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CVE-2024-26617

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: fs/proc/task_mmu: move mmu notification mechanism inside mm lock Move mmu notification mechanism inside mm lock to prevent race…

Published Mar 11, 2024CWE-362EPSS 0.17%

Overview

CVE-2024-26617 is a high-severity vulnerability. It was published on March 11, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, 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:

fs/proc/task_mmu: move mmu notification mechanism inside mm lock

Move mmu notification mechanism inside mm lock to prevent race condition

in other components which depend on it. The notifier will invalidate

memory range. Depending upon the number of iterations, different memory

ranges would be invalidated.

The following warning would be removed by this patch:

WARNING: CPU: 0 PID: 5067 at arch/x86/kvm/../../../virt/kvm/kvm_main.c:734 kvm_mmu_notifier_change_pte+0x860/0x960 arch/x86/kvm/../../../virt/kvm/kvm_main.c:734

There is no behavioural and performance change with this patch when

there is no component registered with the mmu notifier.

[[email protected]: narrow the scope of `range', per Sean]

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/05509adf297924f51e1493aa86f9fcde1433ed80Refgit.kernel.org/stable/c/4cccb6221cae6d020270606b9e52b1678fc8b71aRefgit.kernel.org/stable/c/05509adf297924f51e1493aa86f9fcde1433ed80Refgit.kernel.org/stable/c/4cccb6221cae6d020270606b9e52b1678fc8b71a

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26617?

CVE-2024-26617 is a high-severity vulnerability. It was published on March 11, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-26617?

This vulnerability has a CVSS 3.1 base score of 7.8, 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-2024-26617?

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-2024-26617?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26617 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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