Certain config options are currently incompatible with KMSAN, disable them. Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx> To: Alexander Potapenko <glider@xxxxxxxxxx> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: Harry Wentland <harry.wentland@xxxxxxx> Cc: Vegard Nossum <vegard.nossum@xxxxxxxxxx> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: linux-mm@xxxxxxxxx --- Change-Id: I4521f5c764cfaeba2fae79c954925c302c5e3bc0 --- arch/Kconfig | 2 +- arch/x86/Kconfig | 1 + arch/x86/Kconfig.debug | 3 +++ crypto/Kconfig | 26 ++++++++++++++++++++++++++ drivers/gpu/drm/amd/display/Kconfig | 2 +- lib/Kconfig.debug | 3 +++ 6 files changed, 35 insertions(+), 2 deletions(-) diff --git a/arch/Kconfig b/arch/Kconfig index 5f8a5d84dbbe..d5ca838ae8ad 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -843,7 +843,7 @@ config HAVE_ARCH_VMAP_STACK config VMAP_STACK default y bool "Use a virtually-mapped stack" - depends on HAVE_ARCH_VMAP_STACK && !KASAN + depends on HAVE_ARCH_VMAP_STACK && !KASAN && !KMSAN ---help--- Enable this if you want the use virtually-mapped kernel stacks with guard pages. This causes kernel stack overflows to be diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 3f83a5c53808..6d2b0fb3a871 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2143,6 +2143,7 @@ config RELOCATABLE config RANDOMIZE_BASE bool "Randomize the address of the kernel image (KASLR)" depends on RELOCATABLE + depends on !KMSAN default y ---help--- In support of Kernel Address Space Layout Randomization (KASLR), diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index bf9cd83de777..db3cd6147829 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -292,6 +292,9 @@ choice config UNWINDER_ORC bool "ORC unwinder" depends on X86_64 + # KMSAN doesn't support UNWINDER_ORC yet, + # see https://github.com/google/kmsan/issues/48. + depends on !KMSAN select STACK_VALIDATION ---help--- This option enables the ORC (Oops Rewind Capability) unwinder for diff --git a/crypto/Kconfig b/crypto/Kconfig index 9e524044d312..37a22711012c 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -309,11 +309,13 @@ 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 default y config CRYPTO_AEGIS128_AESNI_SSE2 tristate "AEGIS-128 AEAD algorithm (x86_64 AESNI+SSE2 implementation)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_AEAD select CRYPTO_SIMD help @@ -571,6 +573,7 @@ config CRYPTO_CRC32C config CRYPTO_CRC32C_INTEL tristate "CRC32c INTEL hardware acceleration" depends on X86 + depends on !KMSAN select CRYPTO_HASH help In Intel processor with SSE4.2 supported, the processor will @@ -611,6 +614,7 @@ config CRYPTO_CRC32 config CRYPTO_CRC32_PCLMUL tristate "CRC32 PCLMULQDQ hardware acceleration" depends on X86 + depends on !KMSAN select CRYPTO_HASH select CRC32 help @@ -649,6 +653,7 @@ config CRYPTO_CRCT10DIF config CRYPTO_CRCT10DIF_PCLMUL tristate "CRCT10DIF PCLMULQDQ hardware acceleration" depends on X86 && 64BIT && CRC_T10DIF + depends on !KMSAN select CRYPTO_HASH help For x86_64 processors with SSE4.2 and PCLMULQDQ supported, @@ -695,6 +700,7 @@ config CRYPTO_POLY1305 config CRYPTO_POLY1305_X86_64 tristate "Poly1305 authenticator algorithm (x86_64/SSE2/AVX2)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_POLY1305 help Poly1305 authenticator algorithm, RFC7539. @@ -814,6 +820,7 @@ config CRYPTO_SHA1 config CRYPTO_SHA1_SSSE3 tristate "SHA1 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_SHA1 select CRYPTO_HASH help @@ -825,6 +832,7 @@ config CRYPTO_SHA1_SSSE3 config CRYPTO_SHA256_SSSE3 tristate "SHA256 digest algorithm (SSSE3/AVX/AVX2/SHA-NI)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_SHA256 select CRYPTO_HASH help @@ -837,6 +845,7 @@ config CRYPTO_SHA256_SSSE3 config CRYPTO_SHA512_SSSE3 tristate "SHA512 digest algorithm (SSSE3/AVX/AVX2)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_SHA512 select CRYPTO_HASH help @@ -1011,6 +1020,7 @@ config CRYPTO_WP512 config CRYPTO_GHASH_CLMUL_NI_INTEL tristate "GHASH hash function (CLMUL-NI accelerated)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_CRYPTD help This is the x86_64 CLMUL-NI accelerated implementation of @@ -1064,6 +1074,7 @@ config CRYPTO_AES_TI config CRYPTO_AES_NI_INTEL tristate "AES cipher algorithms (AES-NI)" depends on X86 + depends on !KMSAN select CRYPTO_AEAD select CRYPTO_LIB_AES select CRYPTO_ALGAPI @@ -1190,6 +1201,7 @@ config CRYPTO_BLOWFISH_COMMON config CRYPTO_BLOWFISH_X86_64 tristate "Blowfish cipher algorithm (x86_64)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_BLOWFISH_COMMON help @@ -1221,6 +1233,7 @@ config CRYPTO_CAMELLIA_X86_64 tristate "Camellia cipher algorithm (x86_64)" depends on X86 && 64BIT depends on CRYPTO + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 help @@ -1238,6 +1251,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64 tristate "Camellia cipher algorithm (x86_64/AES-NI/AVX)" depends on X86 && 64BIT depends on CRYPTO + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_CAMELLIA_X86_64 select CRYPTO_GLUE_HELPER_X86 @@ -1258,6 +1272,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 tristate "Camellia cipher algorithm (x86_64/AES-NI/AVX2)" depends on X86 && 64BIT depends on CRYPTO + depends on !KMSAN select CRYPTO_CAMELLIA_AESNI_AVX_X86_64 help Camellia cipher algorithm module (x86_64/AES-NI/AVX2). @@ -1303,6 +1318,7 @@ 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 select CRYPTO_BLKCIPHER select CRYPTO_CAST5 select CRYPTO_CAST_COMMON @@ -1325,6 +1341,7 @@ 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 select CRYPTO_BLKCIPHER select CRYPTO_CAST6 select CRYPTO_CAST_COMMON @@ -1360,6 +1377,7 @@ 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 select CRYPTO_BLKCIPHER select CRYPTO_LIB_DES help @@ -1426,6 +1444,7 @@ 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 select CRYPTO_BLKCIPHER select CRYPTO_CHACHA20 help @@ -1462,6 +1481,7 @@ config CRYPTO_SERPENT config CRYPTO_SERPENT_SSE2_X86_64 tristate "Serpent cipher algorithm (x86_64/SSE2)" depends on X86 && 64BIT + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SERPENT @@ -1481,6 +1501,7 @@ config CRYPTO_SERPENT_SSE2_X86_64 config CRYPTO_SERPENT_SSE2_586 tristate "Serpent cipher algorithm (i586/SSE2)" depends on X86 && !64BIT + depends on !KMSAN select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SERPENT @@ -1500,6 +1521,7 @@ 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 select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SERPENT @@ -1520,6 +1542,7 @@ 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 select CRYPTO_SERPENT_AVX_X86_64 help Serpent cipher algorithm, by Anderson, Biham & Knudsen. @@ -1615,6 +1638,7 @@ config CRYPTO_TWOFISH_586 config CRYPTO_TWOFISH_X86_64 tristate "Twofish cipher algorithm (x86_64)" depends on (X86 || UML_X86) && 64BIT + depends on !KMSAN select CRYPTO_ALGAPI select CRYPTO_TWOFISH_COMMON help @@ -1631,6 +1655,7 @@ 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 select CRYPTO_BLKCIPHER select CRYPTO_TWOFISH_COMMON select CRYPTO_TWOFISH_X86_64 @@ -1652,6 +1677,7 @@ 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 select CRYPTO_BLKCIPHER select CRYPTO_GLUE_HELPER_X86 select CRYPTO_SIMD diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig index 71991a28a775..99585eaf4dd0 100644 --- a/drivers/gpu/drm/amd/display/Kconfig +++ b/drivers/gpu/drm/amd/display/Kconfig @@ -6,7 +6,7 @@ config DRM_AMD_DC bool "AMD DC - Enable new display engine" default y select SND_HDA_COMPONENT if SND_HDA_CORE - select DRM_AMD_DC_DCN1_0 if X86 && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS) + select DRM_AMD_DC_DCN1_0 if X86 && !(KCOV_INSTRUMENT_ALL && KCOV_ENABLE_COMPARISONS) && !KMSAN help Choose this option if you want to use the new display engine support for AMDGPU. This adds required support for Vega and diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 75c36318943d..a3f6f5d68593 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1068,6 +1068,9 @@ menu "Lock Debugging (spinlocks, mutexes, etc...)" config LOCK_DEBUGGING_SUPPORT bool depends on TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT + # KMSAN is incompatible with lockdep, + # see https://github.com/google/kmsan/issues/57. + depends on !KMSAN default y config PROVE_LOCKING -- 2.23.0.866.gb869b98d4c-goog
