Hangbin Liu deef40c47e crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit ...

[ Upstream commit 1b82435d17 ]

In curve25519_mod_init() the curve25519_alg will be registered only when
(X86_FEATURE_BMI2 && X86_FEATURE_ADX). But in curve25519_mod_exit()
it still checks (X86_FEATURE_BMI2 || X86_FEATURE_ADX) when do crypto
unregister. This will trigger a BUG_ON in crypto_unregister_alg() as
alg->cra_refcnt is 0 if the cpu only supports one of X86_FEATURE_BMI2
and X86_FEATURE_ADX.

Fixes: 07b586fe06 ("crypto: x86/curve25519 - replace with formally verified implementation")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-07-14 16:56:06 +02:00

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.gitignore

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aegis128-aesni-asm.S

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aegis128-aesni-glue.c

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aes_ctrby8_avx-x86_64.S

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aes_glue.c

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aesni-intel_asm.S

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aesni-intel_avx-x86_64.S

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aesni-intel_glue.c

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blake2s-core.S

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blake2s-glue.c

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blowfish_glue.c

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blowfish-x86_64-asm_64.S

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camellia_aesni_avx2_glue.c

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camellia_aesni_avx_glue.c

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camellia_glue.c

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camellia-aesni-avx2-asm_64.S

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camellia-aesni-avx-asm_64.S

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camellia-x86_64-asm_64.S

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cast5_avx_glue.c

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cast5-avx-x86_64-asm_64.S

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cast6_avx_glue.c

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cast6-avx-x86_64-asm_64.S

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chacha_glue.c

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chacha-avx2-x86_64.S

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chacha-avx512vl-x86_64.S

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chacha-ssse3-x86_64.S

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crc32-pclmul_asm.S

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crc32-pclmul_glue.c

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crc32c-intel_glue.c

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crc32c-pcl-intel-asm_64.S

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crct10dif-pcl-asm_64.S

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crct10dif-pclmul_glue.c

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curve25519-x86_64.c

crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit

2021-07-14 16:56:06 +02:00

des3_ede_glue.c

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des3_ede-asm_64.S

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ghash-clmulni-intel_asm.S

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ghash-clmulni-intel_glue.c

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glue_helper-asm-avx2.S

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glue_helper-asm-avx.S

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glue_helper.c

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Makefile

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nh-avx2-x86_64.S

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nh-sse2-x86_64.S

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nhpoly1305-avx2-glue.c

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nhpoly1305-sse2-glue.c

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poly1305_glue.c

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poly1305-x86_64-cryptogams.pl

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serpent_avx2_glue.c

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serpent_avx_glue.c

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serpent_sse2_glue.c

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serpent-avx2-asm_64.S

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serpent-avx-x86_64-asm_64.S

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serpent-sse2-i586-asm_32.S

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serpent-sse2-x86_64-asm_64.S

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sha1_avx2_x86_64_asm.S

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sha1_ni_asm.S

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sha1_ssse3_asm.S

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sha1_ssse3_glue.c

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sha256_ni_asm.S

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sha256_ssse3_glue.c

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sha256-avx2-asm.S

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sha256-avx-asm.S

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sha256-ssse3-asm.S

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sha512_ssse3_glue.c

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sha512-avx2-asm.S

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sha512-avx-asm.S

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sha512-ssse3-asm.S

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twofish_avx_glue.c

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twofish_glue_3way.c

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twofish_glue.c

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twofish-avx-x86_64-asm_64.S

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twofish-i586-asm_32.S

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twofish-x86_64-asm_64-3way.S

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twofish-x86_64-asm_64.S

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