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CVE-2024-56690

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY Since commit 8f4f68e788c3 ("crypto: pcrypt…

Published Dec 28, 2024EPSS 0.19%

Overview

CVE-2024-56690 is a medium-severity vulnerability. It was published on December 28, 2024 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:

crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY

Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for

PADATA_RESET"), the pcrypt encryption and decryption operations return

-EAGAIN when the CPU goes online or offline. In alg_test(), a WARN is

generated when pcrypt_aead_decrypt() or pcrypt_aead_encrypt() returns

-EAGAIN, the unnecessary panic will occur when panic_on_warn set 1.

Fix this issue by calling crypto layer directly without parallelization

in that case.

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/5edae7a9a35606017ee6e05911c290acee9fee5aRefgit.kernel.org/stable/c/662f2f13e66d3883b9238b0b96b17886179e60e2Refgit.kernel.org/stable/c/7ddab756f2de5b7b43c122ebebdf37f400fb2b6fRefgit.kernel.org/stable/c/92834692a539b5b7f409e467a14667d64713b732Refgit.kernel.org/stable/c/96001f52ae8c70e2c736d3e1e5dc53d5b521e5caRefgit.kernel.org/stable/c/a8e0074ffb38c9a5964a221bb998034d016c93a2Refgit.kernel.org/stable/c/a92ccd3618e42333ac6f150ecdac14dca298bc7aRefgit.kernel.org/stable/c/dd8bf8eb5beba1e7c3b11a9a5a58ccbf345a69e6Refgit.kernel.org/stable/c/fca8aed12218f96b38e374ff264d78ea1fbd23ccReflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56690?

CVE-2024-56690 is a medium-severity vulnerability. It was published on December 28, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56690?

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-2024-56690?

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-2024-56690?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56690 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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