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Konstantin Khlebnikov 3c06c178cf sched/rt: Check integer overflow at usec to nsec conversion 
[ Upstream commit 1a010e29cf ]

Example of unhandled overflows:

 # echo 18446744073709651 > cpu.rt_runtime_us
 # cat cpu.rt_runtime_us
 99

 # echo 18446744073709900 > cpu.rt_period_us
 # cat cpu.rt_period_us
 348

After this patch they will fail with -EINVAL.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/155125501739.293431.5252197504404771496.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2019-05-31 06:47:26 -07:00
Documentation x86/speculation/mds: Improve CPU buffer clear documentation 2019-05-21 18:50:13 +02:00
arch powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX 2019-05-31 06:47:25 -07:00
block block: do not leak memory in bio_copy_user_iov() 2019-04-17 08:37:53 +02:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto crypto: ccm - fix incompatibility between "ccm" and "ccm_base" 2019-05-21 18:50:20 +02:00
drivers random: add a spinlock_t to struct batched_entropy 2019-05-31 06:47:25 -07:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs btrfs: Don't panic when we can't find a root key 2019-05-31 06:47:20 -07:00
include cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock 2019-05-31 06:47:25 -07:00
init init: initialize jump labels before command line option parsing 2019-05-16 19:42:23 +02:00
ipc ipc/sem.c: prevent queue.status tearing in semop 2018-09-05 09:26:30 +02:00
kernel sched/rt: Check integer overflow at usec to nsec conversion 2019-05-31 06:47:26 -07:00
lib mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions 2019-05-31 06:47:24 -07:00
mm hugetlb: use same fault hash key for shared and private mappings 2019-05-31 06:47:12 -07:00
net mac80211/cfg80211: update bss channel on channel switch 2019-05-31 06:47:22 -07:00
samples samples: mei: use /dev/mei0 instead of /dev/mei 2019-02-15 08:09:12 +01:00
scripts kconfig/[mn]conf: handle backspace (^H) key 2019-05-04 09:15:22 +02:00
security apparmorfs: fix use-after-free on symlink traversal 2019-05-25 18:25:35 +02:00
sound ASoC: fsl_sai: Update is_slave_mode with correct value 2019-05-31 06:47:22 -07:00
tools libbpf: fix samples/bpf build failure due to undefined UINT32_MAX 2019-05-31 06:47:22 -07:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: arm/arm64: Ensure vcpu target is unset on reset failure 2019-05-25 18:25:35 +02:00
.cocciconfig
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.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
…
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 MAINTAINERS: Add Sasha as a stable branch maintainer 2018-12-01 09:42:50 +01:00
Makefile Linux 4.14.122 2019-05-25 18:25:38 +02:00
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.