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CVE-2023-52760

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix slab-use-after-free in gfs2_qd_dealloc In gfs2_put_super(), whether withdrawn or not, the quota should be cleaned up…

Published May 21, 2024CWE-416EPSS 0.27%

Overview

CVE-2023-52760 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

gfs2: Fix slab-use-after-free in gfs2_qd_dealloc

In gfs2_put_super(), whether withdrawn or not, the quota should

be cleaned up by gfs2_quota_cleanup().

Otherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu

callback) has run for all gfs2_quota_data objects, resulting in

use-after-free.

Also, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called

by gfs2_make_fs_ro(), so in gfs2_put_super(), after calling

gfs2_make_fs_ro(), there is no need to call them again.

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/08a28272faa750d4357ea2cb48d2baefd778ea81Refgit.kernel.org/stable/c/bdcb8aa434c6d36b5c215d02a9ef07551be25a37Refgit.kernel.org/stable/c/08a28272faa750d4357ea2cb48d2baefd778ea81Refgit.kernel.org/stable/c/7ad4e0a4f61c57c3ca291ee010a9d677d0199fbaRefgit.kernel.org/stable/c/bdcb8aa434c6d36b5c215d02a9ef07551be25a37Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52760?

CVE-2023-52760 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52760?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52760?

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-2023-52760?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52760 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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