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Kees Cook dfb2ce9521 randomize_kstack: Improve entropy diffusion 
[ Upstream commit 9c573cd313 ]

The kstack_offset variable was really only ever using the low bits for
kernel stack offset entropy. Add a ror32() to increase bit diffusion.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 39218ff4c6 ("stack: Optionally randomize kernel stack offset each syscall")
Link: https://lore.kernel.org/r/20240309202445.work.165-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-04-13 13:01:48 +02:00
Documentation x86/bhi: Mitigate KVM by default 2024-04-10 16:19:44 +02:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
arch x86/mm/pat: fix VM_PAT handling in COW mappings 2024-04-13 13:01:47 +02:00
block block: prevent division by zero in blk_rq_stat_sum() 2024-04-13 13:01:45 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto exit: Rename module_put_and_exit to module_put_and_kthread_exit 2024-04-10 16:18:55 +02:00
drivers virtio: reenable config if freezing device failed 2024-04-13 13:01:47 +02:00
fs ext4: forbid commit inconsistent quota data when errors=remount-ro 2024-04-13 13:01:45 +02:00
include randomize_kstack: Improve entropy diffusion 2024-04-13 13:01:48 +02:00
init init: open /initrd.image with O_LARGEFILE 2024-04-10 16:19:31 +02:00
io_uring io_uring: ensure '0' is returned on file registration success 2024-04-10 16:19:37 +02:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:28:45 +01:00
kernel ring-buffer: use READ_ONCE() to read cpu_buffer->commit_page in concurrent environment 2024-04-13 13:01:46 +02:00
lib arch: Introduce CONFIG_FUNCTION_ALIGNMENT 2024-04-10 16:18:49 +02:00
mm x86/mm/pat: fix VM_PAT handling in COW mappings 2024-04-13 13:01:47 +02:00
net netfilter: nf_tables: discard table flag update with pending basechain deletion 2024-04-13 13:01:47 +02:00
samples samples/hw_breakpoint: fix building without module unloading 2023-09-23 11:10:01 +02:00
scripts gcc-plugins/stackleak: Avoid .head.text section 2024-04-13 13:01:47 +02:00
security landlock: Warn once if a Landlock action is requested while disabled 2024-04-10 16:18:39 +02:00
sound ASoC: soc-core.c: Skip dummy codec when adding platforms 2024-04-13 13:01:46 +02:00
tools tools: iio: replace seekdir() in iio_generic_buffer 2024-04-13 13:01:46 +02:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-10 16:18:34 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
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.get_maintainer.ignore
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.gitattributes
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.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING
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CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild
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Kconfig
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MAINTAINERS trace: Relocate event helper files 2024-04-10 16:19:24 +02:00
Makefile Linux 5.15.154 2024-04-10 16:19:44 +02:00
README
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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 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.