No description
  • C 98.2%
  • Assembly 1%
  • Makefile 0.3%
  • Shell 0.2%
  • Python 0.1%
Find a file
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Sven Schnelle 834681e42a s390: Mark psw in __load_psw_mask() as __unitialized
[ Upstream commit 7278a8fb8d032dfdc03d9b5d17e0bc451cdc1492 ]

Without __unitialized, the following code is generated when
INIT_STACK_ALL_ZERO is enabled:

86: d7 0f f0 a0 f0 a0     xc      160(16,%r15), 160(%r15)
8c: e3 40 f0 a0 00 24     stg     %r4, 160(%r15)
92: c0 10 00 00 00 08     larl    %r1, 0xa2
98: e3 10 f0 a8 00 24     stg     %r1, 168(%r15)
9e: b2 b2 f0 a0           lpswe   160(%r15)

The xc is not adding any security because psw is fully initialized
with the following instructions. Add __unitialized to the psw
definitiation to avoid the superfluous clearing of psw.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-07-18 11:40:54 +02:00
arch s390: Mark psw in __load_psw_mask() as __unitialized 2024-07-18 11:40:54 +02:00
block
certs
crypto
Documentation
drivers ppp: reject claimed-as-LCP but actually malformed packets 2024-07-18 11:40:53 +02:00
fs vfs: don't mod negative dentry count when on shrinker list 2024-07-18 11:40:53 +02:00
include tcp: add TCP_INFO status for failed client TFO 2024-07-18 11:40:53 +02:00
init
ipc
kernel mm: optimize the redundant loop of mm_update_owner_next() 2024-07-18 11:40:51 +02:00
lib
LICENSES
mm Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again" 2024-07-18 11:40:51 +02:00
net udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port(). 2024-07-18 11:40:53 +02:00
samples
scripts
security
sound ALSA: hda/realtek: Enable headset mic of JP-IK LEAP W502 with ALC897 2024-07-18 11:40:52 +02:00
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile
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.