xen: race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide
CVE-2022-26357 is fixed in xen on 1 platform, first by DEBIAN-CVE-2022-26357, released April 5, 2022. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| xen · Debian 12.15 (bookworm) | 4.16.1-1 | DEBIAN-CVE-2022-26357 | Apr 5, 2022 |
| xen · Debian 13.5 (trixie) | 4.16.1-1 | DEBIAN-CVE-2022-26357 | Apr 5, 2022 |
| xen · Debian 14 | 4.16.1-1 | DEBIAN-CVE-2022-26357 | Apr 5, 2022 |
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