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Christophe Leroy b24c640363 crypto: talitos - fix hash on SEC1. commit `58cdbc6d22` upstream. On SEC1, hash provides wrong result when performing hashing in several steps with input data SG list has more than one element. This was detected with CONFIG_CRYPTO_MANAGER_EXTRA_TESTS: [ 44.185947] alg: hash: md5-talitos test failed (wrong result) on test vector 6, cfg="random: may_sleep use_finup src_divs=[<reimport>25.88%@+8063, <flush>24.19%@+9588, 28.63%@+16333, <reimport>4.60%@+6756, 16.70%@+16281] dst_divs=[71.61%@alignmask+16361, 14.36%@+7756, 14.3%@+" [ 44.325122] alg: hash: sha1-talitos test failed (wrong result) on test vector 3, cfg="random: inplace use_final src_divs=[<flush,nosimd>16.56%@+16378, <reimport>52.0%@+16329, 21.42%@alignmask+16380, 10.2%@alignmask+16380] iv_offset=39" [ 44.493500] alg: hash: sha224-talitos test failed (wrong result) on test vector 4, cfg="random: use_final nosimd src_divs=[<reimport>52.27%@+7401, <reimport>17.34%@+16285, <flush>17.71%@+26, 12.68%@+10644] iv_offset=43" [ 44.673262] alg: hash: sha256-talitos test failed (wrong result) on test vector 4, cfg="random: may_sleep use_finup src_divs=[<reimport>60.6%@+12790, 17.86%@+1329, <reimport>12.64%@alignmask+16300, 8.29%@+15, 0.40%@+13506, <reimport>0.51%@+16322, <reimport>0.24%@+16339] dst_divs" This is due to two issues: - We have an overlap between the buffer used for copying the input data (SEC1 doesn't do scatter/gather) and the chained descriptor. - Data copy is wrong when the previous hash left less than one blocksize of data to hash, implying a complement of the previous block with a few bytes from the new request. Fix it by: - Moving the second descriptor after the buffer, as moving the buffer after the descriptor would make it more complex for other cipher operations (AEAD, ABLKCIPHER) - Skip the bytes taken from the new request to complete the previous one by moving the SG list forward. Fixes: `37b5e8897e` ("crypto: talitos - chain in buffered data for ahash on SEC1") Cc: stable@vger.kernel.org Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-07-21 09:03:16 +02:00
arch	s390: fix stfle zero padding	2019-07-21 09:03:14 +02:00
block	block, bfq: NULL out the bic when it's no longer valid	2019-07-14 08:11:17 +02:00
certs	export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()	2018-08-22 23:21:44 +09:00
crypto	crypto: cryptd - Fix skcipher instance memory leak	2019-07-10 09:53:41 +02:00
Documentation	Documentation/admin: Remove the vsyscall=native documentation	2019-07-14 08:11:18 +02:00
drivers	crypto: talitos - fix hash on SEC1.	2019-07-21 09:03:16 +02:00
firmware	kbuild: remove all dummy assignments to obj-	2017-11-18 11:46:06 +09:00
fs	afs: Fix uninitialised spinlock afs_volume::cb_break_lock	2019-07-21 09:03:06 +02:00
include	linux/kernel.h: fix overflow for DIV_ROUND_UP_ULL	2019-07-21 09:03:11 +02:00
init	initramfs: free initrd memory if opening /initrd.image fails	2019-06-15 11:54:01 +02:00
ipc	ipc: prevent lockup on alloc_msg and free_msg	2019-06-15 11:54:00 +02:00
kernel	genirq: Add optional hardware synchronization for shutdown	2019-07-21 09:03:13 +02:00
lib	lib/mpi: Fix karactx leak in mpi_powm	2019-07-10 09:53:42 +02:00
LICENSES	LICENSES: Remove CC-BY-SA-4.0 license text	2018-10-18 11:28:50 +02:00
mm	mm/vmscan.c: prevent useless kswapd loops	2019-07-10 09:53:44 +02:00
net	net :sunrpc :clnt :Fix xps refcount imbalance on the error path	2019-07-14 08:11:15 +02:00
samples	samples, bpf: suppress compiler warning	2019-07-14 08:11:04 +02:00
scripts	scripts/decode_stacktrace.sh: prefix addr2line with $CROSS_COMPILE	2019-07-10 09:53:39 +02:00
security	apparmor: enforce nullbyte at end of tag string	2019-06-25 11:35:54 +08:00
sound	ALSA: hda/realtek - Headphone Mic can't record after S3	2019-07-14 08:11:16 +02:00
tools	perf pmu: Fix uncore PMU alias list for ARM64	2019-07-14 08:11:17 +02:00
usr	initramfs: move gen_initramfs_list.sh from scripts/ to usr/	2018-08-22 23:21:44 +09:00
virt	KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy	2019-07-14 08:11:10 +02:00
.clang-format	clang-format: Set IndentWrappedFunctionNames false	2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes	.gitattributes: set git diff driver for C source code files	2016-10-07 18:46:30 -07:00
.gitignore	Kbuild updates for v4.17 (2nd)	2018-04-15 17:21:30 -07:00
.mailmap	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
COPYING	COPYING: use the new text with points to the license files	2018-03-23 12:41:45 -06:00
CREDITS	9p: remove Ron Minnich from MAINTAINERS	2018-08-17 16:20:26 -07:00
Kbuild	Kbuild updates for v4.15	2017-11-17 17:45:29 -08:00
Kconfig	kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt	2018-08-02 08:06:55 +09:00
MAINTAINERS	platform/x86: Add Intel AtomISP2 dummy / power-management driver	2019-04-20 09:16:02 +02:00
Makefile	Linux 4.19.59	2019-07-14 08:11:23 +02:00
README	Docs: Added a pointer to the formatted docs to README	2018-03-21 09:02:53 -06:00

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.
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.