Messages in this thread | | | Date | Thu, 4 Jan 2018 07:39:39 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH 02/11] arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry |
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On Thu, Jan 04, 2018 at 03:08:26PM +0000, Will Deacon wrote: > Although CONFIG_UNMAP_KERNEL_AT_EL0 does make KASLR more robust, it's > actually more useful as a mitigation against speculation attacks that > can leak arbitrary kernel data to userspace through speculation. > > Reword the Kconfig help message to reflect this, and make the option > depend on EXPERT so that it is on by default for the majority of users. > > Signed-off-by: Will Deacon <will.deacon@arm.com>
Why is this not reusing the PAGE_TABLE_ISOLATION setting in security/Kconfig ?
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