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linux-brain/include/crypto
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Ard Biesheuvel 80b9d3becd crypto: shash - avoid comparing pointers to exported functions under CFI 
[ Upstream commit 22ca9f4aaf431a9413dcc115dd590123307f274f ]

crypto_shash_alg_has_setkey() is implemented by testing whether the
.setkey() member of a struct shash_alg points to the default version,
called shash_no_setkey(). As crypto_shash_alg_has_setkey() is a static
inline, this requires shash_no_setkey() to be exported to modules.

Unfortunately, when building with CFI, function pointers are routed
via CFI stubs which are private to each module (or to the kernel proper)
and so this function pointer comparison may fail spuriously.

Let's fix this by turning crypto_shash_alg_has_setkey() into an out of
line function.

Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:53:13 +02:00
..
internal crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
acompress.h crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-11 14:04:05 +02:00
aead.h crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-11 14:04:05 +02:00
aes.h crypto: aes - helper function to validate key length for AES algorithms 2019-08-09 15:11:43 +10:00
akcipher.h crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-11 14:04:05 +02:00
algapi.h crypto: api - Remove redundant #ifdef in crypto_yield() 2019-08-02 14:45:13 +10:00
arc4.h crypto: arc4 - refactor arc4 core code into separate library 2019-06-20 14:18:33 +08:00
asym_tpm_subtype.h KEYS: asym_tpm: extract key size & public key [ver #2] 2018-10-26 09:30:46 +01:00
authenc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
b128ops.h [CRYPTO] lib: some common 128-bit block operations, nicely centralized 2006-12-06 18:38:55 -08:00
blowfish.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cast_common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cast5.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cast6.h crypto: x86 - Regularize glue function prototypes 2021-03-20 10:39:47 +01:00
cbc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
chacha.h crypto: chacha - constify ctx and iv arguments 2019-06-13 14:31:40 +08:00
cryptd.h crypto: cryptd - remove ability to instantiate ablkciphers 2019-04-18 22:15:04 +08:00
ctr.h crypto: ctr - add helper for performing a CTR encryption walk 2019-07-26 14:56:07 +10:00
des.h crypto: des - remove now unused __des3_ede_setkey() 2019-08-22 14:57:33 +10:00
dh.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
drbg.h crypto: drbg - add FIPS 140-2 CTRNG for noise source 2019-05-23 14:01:06 +08:00
ecdh.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
engine.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gcm.h crypto: gcm - helper functions for assoclen/authsize check 2019-08-09 15:11:41 +10:00
gf128mul.h crypto: gf128mul - The x8_ble multiplication functions 2017-11-03 21:50:43 +08:00
ghash.h crypto: ghash - add comment and improve help text 2019-07-27 21:08:38 +10:00
hash_info.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
hash.h crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-11 14:04:05 +02:00
hmac.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
if_alg.h crypto: algif_aead - Only wake up when ctx->more is zero 2020-08-21 13:05:30 +02:00
kpp.h crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-11 14:04:05 +02:00
md5.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nhpoly1305.h crypto: nhpoly1305 - add NHPoly1305 support 2018-11-20 14:26:56 +08:00
null.h crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
padlock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
pcrypt.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
pkcs7.h PKCS#7: Introduce pkcs7_get_digest() 2019-08-05 18:40:19 -04:00
poly1305.h crypto: poly1305 - add Poly1305 core API 2018-11-20 14:26:56 +08:00
public_key.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
rng.h crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-11 14:04:05 +02:00
scatterwalk.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
serpent.h crypto: x86 - Regularize glue function prototypes 2021-03-20 10:39:47 +01:00
sha.h crypto: sha256 - Remove sha256/224_init code duplication 2019-09-05 14:54:54 +10:00
sha1_base.h crypto: add header include guards 2019-08-02 14:44:02 +10:00
sha3.h crypto: sha3-generic - export init/update/final routines 2018-01-26 01:10:34 +11:00
sha256_base.h crypto: sha256 - Remove sha256/224_init code duplication 2019-09-05 14:54:54 +10:00
sha512_base.h crypto: add header include guards 2019-08-02 14:44:02 +10:00
skcipher.h crypto: api - check for ERR pointers in crypto_destroy_tfm() 2021-05-11 14:04:05 +02:00
sm3_base.h crypto: add header include guards 2019-08-02 14:44:02 +10:00
sm3.h crypto: sm3 - add OSCCA SM3 secure hash 2017-09-22 17:43:07 +08:00
sm4.h crypto: sm4 - export encrypt/decrypt routines to other drivers 2018-05-05 14:52:51 +08:00
streebog.h crypto: streebog - fix unaligned memory accesses 2019-04-08 14:42:55 +08:00
twofish.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xts.h crypto: x86 - Regularize glue function prototypes 2021-03-20 10:39:47 +01:00