Date: Tue, 6 Nov 2018 22:44:02 +0100 From: Ard Biesheuvel <ard.biesheuvel@...aro.org> To: linux-arm-kernel@...ts.infradead.org Cc: keescook@...omium.org, kernel-hardening@...ts.openwall.com, labbott@...hat.com, will.deacon@....com, jannh@...gle.com, mark.rutland@....com, james.morse@....com, catalin.marinas@....com, Ard Biesheuvel <ard.biesheuvel@...aro.org> Subject: [PATCH v3 0/2]get rid of writable linear aliases of read-only vmalloc mappings This is a followup to my patch 'arm64/mm: unmap the linear alias of module allocations'. This version changes the approach to match what x86 does, i.e., to deal with the linear alias at a more fundamental level, in the set_memory_ro/rw routines. Ard Biesheuvel (2): arm64: mm: purge lazily unmapped vm regions before changing permissions arm64: mm: apply r/o permissions of VM areas to its linear alias as well arch/arm64/Kconfig | 14 ++++++++ arch/arm64/include/asm/mmu_context.h | 2 ++ arch/arm64/mm/mmu.c | 2 +- arch/arm64/mm/pageattr.c | 36 +++++++++++++++++--- 4 files changed, 48 insertions(+), 6 deletions(-) -- 2.19.1
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