[PATCH v5 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC

Linus Walleij linus.walleij at linaro.org
Wed Apr 27 06:01:48 PDT 2022


On Wed, Apr 27, 2022 at 11:59 AM Lecopzer Chen
<lecopzer.chen at mediatek.com> wrote:

> Since the framework of KASAN_VMALLOC is well-developed,
> It's easy to support for ARM that simply not to map shadow of VMALLOC
> area on kasan_init.
>
> Since the virtual address of vmalloc for Arm is also between
> MODULE_VADDR and 0x100000000 (ZONE_HIGHMEM), which means the shadow
> address has already included between KASAN_SHADOW_START and
> KASAN_SHADOW_END.
> Thus we need to change nothing for memory map of Arm.
>
> This can fix ARM_MODULE_PLTS with KASan, support KASan for higmem
> and support CONFIG_VMAP_STACK with KASan.

Excellent Lecopzer,

can you put these patches into Russell's patch tracker so he can pick them?
https://www.armlinux.org.uk/developer/patches/

Yours,
Linus Walleij



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