CVE-2022-50391
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-18

Last updated on: 2025-12-11

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: fix memory leak in set_mempolicy_home_node system call 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(). This allows arbitrary users to leak kernel memory.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-09-18
Last Modified
2025-12-11
Generated
2026-06-16
AI Q&A
2025-09-18
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50391
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.17 (inc) to 6.0.17 (exc)
linux linux_kernel From 6.1 (inc) to 6.1.3 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Impact Analysis

The vulnerability allows arbitrary users to leak kernel memory, which could potentially be exploited to gather sensitive information from the kernel memory space. This could lead to increased risk of information disclosure or other security issues related to kernel memory management.

Executive Summary

This vulnerability in the Linux kernel involves a memory leak in the set_mempolicy_home_node system call. Specifically, when the system encounters a virtual memory area (vma) with a policy other than MPOL_BIND or MPOL_PREFERRED_MANY, it returns an error but fails to release the allocated memory policy object, leading to a leak of kernel memory. This flaw allows arbitrary users to cause kernel memory to be leaked.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2022-50391. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart