59 +01:00

hwmon

hwmon: (k10temp) Add support for Fam16h (Kabini)

2013-09-07 22:09:59 -07:00

i2c

i2c-piix4: Add AMD CZ SMBus device ID

2013-07-25 14:07:28 -07:00

i2o

Documentation: Fix multiple typo in Documentation

2012-03-07 16:08:24 +01:00

ia64

Fix example error_injection_tool

2013-04-02 09:39:55 -07:00

ide

Documentation: remove references to /etc/modprobe.conf

2012-03-30 16:03:15 -07:00

infiniband

IB/ipoib: Add rtnl_link_ops support

2012-09-20 16:49:17 -04:00

input

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2013-03-11 07:49:37 -07:00

ioctl

USB: cdc-wdm: implement IOCTL_WDM_MAX_COMMAND

2013-03-25 13:32:20 -07:00

isdn

Documentation: remove references to /etc/modprobe.conf

2012-03-30 16:03:15 -07:00

ja_JP

Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

2011-07-25 23:06:24 -07:00

kbuild

Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2013-05-07 07:59:19 -07:00

kdump

Add size restriction to the kdump documentation

2013-04-02 09:40:03 -07:00

ko_KR

driver-core: documentation: fix up Greg's email address

2012-02-15 14:48:01 -08:00

laptops

Documentation/laptops: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:52:42 -08:00

leds

leds: lp55xx: configure the clock detection

2013-04-01 11:04:53 -07:00

m68k

block: remove refs to XD disks from documentation

2013-05-17 15:17:12 +02:00

make

kbuild: introduce HDR_ARCH_LIST for headers_install_all

2010-12-14 22:16:19 +01:00

memory-devices

memory: emif: add basic infrastructure for EMIF driver

2012-05-02 00:10:49 -07:00

metag

metag: Basic documentation

2013-03-02 20:09:50 +00:00

mips

Fix common misspellings

2011-03-31 11:26:23 -03:00

misc-devices

mei: bus: Add device enabling and disabling API

2013-04-08 16:57:15 -07:00

mmc

mmc: core: Add in support to expose PRV for v4 MMCs

2013-03-22 12:10:42 -04:00

mn10300

…

mtd

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

namespaces

userns: Recommend use of memory control groups.

2013-01-26 22:20:06 -08:00

netlabel

Documentation/: it's -> its where appropriate

2010-04-23 02:09:52 +02:00

networking

packet: fix send path when running with proto == 0

2014-01-15 15:28:46 -08:00

nfc

NFC: Update pn544 documentation

2013-01-10 01:27:46 +01:00

parisc

parisc: document the shadow registers

2013-07-21 18:21:26 -07:00

PCI

PCI/MSI: Enable multiple MSIs with pci_enable_msi_block_auto()

2013-01-24 17:25:13 +01:00

pcmcia

pcmcia: use autoconfiguration feature for ioports and iomem

2010-09-29 17:20:24 +02:00

power

PM / hibernate: Correct documentation

2013-05-14 01:58:43 +02:00

powerpc

powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions

2013-06-01 08:29:23 +10:00

pps

pps: add parallel port PPS signal generator

2011-01-13 08:03:21 -08:00

prctl

seccomp: Make syscall skipping and nr changes more consistent

2012-10-02 21:14:29 +10:00

pti

Kernel documentation for the PTI feature.

2011-05-13 16:31:00 -07:00

ptp

ptp: Added a brand new class driver for ptp clocks.

2011-05-23 13:01:00 -07:00

rapidio

rapidio: documentation update for enumeration changes

2013-05-24 16:22:50 -07:00

RCU

Merge commit '8700c95adb03' into timers/nohz

2013-05-02 17:54:19 +02:00

s390

s390/cio: add condev keyword to cio_ignore

2013-05-02 15:50:20 +02:00

scheduler

sched: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW

2012-09-13 16:52:04 +02:00

scsi

[SCSI] qla2xxx: Update copyright dates information in LICENSE.qla2xxx file.

2013-04-06 11:31:30 +01:00

security

Smack: add support for modification of existing rules

2013-03-19 14:16:42 -07:00

serial

tty: Update serial core API documentation

2013-01-15 21:57:44 -08:00

sh

sh: clkfwk: Kill off unused clk_set_rate_ex().

2010-11-15 18:25:12 +09:00

sound

ALSA: hda - Add models for Dell headset jacks

2013-06-17 11:15:56 +02:00

spi

Documentation: remove __dev* attributes.

2013-01-03 15:57:16 -08:00

sysctl

vsprintf: check real user/group id for %pK

2013-12-04 10:56:06 -08:00

target

target: Simplify fabric sense data length handling

2012-09-17 17:12:58 -07:00

thermal

Thermal: update documentation for thermal_zone_device_register

2013-04-27 09:16:04 +08:00

timers

nohz_full: Add documentation.

2013-04-27 16:41:43 -07:00

trace

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-04-30 09:36:50 -07:00

usb

USB: remove CONFIG_USB_SUSPEND from Documentation

2013-03-28 14:45:56 -07:00

vDSO

Document the vDSO and add a reference parser

2011-07-14 17:57:09 -07:00

video4linux

[media] v4l2: Add a V4L2 driver for SI476X MFD

2013-04-18 21:20:34 -03:00

virtual

Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2013-05-05 14:47:31 -07:00

vm

mm: limit growth of 3% hardcoded other user reserve

2013-04-29 15:54:36 -07:00

w1

w1: w1_therm: Add force-pullup option for "broken" sensors

2013-02-18 13:55:24 -08:00

watchdog

watchdog: core: dt: add support for the timeout-sec dt property

2013-03-01 12:48:36 +01:00

wimax

…

x86

Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-04-30 08:35:20 -07:00

xtensa

xtensa: document MMUv3 setup sequence

2013-05-09 01:07:09 -07:00

zh_CN

gpio: update gpio Chinese documentation

2013-04-16 18:47:22 +09:00

.gitignore

add random binaries to .gitignore

2010-04-08 11:34:34 +02:00

00-INDEX

Merge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

2013-03-03 12:06:09 -08:00

applying-patches.txt

…

atomic_ops.txt

Documentation: Memory barrier semantics of atomic_xchg()

2013-01-08 14:14:55 -08:00

bad_memory.txt

…

basic_profiling.txt

…

bcache.txt

bcache: clarify free/available/unused space

2013-05-15 00:42:52 -07:00

binfmt_misc.txt

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

braille-console.txt

…

bt8xxgpio.txt

…

btmrvl.txt

…

BUG-HUNTING

…

bus-virt-phys-mapping.txt

doc: fix broken references

2011-09-27 18:08:04 +02:00

cachetlb.txt

mm: convert mm->cpu_vm_cpumask into cpumask_var_t

2011-05-25 08:39:21 -07:00

Changes

Documentation/Changes: remove some really obsolete text

2011-07-11 16:48:38 -07:00

circular-buffers.txt

Document Linux's circular buffering capabilities

2010-03-24 16:31:22 -07:00

clk.txt

clk: add clk_ignore_unused option to keep boot clocks on

2013-04-27 23:03:43 -07:00

coccinelle.txt

Coccinelle: Add support to the SPFLAGS variable

2013-04-08 15:42:03 +02:00

CodingStyle

Documentation: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:38:03 -08:00

cpu-hotplug.txt

doc: Add x86 CPU0 online/offline feature

2012-11-14 09:39:44 -08:00

cpu-load.txt

…

cputopology.txt

topology/sysfs: Provide book id and siblings attributes

2010-09-09 20:41:25 +02:00

crc32.txt

crc32: move long comment about crc32 fundamentals to Documentation/

2012-03-23 16:58:37 -07:00

dcdbas.txt

…

debugging-modules.txt

…

debugging-via-ohci1394.txt

…

dell_rbu.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

devices.txt

block: remove refs to XD disks from documentation

2013-05-17 15:17:12 +02:00

digsig.txt

crypto: digital signature verification support

2011-11-09 12:10:37 +02:00

DMA-API-HOWTO.txt

Documentation/DMA-API-HOWTO.txt: fix typo

2013-02-27 19:10:23 -08:00

DMA-API.txt

dma-debug: New interfaces to debug dma mapping errors

2012-10-24 17:06:43 +02:00

DMA-attributes.txt

common: DMA-mapping: add DMA_ATTR_FORCE_CONTIGUOUS attribute

2012-11-29 03:30:34 -08:00

dma-buf-sharing.txt

dma-buf: replace dma_buf_export() with dma_buf_export_named()

2013-05-01 16:35:36 +05:30

DMA-ISA-LPC.txt

…

dmaengine.txt

Documentation: Fix multiple typo in Documentation

2012-03-07 16:08:24 +01:00

dmatest.txt

dmatest: do not allow to interrupt ongoing tests

2013-06-08 02:13:44 +05:30

dontdiff

x86: remove offsets.h from .gitignore and dontdiff

2012-11-19 14:10:53 +01:00

dynamic-debug-howto.txt

dynamic_debug: dynamic hex dump

2013-01-17 12:19:09 -08:00

edac.txt

Merge branch 'devel'

2012-07-29 21:11:05 -03:00

eisa.txt

MCA: delete all remaining traces of microchannel bus support.

2012-05-17 19:06:13 -04:00

email-clients.txt

Documentation: email-clients: Add better Thunderbird information

2011-08-13 18:34:03 -07:00

flexible-arrays.txt

flex_array: flex_array_prealloc takes a number of elements, not an end

2011-04-28 16:12:47 -04:00

futex-requeue-pi.txt

…

gcov.txt

…

gpio.txt

Remove GENERIC_GPIO config option

2013-04-16 18:47:19 +09:00

highuid.txt

…

HOWTO

HOWTO: fix double words typo

2012-12-10 15:54:27 +01:00

hw_random.txt

hwrng: Fix a wrong comment in Documentation/hw_random.txt

2013-03-10 18:16:36 +08:00

hwspinlock.txt

hwspinlock/core: register a bank of hwspinlocks in a single API call

2011-09-21 19:45:34 +03:00

init.txt

init/main.c: improve usability in case of init binary failure

2010-03-06 11:26:29 -08:00

initrd.txt

Documentation/initrd.txt: Change the location of util-linux

2012-05-25 16:18:34 +02:00

intel_txt.txt

Documentation: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:38:03 -08:00

Intel-IOMMU.txt

…

io_ordering.txt

…

io-mapping.txt

…

iostats.txt

iostats.txt: add easy-to-find description for field 6

2013-04-29 15:18:50 +02:00

IPMI.txt

ipmi: add options to disable openfirmware and PCI scanning

2013-02-27 19:10:21 -08:00

IRQ-affinity.txt

bitmap, irq: add smp_affinity_list interface to /proc/irq

2011-05-25 08:39:45 -07:00

IRQ-domain.txt

irqdomain: update documentation

2012-12-05 23:52:10 +00:00

IRQ.txt

…

irqflags-tracing.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

isapnp.txt

…

java.txt

…

kernel-doc-nano-HOWTO.txt

Kernel-doc: Convention: Use a "Return" section to describe return values

2012-11-27 21:08:57 +01:00

kernel-docs.txt

doc: fix broken references

2011-09-27 18:08:04 +02:00

kernel-parameters.txt

libata: disable a disk via libata.force params

2014-01-09 12:24:23 -08:00

kernel-per-CPU-kthreads.txt

kthread: Document ways of reducing OS jitter due to per-CPU kthreads

2013-04-27 16:52:47 -07:00

kmemcheck.txt

…

kmemleak.txt

kmemleak: Handle percpu memory allocation

2011-12-02 16:12:42 +00:00

kobject.txt

Documentation: Fix "struct kobj_type" to include newer members.

2012-09-04 16:06:34 -07:00

kprobes.txt

tree-wide: fix comment/printk typos

2010-11-01 15:38:34 -04:00

kref.txt

kref: Add kref_get_unless_zero documentation

2012-11-28 18:36:06 +10:00

ldm.txt

Documentation: update broken web addresses.

2010-08-04 15:21:40 +02:00

local_ops.txt

…

lockdep-design.txt

lockdep: Update documentation for lock-class leak detection

2011-12-11 10:31:23 -08:00

lockstat.txt

locking/stat: Fix a typo

2013-02-19 08:42:37 +01:00

lockup-watchdogs.txt

watchdog: Update documentation

2012-02-11 15:11:28 +01:00

logo.gif

…

logo.txt

…

magic-number.txt

wanrouter: completely decouple obsolete code from kernel.

2013-01-31 19:20:33 -05:00

Makefile

mei: move doc files Documentation/misc-devices/mei

2012-05-09 13:59:09 -07:00

ManagementStyle

Documentation: ManagementStyle: fixed typo

2012-06-28 12:03:15 +02:00

md.txt

MD: Fix typos in MD documentation

2013-04-24 11:42:42 +10:00

media-framework.txt

[media] Documentation/media-framework.txt: fix a sentence

2013-02-08 13:27:13 -02:00

memory-barriers.txt

Documentation: Memory barrier semantics of atomic_xchg()

2013-01-08 14:14:55 -08:00

memory-hotplug.txt

hotplug: update nodemasks management

2012-12-12 17:38:33 -08:00

mono.txt

Documentation: remove references to /etc/modprobe.conf

2012-03-30 16:03:15 -07:00

mutex-design.txt

mutex: Fix annotations to include it in kernel-locking docbook

2010-09-03 08:19:51 +02:00

nommu-mmap.txt

nommu: fix malloc performance by adding uninitialized flag

2009-12-15 08:53:24 -08:00

numastat.txt

Doc: Update numastat.txt

2012-02-28 16:05:06 +01:00

oops-tracing.txt

module,bug: Add TAINT_OOT_MODULE flag for modules not built in-tree

2011-11-07 07:54:42 +10:30

padata.txt

Documentation/padata.txt: fix typos etc.

2010-08-11 08:59:18 -07:00

parport-lowlevel.txt

…

parport.txt

Documentation: remove references to /etc/modprobe.conf

2012-03-30 16:03:15 -07:00

percpu-rw-semaphore.txt

percpu-rw-semaphore: fix documentation typos

2012-09-26 19:56:15 +02:00

pi-futex.txt

…

pinctrl.txt

pinctrl: document the "GPIO mode" pitfall

2013-03-18 11:03:29 +01:00

pnp.txt

doc: capitalization and other minor fixes in pnp doc

2010-02-05 12:22:44 +01:00

preempt-locking.txt

…

printk-formats.txt

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-04-30 13:47:37 -07:00

pwm.txt

pwm: add devm_pwm_get() and devm_pwm_put()

2012-09-10 17:05:45 +02:00

ramoops.txt

pstore/ftrace: Convert to its own enable/disable debugfs knob

2012-09-06 22:16:58 -07:00

rbtree.txt

rbtree: move augmented rbtree functionality to rbtree_augmented.h

2012-10-09 16:22:40 +09:00

remoteproc.txt

remoteproc: add rproc_report_crash function to notify rproc crashes

2012-09-18 12:53:22 +03:00

rfkill.txt

doc: fix broken references

2011-09-27 18:08:04 +02:00

robust-futex-ABI.txt

…

robust-futexes.txt

…

rpmsg.txt

Documentation: remove __dev* attributes.

2013-01-03 15:57:16 -08:00

rt-mutex-design.txt

variable name fix to Documentation/rt-mutex-design.txt

2010-06-05 17:39:09 +02:00

rt-mutex.txt

…

rtc.txt

rtc-proc: permit the /proc/driver/rtc device to use other devices

2012-10-06 03:05:01 +09:00

SAK.txt

…

SecurityBugs

Fix common misspellings

2011-03-31 11:26:23 -03:00

serial-console.txt

…

sgi-ioc4.txt

…

sgi-visws.txt

…

SM501.txt

…

smsc_ece1099.txt

mfd: smsc: Add support for smsc gpio io/keypad driver

2012-10-01 15:27:48 +02:00

sparse.txt

Documentation/sparse.txt: document context annotations for lock checking

2012-12-17 17:15:23 -08:00

spinlocks.txt

Documentation/spinlocks.txt: Remove reference to sti()/cli()

2011-07-11 12:45:04 -07:00

stable_api_nonsense.txt

doc: stable_api_nonsense.txt: fix paragraph to make more sense.

2011-03-30 12:02:05 +02:00

stable_kernel_rules.txt

stable: Allow merging of backports for serious user-visible performance issues

2012-06-25 12:11:58 -07:00

static-keys.txt

Documentation: Fix typo in multiple files in Documentation

2012-04-16 14:37:13 +02:00

SubmitChecklist

Documentation/SubmitChecklist: add RCU debug config options

2011-07-25 20:57:17 -07:00

SubmittingDrivers

Documentation: SubmittingDrivers: fix Linus's git tree URL

2011-08-13 18:34:03 -07:00

SubmittingPatches

checkpatch: add Suggested-by as a standard signature

2013-04-29 18:28:20 -07:00

svga.txt

…

sysfs-rules.txt

Fix typos in comments

2010-03-16 11:47:56 +01:00

sysrq.txt

Documentation/sysrq: fix inconstistent help message of sysrq key

2013-04-30 17:04:10 -07:00

this_cpu_ops.txt

percpu: add documentation on this_cpu operations

2013-04-04 10:24:53 -07:00

unaligned-memory-access.txt

…

unicode.txt

…

unshare.txt

…

vfio.txt

vfio: Trivial Documentation correction

2012-09-21 10:48:03 -06:00

VGA-softcursor.txt

…

vgaarbiter.txt

misc latin1 to utf8 conversions

2012-01-02 13:04:55 +01:00

video-output.txt

…

vme_api.txt

VME: Move API documentation to Documentation folder

2012-05-08 16:01:34 -07:00

volatile-considered-harmful.txt

Documentation/volatile-considered-harmful.txt: correct cpu_relax() documentation

2010-03-24 16:31:20 -07:00

workqueue.txt

workqueue: reimplement WQ_HIGHPRI using a separate worker_pool

2012-07-13 22:24:45 -07:00

xz.txt

decompressors: add XZ decompressor module

2011-01-13 08:03:24 -08:00

zorro.txt

…