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Vulnerability CVE-2022-26357
Published: 2022-04-05
| Description: |
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. |
References: |
https://xenbits.xenproject.org/xsa/advisory-399.txt
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