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Linus Torvalds 7c738cb4ca - Use RIP instead of X86_PF_INSTR for vsyscall emulation
- Remove ENDBR64 from FRED entry points
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Merge tag 'x86_entry_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 entry updates from Dave Hansen:
 "A pair of x86/entry updates.

  The FRED one adjusts the kernel to the latest spec. The spec change
  prevents attackers from abusing kernel entry points.

  The second one came about because of the LASS work[1]. It moves the
  vsyscall emulation code away from depending on X86_PF_INSTR which is
  not available on some CPUs. Those CPUs are pretty obscure these days,
  but this still seems like the right thing to do. It also makes this
  code consistent with some things that the LASS code is going to do.

   - Use RIP instead of X86_PF_INSTR for vsyscall emulation

   - Remove ENDBR64 from FRED entry points"

Link: https://lore.kernel.org/lkml/20250620135325.3300848-1-kirill.shutemov@linux.intel.com/ [1]

* tag 'x86_entry_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fred: Remove ENDBR64 from FRED entry points
  x86/vsyscall: Do not require X86_PF_INSTR to emulate vsyscall
2025-10-04 10:25:22 -07:00
arch - Use RIP instead of X86_PF_INSTR for vsyscall emulation 2025-10-04 10:25:22 -07:00
block Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
Documentation - Make TDX and kexec work together 2025-10-04 10:01:30 -07:00
drivers guest_memfd: 2025-10-04 08:52:16 -07:00
fs It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
include guest_memfd: 2025-10-04 08:52:16 -07:00
init Patch series in this pull request: 2025-10-02 18:44:54 -07:00
io_uring Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
ipc namespace-6.18-rc1 2025-09-29 11:20:29 -07:00
kernel kgdb patches for 6.18 2025-10-04 09:59:05 -07:00
lib Patch series in this pull request: 2025-10-02 18:44:54 -07:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm dma-mapping updates for Linux 6.18: 2025-10-03 17:41:12 -07:00
net NFS Client Updates for Linux 6.18 2025-10-03 14:20:40 -07:00
rust dma-mapping updates for Linux 6.18: 2025-10-03 17:41:12 -07:00
samples Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
scripts It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
security file->f_path constification 2025-10-03 16:32:36 -07:00
sound sound updates for 6.18-rc1 2025-10-02 11:37:19 -07:00
tools guest_memfd: 2025-10-04 08:52:16 -07:00
usr gen_init_cpio: add -a <data_align> as reflink optimization 2025-08-20 16:02:56 -07:00
virt KVM common changes for 6.18 2025-09-30 13:27:59 -04:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: remove Alyssa Rosenzweig 2025-09-18 21:17:31 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore .gitignore: ignore compile_commands.json globally 2025-08-12 15:53:55 -07:00
.mailmap VFIO updates for v6.18-rc1 2025-10-04 08:24:54 -07:00
.pylintrc tools: docs: parse-headers.py: move it from sphinx dir 2025-08-29 15:54:42 -06:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: Delete inactive maintainers from AF_XDP 2025-09-25 13:18:22 +02:00
Kbuild sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS - Make TDX and kexec work together 2025-10-04 10:01:30 -07:00
Makefile It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -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 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.