From mboxrd@z Thu Jan 1 00:00:00 1970 From: ard.biesheuvel@linaro.org (Ard Biesheuvel) Date: Tue, 6 Nov 2018 22:44:02 +0100 Subject: [PATCH v3 0/2]get rid of writable linear aliases of read-only vmalloc mappings Message-ID: <20181106214404.2497-1-ard.biesheuvel@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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