android_kernel_oneplus_msm8998/arch/arm64/crypto
Elena Petrova e3730353f1 crypto: arm64/sha2-ce - correct digest for empty data in finup
commit 6bd934de1e393466b319d29c4427598fda096c57 upstream.

The sha256-ce finup implementation for ARM64 produces wrong digest
for empty input (len=0). Expected: the actual digest, result: initial
value of SHA internal state. The error is in sha256_ce_finup:
for empty data `finalize` will be 1, so the code is relying on
sha2_ce_transform to make the final round. However, in
sha256_base_do_update, the block function will not be called when
len == 0.

Fix it by setting finalize to 0 if data is empty.

Fixes: 03802f6a80 ("crypto: arm64/sha2-ce - move SHA-224/256 ARMv8 implementation to base layer")
Cc: stable@vger.kernel.org
Signed-off-by: Elena Petrova <lenaptr@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-04 09:34:49 +02:00
..
aes-ce-ccm-core.S crypto: arm64/aes-ccm - fix logical bug in AAD MAC handling 2019-03-23 08:44:34 +01:00
aes-ce-ccm-glue.c
aes-ce-cipher.c
aes-ce-setkey.h
aes-ce.S
aes-glue.c
aes-modes.S
aes-neon.S
crc32-arm64.c
ghash-ce-core.S
ghash-ce-glue.c
Kconfig
Makefile
sha1-ce-core.S crypto: arm64/sha - avoid non-standard inline asm tricks 2018-11-27 16:07:58 +01:00
sha1-ce-glue.c crypto: arm64/sha1-ce - correct digest for empty data in finup 2019-08-04 09:34:49 +02:00
sha2-ce-core.S crypto: arm64/sha - avoid non-standard inline asm tricks 2018-11-27 16:07:58 +01:00
sha2-ce-glue.c crypto: arm64/sha2-ce - correct digest for empty data in finup 2019-08-04 09:34:49 +02:00