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    SubjectRe: [RFC/PATCH RESEND -next 01/21] Add kernel address sanitizer infrastructure.
    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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