Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-01 02:33:57 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
Linux kernel source tree
1,309,693 Commits 3 Branches 867 Tags 3.5 GiB
C 97.5%
Assembly 1%
Shell 0.6%
Python 0.3%
Makefile 0.3%
ade8ff3b6a
Go to file
Linus Torvalds ade8ff3b6a - AMD Zen CPUs before gen 4 do not flush the RAS (Return Address Stack) 
as part of IBPB. Make sure that happens by doing the flushing in
   software on those generations
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmcI+6UACgkQEsHwGGHe
 VUrYVw/+JmJHckfzI1jqc+FIGkG124X5l5ml3nUwExyL5anZk3KY6QEhvEjk8xgt
 5pLYaHd76W21DWsP5AOXwsLAOBptsN8E7zwmG4Wg4H9EOkcQYDujlm0a8ne+zmqk
 NQh/y7NzACruYJoDzo0S89Gcz2IUZ3C5HTKp9GUor4cUOw1wZsEm5RHAkl+SlK9j
 amGq4ABO6xE6UjnrZMDW1uo253nCTZjH9DZvwzzLXULaAQjTvn6lowSPCJWZezNh
 ue2Tdl/GYo6qbHyd7OYK4N4IxWNJujHLlcIXJ/mU3EPVKBh98f3SZakvoXMuWkBL
 KS5xxHf86Un+8UM59ZYIK8263O8CmlgmOosk+wPV2DZfnomG/dxoYvaZ7x41X2I+
 xdGMiHBP3SaQmqIxdvVCbtBIoLLd5MQ/JtAcDuLM4pbXBgLTxSfF7fDb4OtpuCwe
 QybeQ33QNCAn63DT+3bbWKxQpzC9vpu2+t48XV9a/rgQpsnMBodFP6RSxXxBsH4I
 zRDMoeyfn1mTiGRbbuhwNq52M01L1G8bkJ5sX0m/PB5XGhkg46998i93W8yAKKHY
 5sF1sP53idK94CNcA0fs/Z8ZoKmkszoh8GDAn3Pb+eP+m9f7EDL9AVanBzerJhfJ
 i69EfM9r0ESIkmmmjaycn2EVzwQ5Vtv1r/LgDI4up2bQzbPS6So=
 =ovJa
 -----END PGP SIGNATURE-----

Merge tag 'x86_bugs_post_ibpb' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 IBPB fixes from Borislav Petkov:
 "This fixes the IBPB implementation of older AMDs (< gen4) that do not
  flush the RSB (Return Address Stack) so you can still do some leaking
  when using a "=ibpb" mitigation for Retbleed or SRSO. Fix it by doing
  the flushing in software on those generations.

  IBPB is not the default setting so this is not likely to affect
  anybody in practice"

* tag 'x86_bugs_post_ibpb' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Do not use UNTRAIN_RET with IBPB on entry
  x86/bugs: Skip RSB fill at VMEXIT
  x86/entry: Have entry_ibpb() invalidate return predictions
  x86/cpufeatures: Add a IBPB_NO_RET BUG flag
  x86/cpufeatures: Define X86_FEATURE_AMD_IBPB_RET
2024-10-17 19:12:38 -07:00
arch - AMD Zen CPUs before gen 4 do not flush the RAS (Return Address Stack) 2024-10-17 19:12:38 -07:00
block block-6.12-20241004 2024-10-04 10:43:44 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto This push fixes the following issues: 2024-10-16 08:42:54 -07:00
Documentation 28 hotfixes. 13 are cc:stable. 23 are MM. 2024-10-17 16:33:06 -07:00
drivers Two clk driver fixes and a unit test fix: 2024-10-17 16:24:42 -07:00
fs 28 hotfixes. 13 are cc:stable. 23 are MM. 2024-10-17 16:33:06 -07:00
include 28 hotfixes. 13 are cc:stable. 23 are MM. 2024-10-17 16:33:06 -07:00
init cfi: encode cfi normalized integers + kasan/gcov bug in Kconfig 2024-09-26 21:27:27 +02:00
io_uring io_uring/rw: allow pollable non-blocking attempts for !FMODE_NOWAIT 2024-10-06 20:58:53 -06:00
ipc struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
kernel No contributions from subtrees. 2024-10-17 09:31:18 -07:00
lib 28 hotfixes. 13 are cc:stable. 23 are MM. 2024-10-17 16:33:06 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm/mglru: only clear kswapd_failures if reclaimable 2024-10-17 00:28:12 -07:00
net No contributions from subtrees. 2024-10-17 09:31:18 -07:00
rust Driver core fix for 6.12-rc3 2024-10-13 09:10:52 -07:00
samples [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
scripts kbuild: deb-pkg: Remove blank first line from maint scripts 2024-10-07 02:36:38 +09:00
security bcachefs: do not use PF_MEMALLOC_NORECLAIM 2024-10-09 12:47:18 -07:00
sound ALSA: hda/conexant - Use cached pin control for Node 0x1d on HP EliteOne 1000 G2 2024-10-16 10:29:57 +02:00
tools 28 hotfixes. 13 are cc:stable. 23 are MM. 2024-10-17 16:33:06 -07:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt x86: 2024-09-28 09:20:14 -07:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Kbuild updates for v6.12 2024-09-24 13:02:06 -07:00
.mailmap mailmap: add an entry for Andy Chiu 2024-10-17 00:28:08 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS CREDITS: sort alphabetically by name 2024-10-09 12:47:19 -07:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS 28 hotfixes. 13 are cc:stable. 23 are MM. 2024-10-17 16:33:06 -07:00
Makefile Linux 6.12-rc3 2024-10-13 14:33:32 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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 reStructuredText 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.