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CVE-2026-72181

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASK_OFFSTACK memory corruption This patch addresses a critical memory management flaw.

Published Aug 15, 2026EPSS 0.16%

Overview

CVE-2026-72181 is a high-severity vulnerability. It was published on August 15, 2026 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:

mips: sched: Fix CPUMASK_OFFSTACK memory corruption

This patch addresses a critical memory management flaw. When

CONFIG_CPUMASK_OFFSTACK is enabled, cpumask_var_t is a pointer.

Consequently, sizeof(new_mask) evaluates to the pointer size, causing

copy_from_user() to clobber the mask pointer. Furthermore, the old

logic performed copy_from_user() before allocating the mask.

Fix this by allocating new_mask first. To handle variable-sized user

masks correctly, use cpumask_size() to truncate overly large user masks

or pad undersized masks with zeros before copying the data directly into

the allocated buffer.

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/15ba8053fe4162c933855f1676fb321cdb6251c7Refgit.kernel.org/stable/c/1caee6e084a96ada94658f261ced377d85af3f03Refgit.kernel.org/stable/c/2f7730c03a9deea3ba7a1c980070d363b4ea2046Refgit.kernel.org/stable/c/3446ffb5d03c36f9ce88ede7ca5be319a2968d96Refgit.kernel.org/stable/c/87a56c1e8e36d06ebe8640432f911538ded7827dRefgit.kernel.org/stable/c/98e37db4a34d3af3fb2f4648295c25b5e40b20e3Refgit.kernel.org/stable/c/a1dd41d00c57efb1fbc6f361c5f48c9d00cca51cRefgit.kernel.org/stable/c/d20ee42f8226607b5693b2bc2f115ca2d270221a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-72181?

CVE-2026-72181 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-72181?

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-2026-72181?

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-2026-72181?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-72181 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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