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Jason A. Donenfeld bba3aac224 random: mix build-time latent entropy into pool at init 
commit 1754abb3e7 upstream.

Prior, the "input_pool_data" array needed no real initialization, and so
it was easy to mark it with __latent_entropy to populate it during
compile-time. In switching to using a hash function, this required us to
specifically initialize it to some specific state, which means we
dropped the __latent_entropy attribute. An unfortunate side effect was
this meant the pool was no longer seeded using compile-time random data.
In order to bring this back, we declare an array in rand_initialize()
with __latent_entropy and call mix_pool_bytes() on that at init, which
accomplishes the same thing as before. We make this __initconst, so that
it doesn't take up space at runtime after init.

Fixes: 6e8ec2552c ("random: use computational hash for entropy extraction")
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-25 11:46:37 +02:00
arch powerpc: Use bool in archrandom.h 2022-06-25 11:46:29 +02:00
block block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern 2022-06-06 08:20:57 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-22 11:45:19 +02:00
crypto random: replace custom notifier chain with standard one 2022-06-25 11:46:36 +02:00
Documentation random: treat bootloader trust toggle the same way as cpu trust toggle 2022-06-25 11:46:37 +02:00
drivers random: mix build-time latent entropy into pool at init 2022-06-25 11:46:37 +02:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:20:30 +01:00
fs 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-25 11:46:24 +02:00
include random: replace custom notifier chain with standard one 2022-06-25 11:46:36 +02:00
init random: move rand_initialize() earlier 2022-06-25 11:46:26 +02:00
ipc ipc: WARN if trying to remove ipc object which is absent 2021-12-08 08:46:53 +01:00
kernel random: clear fast pool, crng, and batches in cpuhp bring up 2022-06-25 11:46:35 +02:00
lib random: replace custom notifier chain with standard one 2022-06-25 11:46:36 +02:00
mm hugetlb: fix huge_pmd_unshare address update 2022-06-14 16:53:54 +02:00
net tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd 2022-06-14 16:54:02 +02:00
samples samples/kretprobes: Fix return value if register_kretprobe() failed 2021-11-26 11:40:31 +01:00
scripts modpost: fix undefined behavior of is_arm_mapping_symbol() 2022-06-14 16:54:00 +02:00
security Fix incorrect type in assignment of ipv6 port for audit 2022-04-20 09:08:21 +02:00
sound ALSA: hda/conexant - Fix loopback issue with CX20632 2022-06-14 16:54:01 +02:00
tools perf c2c: Fix sorting in percent_rmt_hitm_cmp() 2022-06-14 16:53:57 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:34:19 +02:00
virt KVM: Prevent module exit until all VMs are freed 2022-04-20 09:08:24 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: co-maintain random.c 2022-06-25 11:46:29 +02:00
Makefile Linux 4.14.284 2022-06-16 13:01:55 +02:00
README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.