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Jens Axboe 607d09d1a0 io_uring/kbuf: limit legacy provided buffer lists to USHRT_MAX
The buffer ID for a provided buffer is an unsigned short, and hence
there can only be 64k added to any given buffer list before having
duplicate BIDs. Cap the legacy provided buffers at 64k in the list.
This is mostly to prevent silly stall reports from syzbot, which
likes to dump tons of buffers into a list and then have kernels with
lockdep and kasan churning through them and hitting long wait times
for buffer pruning at ring exit time.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-06-03 15:32:44 -06:00
arch A set of cleanups for the generic interrupt subsystem: 2025-05-27 08:07:32 -07:00
block xfs: New code for 6.16 2025-05-26 12:56:01 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto This update includes the following changes: 2025-05-26 13:47:28 -07:00
Documentation Updates for the MSI subsystem (core code and PCI): 2025-05-27 08:15:26 -07:00
drivers Updates for the MSI subsystem (core code and PCI): 2025-05-27 08:15:26 -07:00
fs This update includes the following changes: 2025-05-26 13:47:28 -07:00
include Updates for the MSI subsystem (core code and PCI): 2025-05-27 08:15:26 -07:00
init Scheduler updates for v6.16: 2025-05-26 15:19:58 -07:00
io_uring io_uring/kbuf: limit legacy provided buffer lists to USHRT_MAX 2025-06-03 15:32:44 -06:00
ipc VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
kernel Updates for the MSI subsystem (core code and PCI): 2025-05-27 08:15:26 -07:00
lib linux_kselftest-kunit-6.16-rc1 2025-05-26 14:29:44 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm Locking changes for v6.16: 2025-05-26 14:42:07 -07:00
net vfs-6.16-rc1.coredump 2025-05-26 11:17:01 -07:00
rust RCU pull request for v6.16 2025-05-26 14:20:50 -07:00
samples configfs-for-v6.16 2025-05-26 12:28:55 -07:00
scripts Core x86 updates for v6.16: 2025-05-26 16:04:17 -07:00
security vfs-6.16-rc1.async.dir 2025-05-26 08:02:43 -07:00
sound Core x86 updates for v6.16: 2025-05-26 16:04:17 -07:00
tools Core x86 updates for v6.16: 2025-05-26 16:04:17 -07:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt ARM: 2025-04-08 13:47:55 -07:00
.clang-format clang-format: Update the ForEachMacros list for v6.15-rc1 2025-04-13 11:03:59 +02:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig 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 MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
.mailmap 22 hotfixes. 13 are cc:stable and the remainder address post-6.14 issues 2025-05-25 07:48:35 -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: update SLAB ALLOCATOR maintainers 2025-04-17 20:10:06 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS MAINTAINERS: remove myself from io_uring 2025-06-02 05:51:28 -06:00
Makefile Linux 6.15 2025-05-25 16:09:23 -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.