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Kuniyuki Iwashima a5ee448d38 sysctl: Fix data races in proc_doulongvec_minmax(). 
[ Upstream commit c31bcc8fb8 ]

A sysctl variable is accessed concurrently, and there is always a chance
of data-race.  So, all readers and writers need some basic protection to
avoid load/store-tearing.

This patch changes proc_doulongvec_minmax() to use READ_ONCE() and
WRITE_ONCE() internally to fix data-races on the sysctl side.  For now,
proc_doulongvec_minmax() itself is tolerant to a data-race, but we still
need to add annotations on the other subsystem's side.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-21 21:20:07 +02:00
arch ARM: 9210/1: Mark the FDT_FIXED sections as shareable 2022-07-21 21:20:03 +02:00
block block: Fix handling of offline queues in blk_mq_alloc_request_hctx() 2022-06-22 14:13:17 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto crypto: memneq - move into lib/ 2022-06-22 14:13:18 +02:00
Documentation dt-bindings: dma: allwinner,sun50i-a64-dma: Fix min/max typo 2022-07-12 16:32:23 +02:00
drivers net: stmmac: dwc-qos: Disable split header for Tegra194 2022-07-21 21:20:06 +02:00
fs ext4: fix race condition between ext4_write and ext4_convert_inline_data 2022-07-21 21:20:02 +02:00
include cgroup: Use separate src/dst nodes when preloading css_sets for migration 2022-07-21 21:20:00 +02:00
init Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug 2022-06-09 10:21:25 +02:00
ipc ipc/mqueue: use get_tree_nodev() in mqueue_get_tree() 2022-06-09 10:21:17 +02:00
kernel sysctl: Fix data races in proc_doulongvec_minmax(). 2022-07-21 21:20:07 +02:00
lib ida: don't use BUG_ON() for debugging 2022-07-12 16:32:23 +02:00
LICENSES
mm mm: split huge PUD on wp_huge_pud fallback 2022-07-21 21:19:59 +02:00
net wifi: mac80211: fix queue selection for mesh/OCB interfaces 2022-07-21 21:20:00 +02:00
samples
scripts modpost: fix section mismatch check for exported init/exit sections 2022-06-29 08:59:54 +02:00
security ima: Fix a potential integer overflow in ima_appraise_measurement 2022-07-21 21:20:04 +02:00
sound ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array 2022-07-21 21:20:05 +02:00
tools selftests: forwarding: fix error message in learning_test 2022-07-12 16:32:22 +02:00
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MAINTAINERS MAINTAINERS: add Amir as xfs maintainer for 5.10.y 2022-07-02 16:39:22 +02:00
Makefile Linux 5.10.131 2022-07-15 10:14:00 +02:00
README

README 

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

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

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.