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linux/include
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Eric Biggers 8e2d31a6e3 UPSTREAM: crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 
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>

(cherry picked from commit a5e9f55709)
Bug: 112008522
Test: As series, see Ic61c13b53facfd2173065be715a7ee5f3af8760b
Change-Id: Ic355d2416330ae2f4a50cb7064633810e35a93bf
Signed-off-by: Eric Biggers <ebiggers@google.com>
2018-12-05 09:48:14 -08:00
..
acpi ACPICA: Update version to 20180810 2018-08-14 23:49:13 +02:00
asm-generic vmlinux.lds.h: Fix linker warnings about orphan .LPBX sections 2018-10-12 08:55:29 +11:00
clocksource
crypto UPSTREAM: crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 2018-12-05 09:48:14 -08:00
drm drm: Get ref on CRTC commit object when waiting for flip_done 2018-10-18 14:23:13 -04:00
dt-bindings ARM: SoC: late updates 2018-08-25 14:12:36 -07:00
keys
kvm
linux ANDROID: fs: Restore vfs_path_lookup() export 2018-12-05 09:48:14 -08:00
math-emu
media media: cec: fix the Signal Free Time calculation 2018-11-13 11:08:53 -08:00
memory
misc
net ANDROID: net: ipv6: autoconf routes into per-device tables 2018-12-05 09:48:13 -08:00
pcmcia pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function 2018-08-18 12:30:42 -07:00
ras
rdma IB/rxe: Revise the ib_wr_opcode enum 2018-11-13 11:08:43 -08:00
scsi SCSI misc on 20180815 2018-08-15 22:06:26 -07:00
soc soc: fsl: qbman: add APIs to retrieve the probing status 2018-09-27 15:43:35 -05:00
sound ASoC: Fixes for v4.19 2018-09-17 18:59:21 +02:00
target
trace ANDROID: trace: sched: add sched blocked tracepoint which dumps out context of sleep. 2018-12-05 09:48:12 -08:00
uapi ANDROID: sdcardfs: Define magic value 2018-12-05 09:48:14 -08:00
video fbdev changes for v4.19: 2018-08-23 15:44:58 -07:00
xen CONFIG_XEN_PV breaks xen_create_contiguous_region on ARM 2018-11-21 09:19:28 +01:00