CVE-2023-54215
Memory Leak in Linux virtio-vdpa cpumask Allocation Fixed
Publication date: 2025-12-30
Last updated on: 2025-12-30
Assigner: kernel.org
Description
Description
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a memory leak in the Linux kernel's virtio-vdpa component. Specifically, the cpumask allocated by the function create_affinity_masks() was not freed properly in the function virtio_vdpa_find_vqs(), leading to a memory leak. The issue has been fixed by ensuring the cpumask is freed before the function returns.
How can this vulnerability impact me? :
The memory leak caused by this vulnerability could lead to increased memory usage over time, potentially degrading system performance or causing resource exhaustion in environments using virtio-vdpa in the Linux kernel.