Release Date: | 2024-11-08 |
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.
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 |
Platform | Errata | Release Date |
Oracle Linux version 8 (kernel) | ELSA-2024-10943 | 2024-12-11 |
Oracle Linux version 8 (kernel-uek) | ELSA-2024-12887 | 2024-12-18 |
Oracle Linux version 9 (kernel) | ELSA-2024-11486 | 2025-01-06 |
Oracle Linux version 9 (kernel-uek) | ELSA-2024-12887 | 2024-12-18 |
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