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Message-Id: <20220329124017.737571-34-glider@google.com>
Date: Tue, 29 Mar 2022 14:40:02 +0200
From: Alexander Potapenko <glider@...gle.com>
To: glider@...gle.com
Cc: Alexander Viro <viro@...iv.linux.org.uk>,
Andrew Morton <akpm@...ux-foundation.org>,
Andrey Konovalov <andreyknvl@...gle.com>,
Andy Lutomirski <luto@...nel.org>,
Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>,
Christoph Hellwig <hch@....de>,
Christoph Lameter <cl@...ux.com>,
David Rientjes <rientjes@...gle.com>,
Dmitry Vyukov <dvyukov@...gle.com>,
Eric Dumazet <edumazet@...gle.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Herbert Xu <herbert@...dor.apana.org.au>,
Ilya Leoshkevich <iii@...ux.ibm.com>,
Ingo Molnar <mingo@...hat.com>, Jens Axboe <axboe@...nel.dk>,
Joonsoo Kim <iamjoonsoo.kim@....com>,
Kees Cook <keescook@...omium.org>,
Marco Elver <elver@...gle.com>,
Mark Rutland <mark.rutland@....com>,
Matthew Wilcox <willy@...radead.org>,
"Michael S. Tsirkin" <mst@...hat.com>,
Pekka Enberg <penberg@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Petr Mladek <pmladek@...e.com>,
Steven Rostedt <rostedt@...dmis.org>,
Thomas Gleixner <tglx@...utronix.de>,
Vasily Gorbik <gor@...ux.ibm.com>,
Vegard Nossum <vegard.nossum@...cle.com>,
Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org,
linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 33/48] crypto: kmsan: disable accelerated configs under KMSAN
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@...gle.com>
---
Link: https://linux-review.googlesource.com/id/Idb2334bf3a1b68b31b399709baefaa763038cc50
---
crypto/Kconfig | 30 ++++++++++++++++++++++++++++++
drivers/net/Kconfig | 1 +
2 files changed, 31 insertions(+)
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 442765219c375..c5e1c86043bbf 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -290,6 +290,7 @@ config CRYPTO_CURVE25519
config CRYPTO_CURVE25519_X86
tristate "x86_64 accelerated Curve25519 scalar multiplication library"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_LIB_CURVE25519_GENERIC
select CRYPTO_ARCH_HAVE_LIB_CURVE25519
@@ -338,11 +339,13 @@ config CRYPTO_AEGIS128
config CRYPTO_AEGIS128_SIMD
bool "Support SIMD acceleration for AEGIS-128"
depends on CRYPTO_AEGIS128 && ((ARM || ARM64) && KERNEL_MODE_NEON)
+ depends on !KMSAN # avoid false positives from assembly
default y
config CRYPTO_AEGIS128_AESNI_SSE2
tristate "AEGIS-128 AEAD algorithm (x86_64 AESNI+SSE2 implementation)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_AEAD
select CRYPTO_SIMD
help
@@ -478,6 +481,7 @@ config CRYPTO_NHPOLY1305
config CRYPTO_NHPOLY1305_SSE2
tristate "NHPoly1305 hash function (x86_64 SSE2 implementation)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_NHPOLY1305
help
SSE2 optimized implementation of the hash function used by the
@@ -486,6 +490,7 @@ config CRYPTO_NHPOLY1305_SSE2
config CRYPTO_NHPOLY1305_AVX2
tristate "NHPoly1305 hash function (x86_64 AVX2 implementation)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_NHPOLY1305
help
AVX2 optimized implementation of the hash function used by the
@@ -599,6 +604,7 @@ config CRYPTO_CRC32C
config CRYPTO_CRC32C_INTEL
tristate "CRC32c INTEL hardware acceleration"
depends on X86
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_HASH
help
In Intel processor with SSE4.2 supported, the processor will
@@ -639,6 +645,7 @@ config CRYPTO_CRC32
config CRYPTO_CRC32_PCLMUL
tristate "CRC32 PCLMULQDQ hardware acceleration"
depends on X86
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_HASH
select CRC32
help
@@ -704,6 +711,7 @@ config CRYPTO_BLAKE2S
config CRYPTO_BLAKE2S_X86
tristate "BLAKE2s digest algorithm (x86 accelerated version)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_LIB_BLAKE2S_GENERIC
select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
@@ -718,6 +726,7 @@ config CRYPTO_CRCT10DIF
config CRYPTO_CRCT10DIF_PCLMUL
tristate "CRCT10DIF PCLMULQDQ hardware acceleration"
depends on X86 && 64BIT && CRC_T10DIF
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_HASH
help
For x86_64 processors with SSE4.2 and PCLMULQDQ supported,
@@ -765,6 +774,7 @@ config CRYPTO_POLY1305
config CRYPTO_POLY1305_X86_64
tristate "Poly1305 authenticator algorithm (x86_64/SSE2/AVX2)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_LIB_POLY1305_GENERIC
select CRYPTO_ARCH_HAVE_LIB_POLY1305
help
@@ -853,6 +863,7 @@ config CRYPTO_SHA1
config CRYPTO_SHA1_SSSE3
tristate "SHA1 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SHA1
select CRYPTO_HASH
help
@@ -864,6 +875,7 @@ config CRYPTO_SHA1_SSSE3
config CRYPTO_SHA256_SSSE3
tristate "SHA256 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SHA256
select CRYPTO_HASH
help
@@ -876,6 +888,7 @@ config CRYPTO_SHA256_SSSE3
config CRYPTO_SHA512_SSSE3
tristate "SHA512 digest algorithm (SSSE3/AVX/AVX2)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SHA512
select CRYPTO_HASH
help
@@ -1034,6 +1047,7 @@ config CRYPTO_WP512
config CRYPTO_GHASH_CLMUL_NI_INTEL
tristate "GHASH hash function (CLMUL-NI accelerated)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_CRYPTD
help
This is the x86_64 CLMUL-NI accelerated implementation of
@@ -1084,6 +1098,7 @@ config CRYPTO_AES_TI
config CRYPTO_AES_NI_INTEL
tristate "AES cipher algorithms (AES-NI)"
depends on X86
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_AEAD
select CRYPTO_LIB_AES
select CRYPTO_ALGAPI
@@ -1208,6 +1223,7 @@ config CRYPTO_BLOWFISH_COMMON
config CRYPTO_BLOWFISH_X86_64
tristate "Blowfish cipher algorithm (x86_64)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_BLOWFISH_COMMON
imply CRYPTO_CTR
@@ -1238,6 +1254,7 @@ config CRYPTO_CAMELLIA
config CRYPTO_CAMELLIA_X86_64
tristate "Camellia cipher algorithm (x86_64)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
imply CRYPTO_CTR
help
@@ -1254,6 +1271,7 @@ config CRYPTO_CAMELLIA_X86_64
config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
tristate "Camellia cipher algorithm (x86_64/AES-NI/AVX)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_CAMELLIA_X86_64
select CRYPTO_SIMD
@@ -1272,6 +1290,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64
tristate "Camellia cipher algorithm (x86_64/AES-NI/AVX2)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_CAMELLIA_AESNI_AVX_X86_64
help
Camellia cipher algorithm module (x86_64/AES-NI/AVX2).
@@ -1317,6 +1336,7 @@ config CRYPTO_CAST5
config CRYPTO_CAST5_AVX_X86_64
tristate "CAST5 (CAST-128) cipher algorithm (x86_64/AVX)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_CAST5
select CRYPTO_CAST_COMMON
@@ -1340,6 +1360,7 @@ config CRYPTO_CAST6
config CRYPTO_CAST6_AVX_X86_64
tristate "CAST6 (CAST-256) cipher algorithm (x86_64/AVX)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_CAST6
select CRYPTO_CAST_COMMON
@@ -1373,6 +1394,7 @@ config CRYPTO_DES_SPARC64
config CRYPTO_DES3_EDE_X86_64
tristate "Triple DES EDE cipher algorithm (x86-64)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_LIB_DES
imply CRYPTO_CTR
@@ -1430,6 +1452,7 @@ config CRYPTO_CHACHA20
config CRYPTO_CHACHA20_X86_64
tristate "ChaCha stream cipher algorithms (x86_64/SSSE3/AVX2/AVX-512VL)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_LIB_CHACHA_GENERIC
select CRYPTO_ARCH_HAVE_LIB_CHACHA
@@ -1473,6 +1496,7 @@ config CRYPTO_SERPENT
config CRYPTO_SERPENT_SSE2_X86_64
tristate "Serpent cipher algorithm (x86_64/SSE2)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_SERPENT
select CRYPTO_SIMD
@@ -1492,6 +1516,7 @@ config CRYPTO_SERPENT_SSE2_X86_64
config CRYPTO_SERPENT_SSE2_586
tristate "Serpent cipher algorithm (i586/SSE2)"
depends on X86 && !64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_SERPENT
select CRYPTO_SIMD
@@ -1511,6 +1536,7 @@ config CRYPTO_SERPENT_SSE2_586
config CRYPTO_SERPENT_AVX_X86_64
tristate "Serpent cipher algorithm (x86_64/AVX)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_SERPENT
select CRYPTO_SIMD
@@ -1531,6 +1557,7 @@ config CRYPTO_SERPENT_AVX_X86_64
config CRYPTO_SERPENT_AVX2_X86_64
tristate "Serpent cipher algorithm (x86_64/AVX2)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SERPENT_AVX_X86_64
help
Serpent cipher algorithm, by Anderson, Biham & Knudsen.
@@ -1672,6 +1699,7 @@ config CRYPTO_TWOFISH_586
config CRYPTO_TWOFISH_X86_64
tristate "Twofish cipher algorithm (x86_64)"
depends on (X86 || UML_X86) && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_ALGAPI
select CRYPTO_TWOFISH_COMMON
imply CRYPTO_CTR
@@ -1689,6 +1717,7 @@ config CRYPTO_TWOFISH_X86_64
config CRYPTO_TWOFISH_X86_64_3WAY
tristate "Twofish cipher algorithm (x86_64, 3-way parallel)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_TWOFISH_COMMON
select CRYPTO_TWOFISH_X86_64
@@ -1709,6 +1738,7 @@ config CRYPTO_TWOFISH_X86_64_3WAY
config CRYPTO_TWOFISH_AVX_X86_64
tristate "Twofish cipher algorithm (x86_64/AVX)"
depends on X86 && 64BIT
+ depends on !KMSAN # avoid false positives from assembly
select CRYPTO_SKCIPHER
select CRYPTO_SIMD
select CRYPTO_TWOFISH_COMMON
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index b2a4f998c180e..fed89b6981759 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -76,6 +76,7 @@ config WIREGUARD
tristate "WireGuard secure network tunnel"
depends on NET && INET
depends on IPV6 || !IPV6
+ depends on !KMSAN # KMSAN doesn't support the crypto configs below
select NET_UDP_TUNNEL
select DST_CACHE
select CRYPTO
--
2.35.1.1021.g381101b075-goog
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