[PATCH v6 0/6] KASAN for arm64
ryabinin.a.a at gmail.com
Thu Oct 8 04:23:20 PDT 2015
On 10/08/2015 02:11 PM, Mark Rutland wrote:
> On Thu, Oct 08, 2015 at 01:36:09PM +0300, Andrey Ryabinin wrote:
>> 2015-10-07 13:04 GMT+03:00 Catalin Marinas <catalin.marinas at arm.com>:
>>> On Thu, Sep 17, 2015 at 12:38:06PM +0300, Andrey Ryabinin wrote:
>>>> As usual patches available in git
>>>> git://github.com/aryabinin/linux.git kasan/arm64v6
>>>> Changes since v5:
>>>> - Rebase on top of 4.3-rc1
>>>> - Fixed EFI boot.
>>>> - Updated Doc/features/KASAN.
>>> I tried to merge these patches (apart from the x86 one which is already
>>> merged) but it still doesn't boot on Juno as an EFI application.
>> 4.3-rc1 was ok and 4.3-rc4 is not. Break caused by 0ce3cc008ec04
>> ("arm64/efi: Fix boot crash by not padding between EFI_MEMORY_RUNTIME
>> It introduced sort() call in efi_get_virtmap().
>> sort() is generic kernel function and it's instrumented, so we crash
>> when KASAN tries to access shadow in sort().
> I believe this is solved by Ard's stub isolation series [1,2], which
> will build a stub-specific copy of sort() and various other functions
> (see the arm-deps in ).
> So long as the stub is not built with ASAN, that should work.
Thanks, this should help, as we already build the stub without ASAN instrumentation.
>  http://lists.infradead.org/pipermail/linux-arm-kernel/2015-October/373807.html
>  http://lists.infradead.org/pipermail/linux-arm-kernel/2015-October/373808.html
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