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CVE-2025-22068

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ublk: make sure ubq->canceling is set when queue is frozen Now ublk driver depends on `ubq->canceling` for deciding if the requ…

Published Apr 16, 2025CWE-416EPSS 0.21%

Overview

CVE-2025-22068 is a high-severity vulnerability. It was published on April 16, 2025 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:

ublk: make sure ubq->canceling is set when queue is frozen

Now ublk driver depends on `ubq->canceling` for deciding if the request

can be dispatched via uring_cmd & io_uring_cmd_complete_in_task().

Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd()

and io_uring_cmd_done().

So set ubq->canceling when queue is frozen, this way makes sure that the

flag can be observed from ublk_queue_rq() reliably, and avoids

use-after-free on uring_cmd.

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/5491400589e7572c2d2627ed6384302f7672aa1dRefgit.kernel.org/stable/c/7e3497d7dacb5aee69dd9be842b778083cae0e75Refgit.kernel.org/stable/c/8741d0737921ec1c03cf59aebf4d01400c2b461aRefgit.kernel.org/stable/c/9158359015f0eda00e521e35b7bc7ebce176aebf

How CyberStrike helps

Frequently asked questions

What is CVE-2025-22068?

CVE-2025-22068 is a high-severity vulnerability. It was published on April 16, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-22068?

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-2025-22068?

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-2025-22068?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-22068 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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