Messages in this thread | | | Date | Wed, 09 Jul 2014 13:26:16 -0700 | From | Dave Hansen <> | Subject | Re: [RFC/PATCH RESEND -next 01/21] Add kernel address sanitizer infrastructure. |
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On 07/09/2014 04:29 AM, Andrey Ryabinin wrote: > Address sanitizer dedicates 1/8 of the low memory to the shadow memory and uses direct > mapping with a scale and offset to translate a memory address to its corresponding > shadow address. > > Here is function to translate address to corresponding shadow address: > > unsigned long kasan_mem_to_shadow(unsigned long addr) > { > return ((addr - PAGE_OFFSET) >> KASAN_SHADOW_SCALE_SHIFT) > + kasan_shadow_start; > }
How does this interact with vmalloc() addresses or those from a kmap()?
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