| Subject | Re: [PATCHv5 03/19] mm/ksm: Do not merge pages with different KeyIDs | From | Dave Hansen <> | Date | Wed, 18 Jul 2018 10:38:27 -0700 |
| |
On 07/17/2018 04:20 AM, Kirill A. Shutemov wrote: > Pages encrypted with different encryption keys are not allowed to be > merged by KSM. Otherwise it would cross security boundary.
Let's say I'm using plain AES (not AES-XTS). I use the same key in two keyid slots. I map a page with the first keyid and another with the other keyid.
Won't they have the same cipertext? Why shouldn't we KSM them?
|