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CVE-2024-35843

8.8 · HIGH
Published May 17, 2024 linux CWE-416 EPSS 0.22% (12th pctl)

Overview

CVE-2024-35843 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. 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:

iommu/vt-d: Use device rbtree in iopf reporting path

The existing I/O page fault handler currently locates the PCI device by

calling pci_get_domain_bus_and_slot(). This function searches the list

of all PCI devices until the desired device is found. To improve lookup

efficiency, replace it with device_rbtree_find() to search the device

within the probed device rbtree.

The I/O page fault is initiated by the device, which does not have any

synchronization mechanism with the software to ensure that the device

stays in the probed device tree. Theoretically, a device could be released

by the IOMMU subsystem after device_rbtree_find() and before

iopf_get_dev_fault_param(), which would cause a use-after-free problem.

Add a mutex to synchronize the I/O page fault reporting path and the IOMMU

release device path. This lock doesn't introduce any performance overhead,

as the conflict between I/O page fault reporting and devic

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 >= 0, < 6.8.2 Affected

Frequently Asked Questions

What is CVE-2024-35843?

CVE-2024-35843 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-35843?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-35843?

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-2024-35843?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-35843 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.