VULNERABILITY INTELLIGENCE
CVE-2022-33748
CVSS score5.6 MEDIUM
EPSS probability0.27%
CISA KEVNot currently listed
Published2022-10-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Description
lock order inversion in transitive grant copy handling As part of XSA-226 a missing cleanup call was inserted on an error handling path. While doing so, locking requirements were not paid attention to. As a result two cooperating guests granting each other transitive grants can cause locks to be acquired nested within one another, but in respectively opposite order. With suitable timing between the involved grant copy operations this may result in the locking up of a CPU.
Weakness classification
- nvd@nist.gov: CWE-755
Primary references
- security@xen.org — Mailing List, Mitigation, Patch, Third Party Advisory
- security@xen.org — Mitigation, Patch, Vendor Advisory
- security@xen.org
- security@xen.org
- security@xen.org
- security@xen.org
- security@xen.org — Third Party Advisory
- security@xen.org — Mitigation, Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Mitigation, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108