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1372a51b88
linux/drivers/crypto
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Daniel Axtens 1372a51b88 crypto: vmx - reject xts inputs that are too short 
When the kernel XTS implementation was extended to deal with ciphertext
stealing in commit 8083b1bf81 ("crypto: xts - add support for ciphertext
stealing"), a check was added to reject inputs that were too short.

However, in the vmx enablement - commit 2396684193 ("crypto: vmx/xts -
use fallback for ciphertext stealing"), that check wasn't added to the
vmx implementation. This disparity leads to errors like the following:

alg: skcipher: p8_aes_xts encryption unexpectedly succeeded on test vector "random: len=0 klen=64"; expected_error=-22, cfg="random: inplace may_sleep use_finup src_divs=[<flush>66.99%@+10, 33.1%@alignmask+1155]"

Return -EINVAL if asked to operate with a cryptlen smaller than the AES
block size. This brings vmx in line with the generic implementation.

Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=206049
Fixes: 2396684193 ("crypto: vmx/xts - use fallback for ciphertext stealing")
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
[dja: commit message]
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-16 15:18:13 +08:00
..
allwinner crypto: sun8i-ce - remove dead code 2020-01-16 15:18:13 +08:00
amcc crypto: crypto4xx - use GFP_KERNEL for big allocations 2020-01-09 11:30:53 +08:00
amlogic crypto: amlogic - fix removal of module 2020-01-16 15:18:12 +08:00
axis crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
bcm crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
caam crypto: caam - add support for i.MX8M Nano 2020-01-16 15:18:13 +08:00
cavium crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
ccp crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
ccree crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
chelsio crypto: chelsio - Resetting crypto counters during the driver unregister 2020-01-09 11:30:58 +08:00
hisilicon Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-01-16 15:17:08 +08:00
inside-secure crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
marvell crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
mediatek crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
nx crypto: nx - remove stale comment referring to the blkcipher walk API 2019-11-17 09:02:49 +08:00
qat crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
qce crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
rockchip crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
stm32 crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
ux500 crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
virtio crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
vmx crypto: vmx - reject xts inputs that are too short 2020-01-16 15:18:13 +08:00
atmel-aes-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel-aes.c crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
atmel-authenc.h crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
atmel-ecc.c crypto: atmel-ecc - factor out code that can be shared 2019-05-30 15:35:45 +08:00
atmel-i2c.c crypto: atmel - Fix -Wunused-const-variable warning 2019-08-30 18:05:31 +10:00
atmel-i2c.h crypto: atmel - Fix -Wunused-const-variable warning 2019-08-30 18:05:31 +10:00
atmel-sha-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel-sha.c crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
atmel-sha204a.c crypto: atmel-sha204a - Use device-managed registration API 2019-08-02 14:43:59 +10:00
atmel-tdes-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel-tdes.c crypto: atmel-{aes,tdes} - Update the IV only when the op succeeds 2019-12-20 14:58:35 +08:00
exynos-rng.c crypto: exynos - use devm_platform_ioremap_resource() to simplify code 2019-08-09 15:11:59 +10:00
geode-aes.c crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
geode-aes.h crypto: geode-aes - convert to skcipher API and make thread-safe 2019-10-23 19:46:56 +11:00
hifn_795x.c crypto: hifn - switch to skcipher API 2019-11-17 09:02:47 +08:00
img-hash.c crypto: img-hash - Use dma_request_chan instead dma_request_slave_channel 2019-12-27 18:18:03 +08:00
ixp4xx_crypto.c crypto: remove CRYPTO_TFM_RES_WEAK_KEY 2020-01-09 11:30:53 +08:00
Kconfig crypto: exynos-rng - Rename Exynos to lowercase 2020-01-09 11:30:58 +08:00
Makefile crypto: sun4i-ss - Move to Allwinner directory 2019-11-01 13:38:31 +08:00
mxs-dcp.c crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
n2_asm.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
n2_core.c crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
n2_core.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
omap-aes-gcm.c crypto: omap-aes-gcm - convert to use crypto engine 2019-12-11 16:37:00 +08:00
omap-aes.c crypto: omap-aes-gcm - convert to use crypto engine 2019-12-11 16:37:00 +08:00
omap-aes.h crypto: omap-aes-gcm - convert to use crypto engine 2019-12-11 16:37:00 +08:00
omap-crypto.c crypto: omap-crypto - copy the temporary data to output buffer properly 2019-12-11 16:37:00 +08:00
omap-crypto.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
omap-des.c crypto: omap-des - handle NULL cipher request 2019-12-11 16:37:00 +08:00
omap-sham.c crypto: omap-sham - fix unaligned sg list handling 2019-12-11 16:37:00 +08:00
padlock-aes.c crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
padlock-sha.c crypto: padlock-sha - Use init_tfm/exit_tfm interface 2019-12-11 16:48:39 +08:00
picoxcell_crypto_regs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
picoxcell_crypto.c crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
qcom-rng.c crypto: qcom-rng - use devm_platform_ioremap_resource() to simplify code 2019-08-09 15:12:03 +10:00
s5p-sss.c crypto: s5p - switch to skcipher API 2019-11-17 09:02:46 +08:00
sahara.c crypto: remove propagation of CRYPTO_TFM_RES_* flags 2020-01-09 11:30:53 +08:00
talitos.c crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
talitos.h crypto: talitos - drop icv_ool 2019-07-03 22:13:11 +08:00