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Filename Latest commit message Latest commit date
Ard Biesheuvel fee896d453 efi: random: reduce seed size to 32 bytes
commit 161a438d730dade2ba2b1bf8785f0759aba4ca5f upstream.

We no longer need at least 64 bytes of random seed to permit the early
crng init to complete. The RNG is now based on Blake2s, so reduce the
EFI seed size to the Blake2s hash size, which is sufficient for our
purposes.

While at it, drop the READ_ONCE(), which was supposed to prevent size
from being evaluated after seed was unmapped. However, this cannot
actually happen, so READ_ONCE() is unnecessary here.

Cc: <stable@vger.kernel.org> # v4.14+
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-10 17:57:55 +01:00
arch x86/unwind/orc: Fix unreliable stack dump with gcov 2022-11-03 23:56:55 +09:00
block block, bfq: protect 'bfqd->queued' by 'bfqd->lock' 2022-11-10 17:57:54 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-26 13:22:45 +02:00
Documentation tracing/histogram: Update document for KEYS_MAX size 2022-11-10 17:57:55 +01:00
drivers efi: random: reduce seed size to 32 bytes 2022-11-10 17:57:55 +01:00
fs fuse: add file_modified() to fallocate 2022-11-10 17:57:55 +01:00
include efi: random: reduce seed size to 32 bytes 2022-11-10 17:57:55 +01:00
init
ipc memcg: enable accounting of ipc resources 2022-11-10 17:57:54 +01:00
kernel kprobe: reverse kp->flags when arm_kprobe failed 2022-11-10 17:57:55 +01:00
lib dyndbg: let query-modname override actual module name 2022-10-26 13:22:37 +02:00
LICENSES
mm mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages 2022-11-03 23:56:54 +09:00
net tcp/udp: Make early_demux back namespacified. 2022-11-10 17:57:55 +01:00
samples
scripts kbuild: remove the target in signal traps when interrupted 2022-10-26 13:22:46 +02:00
security capabilities: fix potential memleak on error path from vfs_getxattr_alloc() 2022-11-10 17:57:55 +01:00
sound ALSA: aoa: Fix I2S device accounting 2022-11-03 23:56:56 +09:00
tools tools/nolibc/string: Fix memcmp() implementation 2022-11-10 17:57:55 +01:00
usr
virt KVM: arm64: vgic: Fix exit condition in scan_its_table() 2022-10-29 10:20:35 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: add Chandan as xfs maintainer for 5.4.y 2022-09-28 11:03:58 +02:00
Makefile Linux 5.4.223 2022-11-03 23:56:57 +09:00
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 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.