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Takashi Iwai 43bb0a16b2 ALSA: seq: Fix racy access for queue timer in proc read 
commit 60adcfde92 upstream.

snd_seq_info_timer_read() reads the information of the timer assigned
for each queue, but it's done in a racy way which may lead to UAF as
spotted by syzkaller.

This patch applies the missing q->timer_mutex lock while accessing the
timer object as well as a slight code change to adapt the standard
coding style.

Reported-by: syzbot+2b2ef983f973e5c40943@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200115203733.26530-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2020-01-23 08:20:30 +01:00
Documentation mei: fix modalias documentation 2020-01-17 19:45:48 +01:00
arch hexagon: work around compiler crash 2020-01-17 19:45:55 +01:00
block block: fix memleak when __blk_rq_map_user_iov() is failed 2020-01-12 12:12:00 +01:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto crypto: user - fix memory leak in crypto_report 2019-12-17 20:38:55 +01:00
drivers clk: Don't try to enable critical clocks if prepare failed 2020-01-23 08:20:30 +01:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs ocfs2: call journal flush to mark journal as empty after journal recovery when mount 2020-01-17 19:45:55 +01:00
include dt-bindings: reset: meson8b: fix duplicate reset IDs 2020-01-23 08:20:29 +01:00
init fork: fix some -Wmissing-prototypes warnings 2019-12-05 15:37:52 +01:00
ipc ipc/mqueue.c: only perform resource calculation if user valid 2019-08-06 19:05:24 +02:00
kernel tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined 2020-01-14 20:05:40 +01:00
lib dma-debug: add a schedule point in debug_dma_dump_mappings() 2020-01-04 13:59:39 +01:00
mm arm64: Revert support for execute-only user mappings 2020-01-09 10:17:56 +01:00
net compat_ioctl: handle SIOCOUTQNSD 2020-01-17 19:45:49 +01:00
samples samples: bpf: fix syscall_tp due to unused syscall 2020-01-12 12:11:56 +01:00
scripts kconfig: don't crash on NULL expressions in expr_eq() 2020-01-12 12:11:58 +01:00
security apparmor: fix unsigned len comparison with less than zero 2020-01-04 13:59:51 +01:00
sound ALSA: seq: Fix racy access for queue timer in proc read 2020-01-23 08:20:30 +01:00
tools rseq/selftests: Turn off timeout setting 2020-01-17 19:45:53 +01:00
usr kbuild: clean compressed initramfs image 2019-10-07 18:55:14 +02:00
virt KVM: arm/arm64: vgic: Don't rely on the wrong pending table 2019-12-17 20:38:51 +01:00
.cocciconfig
…
.get_maintainer.ignore
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.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
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CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS USB: rio500: Remove Rio 500 kernel driver 2019-10-17 13:43:20 -07:00
Makefile Linux 4.14.166 2020-01-17 19:45:55 +01:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

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.