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Eric Biggers ad28c2ba43 crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 
[ Upstream commit a5e9f557098e54af44ade5d501379be18435bfbf ]

In commit 9f480faec5 ("crypto: chacha20 - Fix keystream alignment for
chacha20_block()"), I had missed that chacha20_block() can be called
directly on the buffer passed to get_random_bytes(), which can have any
alignment.  So, while my commit didn't break anything, it didn't fully
solve the alignment problems.

Revert my solution and just update chacha20_block() to use
put_unaligned_le32(), so the output buffer need not be aligned.
This is simpler, and on many CPUs it's the same speed.

But, I kept the 'tmp' buffers in extract_crng_user() and
_get_random_bytes() 4-byte aligned, since that alignment is actually
needed for _crng_backtrack_protect() too.

Reported-by: Stephan Müller <smueller@chronox.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-20 18:47:11 +01:00
arch ARM: dts: ste: Fix SPI controller node names 2019-11-20 18:47:11 +01:00
block blok, bfq: do not plug I/O if all queues are weight-raised 2019-11-20 18:46:44 +01:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 2019-11-20 18:47:11 +01:00
Documentation media: dt-bindings: adv748x: Fix decimal unit addresses 2019-11-20 18:46:32 +01:00
drivers crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 2019-11-20 18:47:11 +01:00
firmware
fs f2fs: fix to recover inode's uid/gid during POR 2019-11-20 18:47:10 +01:00
include crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 2019-11-20 18:47:11 +01:00
init initramfs: don't free a non-existent initrd 2019-10-01 08:26:09 +02:00
ipc ipc/mqueue.c: only perform resource calculation if user valid 2019-08-06 19:06:52 +02:00
kernel kprobes: Don't call BUG_ON() if there is a kprobe in use on free list 2019-11-20 18:46:30 +01:00
lib crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 2019-11-20 18:47:11 +01:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup() 2019-11-20 18:45:20 +01:00
net netfilter: nf_tables: avoid BUG_ON usage 2019-11-20 18:46:50 +01:00
samples samples/bpf: fix a compilation failure 2019-11-20 18:46:54 +01:00
scripts scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks 2019-11-06 13:05:27 +01:00
security ima: fix freeing ongoing ahash_request 2019-10-11 18:21:11 +02:00
sound ASoC: rt5682: Fix the boost volume at the begining of playback 2019-11-20 18:46:55 +01:00
tools selftests/powerpc: Do not fail with reschedule 2019-11-20 18:46:58 +01:00
usr kbuild: clean compressed initramfs image 2019-10-07 18:57:16 +02:00
virt kvm: x86: mmu: Recovery of shattered NX large pages 2019-11-12 19:21:46 +01:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS USB: rio500: Remove Rio 500 kernel driver 2019-10-17 13:44:47 -07:00
Makefile Linux 4.19.84 2019-11-12 19:21:46 +01:00
README

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.
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.