CVEvulnerability

CVE-2024-50192

4.7 MEDIUM Published 2024-11-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2024-11-08
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Affected configurations

• linux linux kernel (>= 5.6 < 5.10.228) • linux linux kernel (>= 5.11 < 5.15.169) • linux linux kernel (>= 5.16 < 6.1.114) • linux linux kernel (>= 6.2 < 6.6.58) • linux linux kernel (>= 6.7 < 6.11.5) • linux linux kernel 6.12

References