From: Andrey Konovalov <andreyknvl@google.com> To: Andrew Morton <akpm@linux-foundation.org> Cc: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Dmitry Vyukov <dvyukov@google.com>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Alexander Potapenko <glider@google.com>, Marco Elver <elver@google.com>, Evgenii Stepanov <eugenis@google.com>, Branislav Rankov <Branislav.Rankov@arm.com>, Kevin Brodsky <kevin.brodsky@arm.com>, kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrey Konovalov <andreyknvl@google.com> Subject: [PATCH mm v10 22/42] kasan, arm64: don't allow SW_TAGS with ARM64_MTE Date: Fri, 13 Nov 2020 23:15:50 +0100 [thread overview] Message-ID: <c11b96789e1717583a63e10acde14d44260acdff.1605305705.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1605305705.git.andreyknvl@google.com> Software tag-based KASAN provides its own tag checking machinery that can conflict with MTE. Don't allow enabling software tag-based KASAN when MTE is enabled. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Alexander Potapenko <glider@google.com> --- Change-Id: Icd29bd0c6b1d3d7a0ee3d50c20490f404d34fc97 --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 2f0dd5bde83b..c999da4f2bdd 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,7 +135,7 @@ config ARM64 select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) - select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN + select HAVE_ARCH_KASAN_SW_TAGS if (HAVE_ARCH_KASAN && !ARM64_MTE) select HAVE_ARCH_KFENCE select HAVE_ARCH_KGDB select HAVE_ARCH_MMAP_RND_BITS -- 2.29.2.299.gdc1121823c-goog
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com> To: Andrew Morton <akpm@linux-foundation.org> Cc: linux-arm-kernel@lists.infradead.org, Marco Elver <elver@google.com>, Catalin Marinas <catalin.marinas@arm.com>, Kevin Brodsky <kevin.brodsky@arm.com>, Will Deacon <will.deacon@arm.com>, Branislav Rankov <Branislav.Rankov@arm.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko <glider@google.com>, Evgenii Stepanov <eugenis@google.com>, Andrey Konovalov <andreyknvl@google.com>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Dmitry Vyukov <dvyukov@google.com> Subject: [PATCH mm v10 22/42] kasan, arm64: don't allow SW_TAGS with ARM64_MTE Date: Fri, 13 Nov 2020 23:15:50 +0100 [thread overview] Message-ID: <c11b96789e1717583a63e10acde14d44260acdff.1605305705.git.andreyknvl@google.com> (raw) In-Reply-To: <cover.1605305705.git.andreyknvl@google.com> Software tag-based KASAN provides its own tag checking machinery that can conflict with MTE. Don't allow enabling software tag-based KASAN when MTE is enabled. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Alexander Potapenko <glider@google.com> --- Change-Id: Icd29bd0c6b1d3d7a0ee3d50c20490f404d34fc97 --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 2f0dd5bde83b..c999da4f2bdd 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -135,7 +135,7 @@ config ARM64 select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48) - select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN + select HAVE_ARCH_KASAN_SW_TAGS if (HAVE_ARCH_KASAN && !ARM64_MTE) select HAVE_ARCH_KFENCE select HAVE_ARCH_KGDB select HAVE_ARCH_MMAP_RND_BITS -- 2.29.2.299.gdc1121823c-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-11-13 22:17 UTC|newest] Thread overview: 155+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-13 22:15 [PATCH mm v10 00/42] kasan: add hardware tag-based mode for arm64 Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 01/42] kasan: drop unnecessary GPL text from comment headers Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 02/42] kasan: KASAN_VMALLOC depends on KASAN_GENERIC Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 03/42] kasan: group vmalloc code Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 04/42] kasan: shadow declarations only for software modes Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 05/42] kasan: rename (un)poison_shadow to (un)poison_range Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-18 15:30 ` Alexander Potapenko 2020-11-18 15:30 ` Alexander Potapenko 2020-11-18 15:30 ` Alexander Potapenko 2020-11-13 22:15 ` [PATCH mm v10 06/42] kasan: rename KASAN_SHADOW_* to KASAN_GRANULE_* Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 07/42] kasan: only build init.c for software modes Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 08/42] kasan: split out shadow.c from common.c Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 09/42] kasan: define KASAN_MEMORY_PER_SHADOW_PAGE Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-18 15:36 ` Alexander Potapenko 2020-11-18 15:36 ` Alexander Potapenko 2020-11-18 15:36 ` Alexander Potapenko 2020-11-13 22:15 ` [PATCH mm v10 10/42] kasan: rename report and tags files Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 11/42] kasan: don't duplicate config dependencies Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 12/42] kasan: hide invalid free check implementation Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 13/42] kasan: decode stack frame only with KASAN_STACK_ENABLE Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 14/42] kasan, arm64: only init shadow for software modes Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 15/42] kasan, arm64: only use kasan_depth " Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 16/42] kasan, arm64: move initialization message Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 17/42] kasan, arm64: rename kasan_init_tags and mark as __init Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 18/42] kasan: rename addr_has_shadow to addr_has_metadata Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 19/42] kasan: rename print_shadow_for_address to print_memory_metadata Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 20/42] kasan: rename SHADOW layout macros to META Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 21/42] kasan: separate metadata_fetch_row for each mode Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov [this message] 2020-11-13 22:15 ` [PATCH mm v10 22/42] kasan, arm64: don't allow SW_TAGS with ARM64_MTE Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 23/42] kasan: introduce CONFIG_KASAN_HW_TAGS Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-18 16:04 ` Alexander Potapenko 2020-11-18 16:04 ` Alexander Potapenko 2020-11-18 16:04 ` Alexander Potapenko 2020-11-13 22:15 ` [PATCH mm v10 24/42] arm64: Enable armv8.5-a asm-arch option Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-18 15:48 ` Alexander Potapenko 2020-11-18 15:48 ` Alexander Potapenko 2020-11-18 15:48 ` Alexander Potapenko 2020-11-13 22:15 ` [PATCH mm v10 25/42] arm64: mte: Add in-kernel MTE helpers Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 26/42] arm64: mte: Reset the page tag in page->flags Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-14 12:43 ` Catalin Marinas 2020-11-14 12:43 ` Catalin Marinas 2020-11-13 22:15 ` [PATCH mm v10 27/42] arm64: mte: Add in-kernel tag fault handler Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 28/42] arm64: kasan: Allow enabling in-kernel MTE Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-14 12:47 ` Catalin Marinas 2020-11-14 12:47 ` Catalin Marinas 2020-11-13 22:15 ` [PATCH mm v10 29/42] arm64: mte: Convert gcr_user into an exclude mask Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 30/42] arm64: mte: Switch GCR_EL1 in kernel entry and exit Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` [PATCH mm v10 31/42] kasan, mm: untag page address in free_reserved_area Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-13 22:15 ` Andrey Konovalov 2020-11-18 16:07 ` Alexander Potapenko 2020-11-18 16:07 ` Alexander Potapenko 2020-11-18 16:07 ` Alexander Potapenko 2020-11-13 22:16 ` [PATCH mm v10 32/42] arm64: kasan: Align allocations for HW_TAGS Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 33/42] arm64: kasan: Add arch layer for memory tagging helpers Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 34/42] kasan: define KASAN_GRANULE_SIZE for HW_TAGS Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 35/42] kasan, x86, s390: update undef CONFIG_KASAN Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 36/42] kasan, arm64: expand CONFIG_KASAN checks Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 37/42] kasan, arm64: implement HW_TAGS runtime Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 38/42] kasan, arm64: print report from tag fault handler Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 39/42] kasan, mm: reset tags when accessing metadata Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 40/42] kasan, arm64: enable CONFIG_KASAN_HW_TAGS Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` [PATCH mm v10 41/42] kasan: add documentation for hardware tag-based mode Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-18 15:43 ` Alexander Potapenko 2020-11-18 15:43 ` Alexander Potapenko 2020-11-18 15:43 ` Alexander Potapenko 2020-11-13 22:16 ` [PATCH mm v10 42/42] kselftest/arm64: Check GCR_EL1 after context switch Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 22:16 ` Andrey Konovalov 2020-11-13 23:35 ` [PATCH mm v10 00/42] kasan: add hardware tag-based mode for arm64 Andrew Morton 2020-11-13 23:35 ` Andrew Morton 2020-11-16 14:48 ` Vincenzo Frascino 2020-11-16 14:48 ` Vincenzo Frascino
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