KMSAN is unable to understand when initialized values come from assembly. Disable accelerated configs in KMSAN builds to prevent false positive reports. Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx> To: Alexander Potapenko <glider@xxxxxxxxxx> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Cc: Vegard Nossum <vegard.nossum@xxxxxxxxxx> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: linux-mm@xxxxxxxxx --- Change-Id: Iddc71a2a27360e036d719c0940ebf15553cf8de8 --- crypto/Kconfig | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/crypto/Kconfig b/crypto/Kconfig index 9e524044d312..502a75f1b597 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -309,11 +309,15 @@ config CRYPTO_AEGIS128 config CRYPTO_AEGIS128_SIMD bool "Support SIMD acceleration for AEGIS-128" depends on CRYPTO_AEGIS128 && ((ARM || ARM64) && KERNEL_MODE_NEON) + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN default y config CRYPTO_AEGIS128_AESNI_SSE2 tristate "AEGIS-128 AEAD algorithm (x86_64 AESNI+SSE2 implementation)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_AEAD select CRYPTO_SIMD help @@ -571,6 +575,8 @@ config CRYPTO_CRC32C config CRYPTO_CRC32C_INTEL tristate "CRC32c INTEL hardware acceleration" depends on X86 + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_HASH help In Intel processor with SSE4.2 supported, the processor will @@ -611,6 +617,8 @@ config CRYPTO_CRC32 config CRYPTO_CRC32_PCLMUL tristate "CRC32 PCLMULQDQ hardware acceleration" depends on X86 + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_HASH select CRC32 help @@ -649,6 +657,8 @@ config CRYPTO_CRCT10DIF config CRYPTO_CRCT10DIF_PCLMUL tristate "CRCT10DIF PCLMULQDQ hardware acceleration" depends on X86 && 64BIT && CRC_T10DIF + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_HASH help For x86_64 processors with SSE4.2 and PCLMULQDQ supported, @@ -695,6 +705,8 @@ config CRYPTO_POLY1305 config CRYPTO_POLY1305_X86_64 tristate "Poly1305 authenticator algorithm (x86_64/SSE2/AVX2)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_POLY1305 help Poly1305 authenticator algorithm, RFC7539. @@ -814,6 +826,8 @@ config CRYPTO_SHA1 config CRYPTO_SHA1_SSSE3 tristate "SHA1 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_SHA1 select CRYPTO_HASH help @@ -825,6 +839,8 @@ config CRYPTO_SHA1_SSSE3 config CRYPTO_SHA256_SSSE3 tristate "SHA256 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_SHA256 select CRYPTO_HASH help @@ -837,6 +853,8 @@ config CRYPTO_SHA256_SSSE3 config CRYPTO_SHA512_SSSE3 tristate "SHA512 digest algorithm (SSSE3/AVX/AVX2)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_SHA512 select CRYPTO_HASH help @@ -1011,6 +1029,8 @@ config CRYPTO_WP512 config CRYPTO_GHASH_CLMUL_NI_INTEL tristate "GHASH hash function (CLMUL-NI accelerated)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_CRYPTD help This is the x86_64 CLMUL-NI accelerated implementation of @@ -1064,6 +1084,8 @@ config CRYPTO_AES_TI config CRYPTO_AES_NI_INTEL tristate "AES cipher algorithms (AES-NI)" depends on X86 + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_AEAD select CRYPTO_LIB_AES select CRYPTO_ALGAPI @@ -1190,6 +1212,8 @@ config CRYPTO_BLOWFISH_COMMON config CRYPTO_BLOWFISH_X86_64 tristate "Blowfish cipher algorithm (x86_64)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_BLOWFISH_COMMON help @@ -1221,6 +1245,8 @@ config CRYPTO_CAMELLIA_X86_64 tristate "Camellia cipher algorithm (x86_64)" depends on X86 && 64BIT depends on CRYPTO + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 help @@ -1238,6 +1264,8 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64 tristate "Camellia cipher algorithm (x86_64/AES-NI/AVX)" depends on X86 && 64BIT depends on CRYPTO + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_CAMELLIA_X86_64 select CRYPTO_GLUE_HELPER_X86 @@ -1258,6 +1286,8 @@ config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 tristate "Camellia cipher algorithm (x86_64/AES-NI/AVX2)" depends on X86 && 64BIT depends on CRYPTO + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_CAMELLIA_AESNI_AVX_X86_64 help Camellia cipher algorithm module (x86_64/AES-NI/AVX2). @@ -1303,6 +1333,8 @@ config CRYPTO_CAST5 config CRYPTO_CAST5_AVX_X86_64 tristate "CAST5 (CAST-128) cipher algorithm (x86_64/AVX)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_CAST5 select CRYPTO_CAST_COMMON @@ -1325,6 +1357,8 @@ config CRYPTO_CAST6 config CRYPTO_CAST6_AVX_X86_64 tristate "CAST6 (CAST-256) cipher algorithm (x86_64/AVX)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_CAST6 select CRYPTO_CAST_COMMON @@ -1360,6 +1394,8 @@ config CRYPTO_DES_SPARC64 config CRYPTO_DES3_EDE_X86_64 tristate "Triple DES EDE cipher algorithm (x86-64)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_LIB_DES help @@ -1426,6 +1462,8 @@ config CRYPTO_CHACHA20 config CRYPTO_CHACHA20_X86_64 tristate "ChaCha stream cipher algorithms (x86_64/SSSE3/AVX2/AVX-512VL)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_CHACHA20 help @@ -1462,6 +1500,8 @@ config CRYPTO_SERPENT config CRYPTO_SERPENT_SSE2_X86_64 tristate "Serpent cipher algorithm (x86_64/SSE2)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SERPENT @@ -1481,6 +1521,8 @@ config CRYPTO_SERPENT_SSE2_X86_64 config CRYPTO_SERPENT_SSE2_586 tristate "Serpent cipher algorithm (i586/SSE2)" depends on X86 && !64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SERPENT @@ -1500,6 +1542,8 @@ config CRYPTO_SERPENT_SSE2_586 config CRYPTO_SERPENT_AVX_X86_64 tristate "Serpent cipher algorithm (x86_64/AVX)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SERPENT @@ -1520,6 +1564,8 @@ config CRYPTO_SERPENT_AVX_X86_64 config CRYPTO_SERPENT_AVX2_X86_64 tristate "Serpent cipher algorithm (x86_64/AVX2)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_SERPENT_AVX_X86_64 help Serpent cipher algorithm, by Anderson, Biham & Knudsen. @@ -1615,6 +1661,8 @@ config CRYPTO_TWOFISH_586 config CRYPTO_TWOFISH_X86_64 tristate "Twofish cipher algorithm (x86_64)" depends on (X86 || UML_X86) && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_ALGAPI select CRYPTO_TWOFISH_COMMON help @@ -1631,6 +1679,8 @@ config CRYPTO_TWOFISH_X86_64 config CRYPTO_TWOFISH_X86_64_3WAY tristate "Twofish cipher algorithm (x86_64, 3-way parallel)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_TWOFISH_COMMON select CRYPTO_TWOFISH_X86_64 @@ -1652,6 +1702,8 @@ config CRYPTO_TWOFISH_X86_64_3WAY config CRYPTO_TWOFISH_AVX_X86_64 tristate "Twofish cipher algorithm (x86_64/AVX)" depends on X86 && 64BIT + # Disable under KMSAN to prevent false positives from assembly. + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SIMD -- 2.24.0.432.g9d3f5f5b63-goog
