Description
An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen all in one go. In this handling an error path could be taken in different situations, with or without a particular lock held. This error path wrongly releases the lock even when it is not currently held.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | — |
| xen | xen | >= 4.4, < 4.16 |
References
- https://xenbits.xenproject.org/xsa/advisory-458.htmlPatch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2024/07/16/3Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-458.htmlPatch, Vendor Advisory
- https://xenbits.xenproject.org/xsa/advisory-458.htmlPatch, Vendor Advisory
Timeline
- Published
- Jul 18, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed