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CVE-2024-35847

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Prevent double free on error The error handling path in its_vpe_irq_domain_alloc() causes a double free whe…

Published May 17, 2024CWE-415EPSS 0.25%

Overview

CVE-2024-35847 is a high-severity vulnerability. It was published on May 17, 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:

irqchip/gic-v3-its: Prevent double free on error

The error handling path in its_vpe_irq_domain_alloc() causes a double free

when its_vpe_init() fails after successfully allocating at least one

interrupt. This happens because its_vpe_irq_domain_free() frees the

interrupts along with the area bitmap and the vprop_page and

its_vpe_irq_domain_alloc() subsequently frees the area bitmap and the

vprop_page again.

Fix this by unconditionally invoking its_vpe_irq_domain_free() which

handles all cases correctly and by removing the bitmap/vprop_page freeing

from its_vpe_irq_domain_alloc().

[ tglx: Massaged change log ]

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/03170e657f62c26834172742492a8cb8077ef792Refgit.kernel.org/stable/c/5b012f77abde89bf0be8a0547636184fea618137Refgit.kernel.org/stable/c/5dbdbe1133911ca7d8466bb86885adec32ad9438Refgit.kernel.org/stable/c/aa44d21574751a7d6bca892eb8e0e9ac68372e52Refgit.kernel.org/stable/c/b72d2b1448b682844f995e660b77f2a1fabc1662Refgit.kernel.org/stable/c/c26591afd33adce296c022e3480dea4282b7ef91Refgit.kernel.org/stable/c/dd681710ab77c8beafe2e263064cb1bd0e2d6ca9Refgit.kernel.org/stable/c/f5417ff561b8ac9a7e53c747b8627a7ab58378aeRefgit.kernel.org/stable/c/03170e657f62c26834172742492a8cb8077ef792Refgit.kernel.org/stable/c/5b012f77abde89bf0be8a0547636184fea618137

How CyberStrike helps

Frequently asked questions

What is CVE-2024-35847?

CVE-2024-35847 is a high-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-35847?

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-2024-35847?

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-2024-35847?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-35847 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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