CVEvulnerability

CVE-2024-31143

7.5 HIGH Published 2024-07-18 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-07-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-832

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.

Affected configurations

• xen xen (>= 4.4.0)

Related

Weakness · CWE (1)

  • CWE-832 Unlock of a Resource that is not Locked weakness

References