CVEvulnerability
CVE-2022-33748
5.6 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-10-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.6 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-755
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.
Affected configurations
• xen xen (>= 4.0)
• fedoraproject fedora 35
• fedoraproject fedora 36
• fedoraproject fedora 37
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-755 Improper Handling of Exceptional Conditions weakness
References
- http://www.openwall.com/lists/oss-security/2022/10/11/2 Mailing List, Mitigation, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-411.html Mitigation, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-411.txt Mitigation, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2022/10/11/2 Mailing List, Mitigation, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-411.html Mitigation, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-411.txt Mitigation, Patch, Vendor Advisory