race in VT-d domain ID cleanup Xen... CVE-2022-26357

6.2 AV AC AU C I A
发布: 2022-04-05
修订: 2024-11-21

race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.

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