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Jens Axboe 858e686a30 io_uring/rsrc: ignore dummy_ubuf for buffer cloning
For placeholder buffers, &dummy_ubuf is assigned which is a static
value. When buffers are attempted cloned, don't attempt to grab a
reference to it, as we both don't need it and it'll actively fail as
dummy_ubuf doesn't have a valid reference count setup.

Link: https://lore.kernel.org/io-uring/Zw8dkUzsxQ5LgAJL@ly-workstation/
Reported-by: Lai, Yi <yi1.lai@linux.intel.com>
Fixes: 7cc2a6eadc ("io_uring: add IORING_REGISTER_COPY_BUFFERS method")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-10-16 07:09:25 -06:00
arch RISC-V Patches for the 6.12 Merge Window, Part 1 2024-09-24 10:59:17 -07:00
block vfs-6.12.blocksize 2024-09-20 17:53:17 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto KEYS: prevent NULL pointer dereference in find_asymmetric_key() 2024-09-20 19:49:49 +03:00
Documentation sched_ext: Fixes for v6.12-rc1 2024-09-24 11:33:50 -07:00
drivers RISC-V Patches for the 6.12 Merge Window, Part 1 2024-09-24 10:59:17 -07:00
fs Summary 2024-09-24 11:08:40 -07:00
include for-6.12/io_uring-20240922 2024-09-24 11:11:38 -07:00
init sched_ext: Initial pull request for v6.12 2024-09-21 09:44:57 -07:00
io_uring io_uring/rsrc: ignore dummy_ubuf for buffer cloning 2024-10-16 07:09:25 -06:00
ipc struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
kernel sched_ext: Fixes for v6.12-rc1 2024-09-24 11:33:50 -07:00
lib The core clk framework is left largely untouched this time around except for 2024-09-23 15:01:48 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm lsm/stable-6.12 PR 20240923 2024-09-24 10:18:15 -07:00
net NFSD 6.12 Release Notes 2024-09-23 12:01:45 -07:00
rust Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-09-05 20:37:20 -07:00
samples Landlock updates for v6.12-rc1 2024-09-24 10:40:11 -07:00
scripts Hi, 2024-09-24 10:26:01 -07:00
security Landlock updates for v6.12-rc1 2024-09-24 10:40:11 -07:00
sound firewire updates for v6.12 2024-09-23 12:55:27 -07:00
tools sched_ext: Fixes for v6.12-rc1 2024-09-24 11:33:50 -07:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
.clang-format Docs: Move clang-format from process/ to dev-tools/ 2024-06-26 16:36:00 -06:00
.cocciconfig
.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 .gitignore: add .gcda files 2024-08-09 13:18:46 +01:00
.mailmap Summary 2024-09-24 11:08:40 -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 MAINTAINERS: Mark powerpc spufs as orphaned 2024-08-19 21:27:56 +10:00
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 Summary 2024-09-24 11:08:40 -07:00
Makefile Linux 6.11 2024-09-15 16:57:56 +02:00
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.