From: Ard Biesheuvel <ardb@kernel.org> To: linux-arm-kernel@lists.infradead.org Cc: linux-acpi@vger.kernel.org, will@kernel.org, catalin.marinas@arm.com, lorenzo.pieralisi@arm.com, sudeep.holla@arm.com, kernel-hardening@lists.openwall.com, Ard Biesheuvel <ardb@kernel.org> Subject: [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access Date: Fri, 26 Jun 2020 17:58:30 +0200 [thread overview] Message-ID: <20200626155832.2323789-1-ardb@kernel.org> (raw) v2: - do a more elaborate check on the region, against the EFI memory map v3: - split into two patches - fallback to __ioremap() for ACPI reclaim memory, in case it is not covered by the linear mapping (e.g., when booting a kdump kernel) Ard Biesheuvel (2): arm64/acpi: disallow AML memory opregions to access kernel memory arm64/acpi: disallow writeable AML opregion mapping for EFI code regions arch/arm64/include/asm/acpi.h | 15 +--- arch/arm64/kernel/acpi.c | 75 ++++++++++++++++++++ 2 files changed, 76 insertions(+), 14 deletions(-) -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Ard Biesheuvel <ardb@kernel.org> To: linux-arm-kernel@lists.infradead.org Cc: lorenzo.pieralisi@arm.com, kernel-hardening@lists.openwall.com, catalin.marinas@arm.com, linux-acpi@vger.kernel.org, sudeep.holla@arm.com, will@kernel.org, Ard Biesheuvel <ardb@kernel.org> Subject: [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access Date: Fri, 26 Jun 2020 17:58:30 +0200 [thread overview] Message-ID: <20200626155832.2323789-1-ardb@kernel.org> (raw) v2: - do a more elaborate check on the region, against the EFI memory map v3: - split into two patches - fallback to __ioremap() for ACPI reclaim memory, in case it is not covered by the linear mapping (e.g., when booting a kdump kernel) Ard Biesheuvel (2): arm64/acpi: disallow AML memory opregions to access kernel memory arm64/acpi: disallow writeable AML opregion mapping for EFI code regions arch/arm64/include/asm/acpi.h | 15 +--- arch/arm64/kernel/acpi.c | 75 ++++++++++++++++++++ 2 files changed, 76 insertions(+), 14 deletions(-) -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2020-06-26 15:58 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-06-26 15:58 Ard Biesheuvel [this message] 2020-06-26 15:58 ` [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access Ard Biesheuvel 2020-06-26 15:58 ` [PATCH v3 1/2] arm64/acpi: disallow AML memory opregions to access kernel memory Ard Biesheuvel 2020-06-26 15:58 ` Ard Biesheuvel 2020-09-28 16:02 ` Jonathan Cameron 2020-09-28 16:02 ` Jonathan Cameron 2020-09-28 16:49 ` Ard Biesheuvel 2020-09-28 16:49 ` Ard Biesheuvel 2020-09-28 16:49 ` Ard Biesheuvel 2020-09-28 17:17 ` Jonathan Cameron 2020-09-28 17:17 ` Jonathan Cameron 2020-09-29 9:29 ` Ard Biesheuvel 2020-09-29 9:29 ` Ard Biesheuvel 2020-09-29 9:29 ` Ard Biesheuvel 2020-09-30 9:27 ` Jonathan Cameron 2020-09-30 9:27 ` Jonathan Cameron 2020-09-30 17:19 ` Catalin Marinas 2020-09-30 17:19 ` Catalin Marinas 2020-06-26 15:58 ` [PATCH v3 2/2] arm64/acpi: disallow writeable AML opregion mapping for EFI code regions Ard Biesheuvel 2020-06-26 15:58 ` Ard Biesheuvel 2021-02-06 3:11 ` Shawn Guo 2021-02-06 3:11 ` Shawn Guo 2021-02-06 8:10 ` Ard Biesheuvel 2021-02-06 8:10 ` Ard Biesheuvel 2021-02-06 8:10 ` Ard Biesheuvel 2021-02-06 10:17 ` Ard Biesheuvel 2021-02-06 10:17 ` Ard Biesheuvel 2021-02-06 10:17 ` Ard Biesheuvel 2021-02-06 10:45 ` Shawn Guo 2021-02-06 10:45 ` Shawn Guo 2020-07-08 16:17 ` [PATCH v3 0/2] arm64/acpi: restrict AML opregion memory access Ard Biesheuvel 2020-07-08 16:17 ` Ard Biesheuvel 2020-07-08 16:17 ` Ard Biesheuvel 2020-07-09 8:42 ` Lorenzo Pieralisi 2020-07-09 8:42 ` Lorenzo Pieralisi 2020-07-14 19:52 ` Catalin Marinas
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