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Linus Torvalds 70442fc54e * Detect insecure W+X mappings and warn about them, including a
few bug fixes and relaxing the enforcement
  * Do a long-overdue defconfig update and enabling W+X boot-time
    detection
  * Cleanup _PAGE_PSE handling (follow-up on an earlier bug)
  * Rename a change_page_attr function
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Merge tag 'x86_mm_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm updates from Dave Hansen:
 "There are some small things here, plus one big one.

  The big one detected and refused to create W+X kernel mappings. This
  caused a bit of trouble and it is entirely disabled on 32-bit due to
  known unfixable EFI issues. It also oopsed on some systemd eBPF use,
  which kept some users from booting.

  The eBPF issue is fixed, but those troubles were caught relatively
  recently which made me nervous that there are more lurking. The final
  commit in here retains the warnings, but doesn't actually refuse to
  create W+X mappings.

  Summary:

   - Detect insecure W+X mappings and warn about them, including a few
     bug fixes and relaxing the enforcement

   - Do a long-overdue defconfig update and enabling W+X boot-time
     detection

   - Cleanup _PAGE_PSE handling (follow-up on an earlier bug)

   - Rename a change_page_attr function"

* tag 'x86_mm_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Ease W^X enforcement back to just a warning
  x86/mm: Disable W^X detection and enforcement on 32-bit
  x86/mm: Add prot_sethuge() helper to abstract out _PAGE_PSE handling
  x86/mm/32: Fix W^X detection when page tables do not support NX
  x86/defconfig: Enable CONFIG_DEBUG_WX=y
  x86/defconfig: Refresh the defconfigs
  x86/mm: Refuse W^X violations
  x86/mm: Rename set_memory_present() to set_memory_p()
2022-10-10 17:13:07 -07:00
arch * Detect insecure W+X mappings and warn about them, including a 2022-10-10 17:13:07 -07:00
block cgroup changes for v6.1-rc1. 2022-10-10 11:12:25 -07:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto crypto: tcrypt - add async speed test for aria cipher 2022-09-24 16:14:44 +08:00
Documentation IOMMU Updates for Linux v6.1: 2022-10-10 13:20:53 -07:00
drivers virtio: fixes, features 2022-10-10 14:02:53 -07:00
fs Xtensa updates for v6.1 2022-10-10 14:21:11 -07:00
include virtio: fixes, features 2022-10-10 14:02:53 -07:00
init Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
io_uring for-6.1/passthrough-2022-10-04 2022-10-07 09:35:50 -07:00
ipc ipc: mqueue: fix possible memory leak in init_mqueue_fs() 2022-10-09 16:10:22 -07:00
kernel More ACPI updates for 6.1-rc1 2022-10-10 13:28:06 -07:00
lib dma-mapping updates for Linux 6.1 2022-10-10 13:24:55 -07:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm cgroup changes for v6.1-rc1. 2022-10-10 11:12:25 -07:00
net cgroup changes for v6.1-rc1. 2022-10-10 11:12:25 -07:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples Tracing updates for 6.1: 2022-10-10 12:20:55 -07:00
scripts Devicetree updates for v6.1: 2022-10-10 13:13:51 -07:00
security tpmdd updates for Linux v6.1-rc1 2022-10-10 13:09:33 -07:00
sound sound updates for 6.1-rc1 2022-10-05 12:02:07 -07:00
tools More power management updates for 6.1-rc1 2022-10-10 13:39:03 -07:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: remove KVM_REQ_UNHALT 2022-09-26 12:37:21 -04:00
.clang-format PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap The first batch of KVM patches, mostly covering x86, which I 2022-10-09 09:39:55 -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 drm for 5.20/6.0 2022-08-03 19:52:08 -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 dma-mapping updates for Linux 6.1 2022-10-10 13:24:55 -07:00
Makefile Devicetree updates for v6.1: 2022-10-10 13:13:51 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.