CVE-2022-33748
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | xen |
| Product | xen |
| Published | Oct 11, 2022 |
| Last Updated | Aug 3, 2024 |
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Affected Versions
Xen / xen
All versions affected References
xenbits.xenproject.org: https://xenbits.xenproject.org/xsa/advisory-411.txt xenbits.xen.org: http://xenbits.xen.org/xsa/advisory-411.html openwall.com: http://www.openwall.com/lists/oss-security/2022/10/11/2 lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ debian.org: https://www.debian.org/security/2022/dsa-5272 lists.fedoraproject.org: 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/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ security.gentoo.org: https://security.gentoo.org/glsa/202402-07
Credits
{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Jan Beulich of SUSE.'}]}}}