CVE-2022-50391

MEDIUM EPSS 4.0%
Published Sep 18, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 18, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥5.17  –  <6.0.17
linuxlinux_kernel*≥6.1  –  <6.1.3

References 3

  • git.kernel.org https://git.kernel.org/stable/c/0ce4cc6d269ddc448a825955b495f662f5d9e153
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0ce4cc6d269ddc448a825955b495f662f5d9e153
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33
    Patch