CVE-2024-31143
double unlock in x86 guest IRQ handling
- State
- Published
- Severity
- 7.5 High
- Published
- Jul 18, 2024
- Updated
- Apr 26, 2025
- Reserved
- Mar 28, 2024
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-832 Unlock of a Resource that is not Locked
Affected Products
| Product | Versions |
|---|---|
XenXen |
|
References
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