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Filename Latest commit message Latest commit date
Sean Young a607f51e5a media: Revert "[media] lirc_dev: remove superfluous get/put_device() calls" 
This reverts commit 5be2b76a9c.

Only when the lirc device is freed, should we drop our reference to
rc_dev, else we the rc_dev is freed to early. If userspace has
a file descriptor open during unplug, it goes bang.

==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x7bb/0x1e10
Read of size 8 at addr ffff8801d7d61ed0 by task ir-rec/2609

-snip-
 mutex_lock_nested+0x1b/0x20
 ? mutex_lock_nested+0x1b/0x20
 rc_close.part.6+0x20/0x60 [rc_core]
 rc_close+0x13/0x20 [rc_core]
 lirc_dev_fop_close+0x62/0xd0 [lirc_dev]
 __fput+0x236/0x410
 ? fput+0xb0/0xb0
 ? do_raw_spin_trylock+0x110/0x110
 ? set_rq_offline.part.70+0xa0/0xa0
 ____fput+0xe/0x10
 task_work_run+0x116/0x180
 ? task_work_cancel+0x170/0x170
 ? _raw_spin_unlock+0x27/0x40
 ? switch_task_namespaces+0x5f/0x90
 do_exit+0x68b/0xe80

Cc: stable@vger.kernel.org # For Kernel 4.13
Fixes: 5be2b76a9c ("[media] lirc_dev: remove superfluous get/put_device() calls")
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 07:28:59 -04:00
arch media: arm: dts: omap3: N9/N950: Add AS3645A camera flash 2017-08-26 20:30:31 -04:00
block
certs
crypto
Documentation media: add qcom_camss.rst to v4l-drivers rst file 2017-09-05 07:28:25 -04:00
drivers media: Revert "[media] lirc_dev: remove superfluous get/put_device() calls" 2017-09-05 07:28:59 -04:00
firmware
fs A large number of ext4 bug fixes and cleanups for v4.13 2017-08-06 12:31:17 -07:00
include media: dvb headers: make checkpatch happier 2017-09-05 07:10:24 -04:00
init
ipc
kernel Fix compat_sys_sigpending breakage 2017-08-06 11:48:27 -07:00
lib
mm
net
samples media: v4l2-pci-skeleton: constify vb2_ops structures 2017-08-20 08:03:09 -04:00
scripts
security
sound
tools
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS media: leds: as3645a: Add LED flash class driver 2017-08-26 20:30:12 -04:00
Makefile Linux 4.13-rc4 2017-08-06 18:44:49 -07:00
README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.