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Performance oriented customized Linux kernel based on the mainline kernel.
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Jens Axboe 52a5c47ae9 io_uring/kbuf: sanitize peek buffer setup 
[ Upstream commit e0ee967630 ]

Harden the buffer peeking a bit, by adding a sanity check for it having
a valid size. Outside of that, arg->max_len is a size_t, though it's
only ever set to a 32-bit value (as it's governed by MAX_RW_COUNT).
Bump our needed check to a size_t so we know it fits. Finally, cap the
calculated needed iov value to the PEEK_MAX_IMPORT, which is the
maximum number of segments that should be peeked.

Fixes: 35c8711c8f ("io_uring/kbuf: add helpers for getting/peeking multiple buffers")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-08-29 17:36:04 +02:00
arch arm64: Fix KASAN random tag seed initialization 2024-08-29 17:35:53 +02:00
block block: Fix lockdep warning in blk_mq_mark_tag_wait 2024-08-29 17:35:53 +02:00
certs kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
crypto This push fixes a bug in the new ecc P521 code as well as a buggy 2024-05-20 08:47:54 -07:00
Documentation cpu/SMT: Enable SMT only if a core is online 2024-08-29 17:35:52 +02:00
drivers mmc: mmc_test: Fix NULL dereference on allocation failure 2024-08-29 17:36:04 +02:00
fs smb/client: avoid possible NULL dereference in cifs_free_subrequest() 2024-08-29 17:35:54 +02:00
include kcm: Serialise kcm_sendmsg() for the same socket. 2024-08-29 17:35:57 +02:00
init rust: fix the default format for CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT 2024-08-29 17:35:52 +02:00
io_uring io_uring/kbuf: sanitize peek buffer setup 2024-08-29 17:36:04 +02:00
ipc Mainly singleton patches, documented in their respective changelogs. 2024-05-19 14:02:03 -07:00
kernel workqueue: Fix spruious data race in __flush_work() 2024-08-29 17:36:03 +02:00
lib debugobjects: Annotate racy debug variables 2024-08-14 15:34:06 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm memcg_write_event_control(): fix a user-triggerable oops 2024-08-29 17:35:43 +02:00
net s390/iucv: Fix vargs handling in iucv_alloc_device() 2024-08-29 17:36:01 +02:00
rust rust: avoid unused import warning in rusttest 2024-06-11 23:33:28 +02:00
samples tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
scripts kbuild: avoid scripts/kallsyms parsing /dev/null 2024-08-29 17:35:55 +02:00
security selinux: add the processing of the failure of avc_add_xperms_decision() 2024-08-29 17:35:41 +02:00
sound ALSA: hda/tas2781: Use correct endian conversion 2024-08-29 17:35:55 +02:00
tools selftests: mlxsw: ethtool_lanes: Source ethtool lib from correct path 2024-08-29 17:36:00 +02:00
usr kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
virt KVM fixes for 6.10 2024-06-21 08:03:55 -04:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.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 kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap MAINTAINERS: mailmap: update Lorenzo Stoakes's email address 2024-07-06 11:39:51 -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 pci-v6.10-fixes-2 2024-07-05 12:33:00 -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 Fixes for the I2C testunit, the Renesas R-Car driver and some 2024-07-13 16:34:22 -07:00
Makefile Makefile: add $(srctree) to dependency of compile_commands.json target 2024-08-29 17:35:55 +02:00
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.