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CVE-2024-53138

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: kTLS, Fix incorrect page refcounting The kTLS tx handling code is using a mix of get_page() and page_ref_inc() APIs…

Published Dec 4, 2024EPSS 0.55%

Overview

CVE-2024-53138 is a critical-severity vulnerability. It was published on December 4, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

net/mlx5e: kTLS, Fix incorrect page refcounting

The kTLS tx handling code is using a mix of get_page() and

page_ref_inc() APIs to increment the page reference. But on the release

path (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used.

This is an issue when using pages from large folios: the get_page()

references are stored on the folio page while the page_ref_inc()

references are stored directly in the given page. On release the folio

page will be dereferenced too many times.

This was found while doing kTLS testing with sendfile() + ZC when the

served file was read from NFS on a kernel with NFS large folios support

(commit 49b29a573da8 ("nfs: add support for large folios")).

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/2723e8b2cbd486cb96e5a61b22473f7fd62e18dfRefgit.kernel.org/stable/c/69fbd07f17b0fdaf8970bc705f5bf115c297839dRefgit.kernel.org/stable/c/93a14620b97c911489a5b008782f3d9b0c4aeff4Refgit.kernel.org/stable/c/a0ddb20a748b122ea86003485f7992fa5e84cc95Refgit.kernel.org/stable/c/c7b97f9e794d8e2bbaa50e1d6c230196fd214b5eRefgit.kernel.org/stable/c/dd6e972cc5890d91d6749bb48e3912721c4e4b25Refgit.kernel.org/stable/c/ffad2ac8c859c1c1a981fe9c4f7ff925db684a43Reflists.debian.org/debian-lts-announce/2025/01/msg00001.htmlReflists.debian.org/debian-lts-announce/2025/03/msg00002.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-53138?

CVE-2024-53138 is a critical-severity vulnerability. It was published on December 4, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-53138?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-53138?

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-2024-53138?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-53138 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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