CVE-2024-58086 is a vulnerability identified in the Linux kernel specifically within the Direct Rendering Manager (DRM) subsystem for the V3D driver, which is used primarily for managing graphics on Broadcom VideoCore IV GPUs. The issue arises from improper handling of the active performance monitor (perfmon) during its destruction phase. In the affected Linux kernel versions, when the active perfmon object (v3d->active_perfmon) is being destroyed, it is not properly stopped beforehand. This results in the pointer to the active perfmon becoming stale, which can lead to undefined behavior and potential system instability. The flaw is a logic error in resource management within the kernel's DRM driver code. The patch that resolves this vulnerability ensures that the active perfmon is explicitly stopped before destruction, preventing the stale pointer scenario and aligning with previously introduced behavior in related commits. Although the vulnerability does not appear to have any known exploits in the wild at the time of publication, the underlying issue could cause kernel crashes or unpredictable system behavior, which may be leveraged in denial-of-service attacks or potentially as a stepping stone for privilege escalation if combined with other vulnerabilities. The affected versions are identified by specific commit hashes, indicating this is a recent and narrowly scoped vulnerability in the Linux kernel source code. No CVSS score has been assigned yet, and no direct evidence of exploitation exists, but the vulnerability impacts kernel stability and reliability in systems using the V3D DRM driver.

For European organizations, the impact of CVE-2024-58086 primarily concerns systems running Linux kernels with the affected V3D DRM driver, which is common in embedded devices, IoT, and certain ARM-based platforms using Broadcom VideoCore IV GPUs. Organizations relying on such hardware for critical infrastructure, industrial control systems, or embedded applications may experience system instability or crashes if the vulnerability is triggered. This could lead to denial of service conditions, disrupting business operations or service availability. While the vulnerability does not directly expose data confidentiality or integrity risks, the resulting instability could be exploited in targeted attacks to disrupt services or as part of a multi-stage attack chain. European sectors with significant deployments of embedded Linux systems, such as manufacturing, automotive, telecommunications, and public sector IoT deployments, could be affected. The lack of known exploits reduces immediate risk, but the potential for system crashes in production environments necessitates timely patching to maintain operational continuity and security posture.

To mitigate CVE-2024-58086, European organizations should: 1) Identify and inventory all Linux systems running kernels with the V3D DRM driver, especially those using Broadcom VideoCore IV GPUs. 2) Apply the official Linux kernel patches that address this vulnerability as soon as they become available from trusted sources or Linux distributions. 3) For embedded or IoT devices where kernel updates are challenging, coordinate with device vendors to obtain firmware updates that include the fix. 4) Implement monitoring for kernel stability and logs related to DRM or perfmon errors to detect potential exploitation attempts or system instability early. 5) Employ strict access controls and limit user privileges on affected systems to reduce the risk of exploitation. 6) Test patches in staging environments to ensure compatibility and stability before deployment in production. 7) Maintain up-to-date backups and incident response plans to quickly recover from any denial-of-service incidents caused by this vulnerability.