CVE-2024-36926

5.5 · MEDIUM

Published May 30, 2024 linux CWE-476 EPSS 0.24% (15th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-36926 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 30, 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:

powerpc/pseries/iommu: LPAR panics during boot up with a frozen PE

At the time of LPAR boot up, partition firmware provides Open Firmware

property ibm,dma-window for the PE. This property is provided on the PCI

bus the PE is attached to.

There are execptions where the partition firmware might not provide this

property for the PE at the time of LPAR boot up. One of the scenario is

where the firmware has frozen the PE due to some error condition. This

PE is frozen for 24 hours or unless the whole system is reinitialized.

Within this time frame, if the LPAR is booted, the frozen PE will be

presented to the LPAR but ibm,dma-window property could be missing.

Today, under these circumstances, the LPAR oopses with NULL pointer

dereference, when configuring the PCI bus the PE is attached to.

BUG: Kernel NULL pointer dereference on read at 0x000000c8

Faulting instruction address: 0xc0000000001024c0

Oops: Kernel acce

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	>= 6.0, < 6.1.91	Affected

References

Frequently Asked Questions

What is CVE-2024-36926?

CVE-2024-36926 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-36926?

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-2024-36926?

How can CyberStrike help with CVE-2024-36926?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-36926 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

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HackBrowser

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

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