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.
Published 2022-10-11 13:15:10
Updated 2024-02-04 08:15:12
Source Xen Project
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-33748

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 12 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2022-33748

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
5.6
MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
1.1
4.0
NIST

CWE ids for CVE-2022-33748

References for CVE-2022-33748

Products affected by CVE-2022-33748

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