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CVE-2023-52932

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: add cond_resched() in get_swap_pages() The softlockup still occurs in get_swap_pages() under memory pressure.

Published Mar 27, 2025CWE-667EPSS 0.20%

Overview

CVE-2023-52932 is a medium-severity vulnerability. It was published on March 27, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

mm/swapfile: add cond_resched() in get_swap_pages()

The softlockup still occurs in get_swap_pages() under memory pressure. 64

CPU cores, 64GB memory, and 28 zram devices, the disksize of each zram

device is 50MB with same priority as si. Use the stress-ng tool to

increase memory pressure, causing the system to oom frequently.

The plist_for_each_entry_safe() loops in get_swap_pages() could reach tens

of thousands of times to find available space (extreme case:

cond_resched() is not called in scan_swap_map_slots()). Let's add

cond_resched() into get_swap_pages() when failed to find available space

to avoid softlockup.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/29f0349c5c76b627fe06b87d4b13fa03a6ce8e64Refgit.kernel.org/stable/c/30187be29052bba9203b0ae2bdd815e0bc2faaabRefgit.kernel.org/stable/c/387217b97e99699c34e6d95ce2b91b327fcd853eRefgit.kernel.org/stable/c/49178d4d61e78aed8c837dfeea8a450700f196e2Refgit.kernel.org/stable/c/5dbe1ebd56470d03b78fc31491a9e4d433106ef2Refgit.kernel.org/stable/c/7717fc1a12f88701573f9ed897cc4f6699c661e3Refgit.kernel.org/stable/c/d49c85a1913385eed46dd16a25ad0928253767f0

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52932?

CVE-2023-52932 is a medium-severity vulnerability. It was published on March 27, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52932?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52932?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-52932?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52932 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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