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CVE-2024-26814

5.5 · MEDIUM
Published Apr 5, 2024 linux CWE-476 EPSS 0.22% (13th pctl)

Overview

CVE-2024-26814 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 5, 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:

vfio/fsl-mc: Block calling interrupt handler without trigger

The eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is

initially NULL and may become NULL if the user sets the trigger

eventfd to -1. The interrupt handler itself is guaranteed that

trigger is always valid between request_irq() and free_irq(), but

the loopback testing mechanisms to invoke the handler function

need to test the trigger. The triggering and setting ioctl paths

both make use of igate and are therefore mutually exclusive.

The vfio-fsl-mc driver does not make use of irqfds, nor does it

support any sort of masking operations, therefore unlike vfio-pci

and vfio-platform, the flow can remain essentially unchanged.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 5.10, < 6.1.84 Affected

References

Ref git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417 Ref git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d Ref git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9 Ref git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012 Ref git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede Ref git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d Ref git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267 Ref git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417 Ref git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d Ref git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9

Frequently Asked Questions

What is CVE-2024-26814?

CVE-2024-26814 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 5, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26814?

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-2024-26814?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2024-26814?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26814 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

Autonomous Discovery

AI agents map your attack surface to find vulnerabilities like this one.
Continuous Pentesting

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Code Review

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HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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