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CVE-2026-90022

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_midi2: fix use-after-free in string attribute show path f_midi2_opts_str_show() takes the string lock internally…

Published Sep 16, 2026EPSS 0.17%

Overview

CVE-2026-90022 is a high-severity vulnerability. It was published on September 16, 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:

usb: gadget: f_midi2: fix use-after-free in string attribute show path

f_midi2_opts_str_show() takes the string lock internally, but its

callers dereference the opts->info.<field> pointer before calling it,

outside the lock. This races with f_midi2_opts_str_store(), which

frees the old string under opts->lock when the attribute is written

concurrently, the show path can read a pointer that gets freed

before the lock inside str_show() is even taken.

Change f_midi2_opts_str_show() to take a pointer to the string field,

matching the existing pattern in f_midi2_opts_str_store(), and

dereference it only after the lock is held. Update all three callers

(iface_name, block name, and the EP string option macro) accordingly.

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/49fab5e1bdb205c36c965d0e9677bc40d282d3a2Refgit.kernel.org/stable/c/d11f3300b39e2daad2f0d9d66ddcc39a156cb594Refgit.kernel.org/stable/c/e89e30f0b5d3004fe5955250bd8b04f3733e32ceRefgit.kernel.org/stable/c/f9bdf4c4f6410a1dfafafa383a0e21069372657fRefgit.kernel.org/stable/c/fed0aa7c6eaedc6c0d4e362fc91724aa47be4a7b

How CyberStrike helps

Frequently asked questions

What is CVE-2026-90022?

CVE-2026-90022 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-90022?

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-2026-90022?

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-2026-90022?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-90022 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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