CVE-2023-52662 is a vulnerability identified in the Linux kernel, specifically within the drm/vmwgfx driver component. This driver is responsible for managing graphics resources for VMware virtual GPU devices. The vulnerability is a memory leak occurring in the function vmw_gmrid_man_get_node. The root cause is a failure to properly free allocated resources when the ida_alloc_max function fails. Specifically, resources allocated by kmalloc and initialized by ttm_resource_init are not released, leading to a memory leak. While this does not directly cause a crash or allow code execution, the leak can degrade system performance over time, especially in environments with frequent allocation failures or high graphics resource usage. The vulnerability affects multiple versions of the Linux kernel as indicated by the repeated commit hashes, suggesting it is present in several recent kernel builds. No known exploits are currently reported in the wild, and no CVSS score has been assigned yet. The issue was reserved in early March 2024 and published in mid-May 2024. The fix involves ensuring that all allocated resources are properly freed upon allocation failure, preventing the leak. This vulnerability is primarily a resource management flaw within the kernel's graphics subsystem for VMware virtualized environments.

For European organizations, the impact of CVE-2023-52662 depends largely on their use of Linux systems running VMware virtual GPU drivers. Organizations heavily reliant on virtualized Linux environments with graphical workloads—such as cloud service providers, research institutions, and enterprises using VMware for desktop or application virtualization—may experience degraded system performance or stability over time due to memory leaks. This could lead to increased operational costs, potential service interruptions, or reduced availability of critical applications. Although the vulnerability does not currently allow privilege escalation or remote code execution, persistent memory leaks can cause denial of service conditions if system resources are exhausted. This is particularly relevant for large-scale deployments or environments with constrained resources. Since no active exploits are known, the immediate risk is moderate, but the vulnerability should be addressed promptly to avoid potential future exploitation or operational issues.

European organizations should prioritize updating their Linux kernel versions to include the patch that fixes CVE-2023-52662. Specifically, they should track kernel updates from their Linux distribution vendors or VMware that address this memory leak in the drm/vmwgfx driver. For environments where immediate patching is not feasible, monitoring system memory usage and resource allocation related to VMware virtual GPU devices can help detect abnormal leaks early. Administrators should also review and optimize virtual GPU workload patterns to minimize allocation failures. Additionally, implementing resource limits and alerts on virtual machines can prevent system-wide resource exhaustion. Organizations should maintain an inventory of Linux systems running VMware virtual GPU drivers to ensure all affected systems are identified and remediated. Finally, engaging with VMware and Linux vendor support channels can provide guidance on best practices and updates.