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CVE-2023-54264

In the Linux kernel, the following vulnerability has been resolved: fs/sysv: Null check to prevent null-ptr-deref bug sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on that lead…

Published Dec 30, 2025EPSS 0.21%

Overview

CVE-2023-54264 is a known-severity vulnerability. It was published on December 30, 2025.

Technical description

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

fs/sysv: Null check to prevent null-ptr-deref bug

sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on

that leads to the null-ptr-deref bug.

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/0a44ceba77c3267f8505dda102a59367dc24caeeRefgit.kernel.org/stable/c/1416eebaad80bdc85ad9f97f27242011b031e2a9Refgit.kernel.org/stable/c/7f740bc696d4617f8ee44565e8ac0d36278a1e91Refgit.kernel.org/stable/c/afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635Refgit.kernel.org/stable/c/baa60c66a310c50785289b0ede6fdce8ec3219c7Refgit.kernel.org/stable/c/e28f376dd8dfcc4e880ac101184132bc08703f6eRefgit.kernel.org/stable/c/e976988bc245ec3768cc0f76bed7d05488a7dd0fRefgit.kernel.org/stable/c/ea2b62f305893992156a798f665847e0663c9f41

How CyberStrike helps

Frequently asked questions

What is CVE-2023-54264?

CVE-2023-54264 is a known-severity vulnerability. It was published on December 30, 2025.

How severe is CVE-2023-54264?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2023-54264?

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-2023-54264?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-54264 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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