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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: XEN

Published: 2022-10-11T00:00:00

Updated: 2024-08-03T08:09:22.688Z

Reserved: 2022-06-15T00:00:00

Link: CVE-2022-33748

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-10-11T13:15:10.147

Modified: 2024-11-21T07:08:27.827

Link: CVE-2022-33748

cve-icon Redhat

No data.