CVE-2024-50192

CVE Details

Release Date:2024-11-08

Description


In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE Kunkun Jiang reported that there is a small window of opportunity for userspace to force a change of affinity for a VPE while the VPE has already been unmapped, but the corresponding doorbell interrupt still visible in /proc/irq/. Plug the race by checking the value of vmapp_count, which tracks whether the VPE is mapped ot not, and returning an error in this case. This involves making vmapp_count common to both GICv4.1 and its v4.0 ancestor.

See more information about CVE-2024-50192 from MITRE CVE dictionary and NIST NVD


NOTE: The following CVSS metrics and score provided are preliminary and subject to review.


CVSS v3 metrics

Base Score: 5.5
Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Attack Vector: Local
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 8 (kernel)ELSA-2024-109432024-12-11
Oracle Linux version 8 (kernel-uek)ELSA-2024-128872024-12-18
Oracle Linux version 9 (kernel)ELSA-2024-114862025-01-06
Oracle Linux version 9 (kernel-uek)ELSA-2024-128872024-12-18


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