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Vulnerability DatabaseCVE-2022-50391
CVE-2022-50391:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2022-50391 is a vulnerability in the Linux kernel related to a memory leak in the set_mempolicy_home_node system call. The vulnerability was published on September 18, 2025. When encountering any vma in the range with policy other than MPOL_BIND or MPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on the policy just allocated with mpol_dup() (NVD).
Technical details
The vulnerability occurs in the Linux kernel's memory policy handling mechanism. Specifically, when the set_mempolicy_home_node system call encounters virtual memory areas (vma) with policies other than MPOL_BIND or MPOL_PREFERRED_MANY, it fails to properly release allocated memory by not calling mpol_put on the policy that was allocated using mpol_dup(). This technical flaw results in a memory leak condition (Ubuntu).
Impact
This vulnerability allows arbitrary users to leak kernel memory, which could potentially lead to resource exhaustion and system performance degradation over time (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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