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CVE-2022-50034

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3 fix use-after-free at workaround 2 BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac cdns3_wa2_r…

Published Jun 18, 2025CWE-416EPSS 0.19%

Overview

CVE-2022-50034 is a high-severity vulnerability. It was published on June 18, 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:

usb: cdns3 fix use-after-free at workaround 2

BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac

cdns3_wa2_remove_old_request()

{

...

kfree(priv_req->request.buf);

cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request);

list_del_init(&priv_req->list);

^^^ use after free

...

}

cdns3_gadget_ep_free_request() free the space pointed by priv_req,

but priv_req is used in the following list_del_init().

This patch move list_del_init() before cdns3_gadget_ep_free_request().

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/6d7ac60098b206d0472475b666cb09d556bec03dRefgit.kernel.org/stable/c/6fd50446e7c9a98b4bcf96815f5c9602a16ea472Refgit.kernel.org/stable/c/7d602f30149a117eea260208b1661bc404c21dfdRefgit.kernel.org/stable/c/c3c1dbad3a2db32ecf371c97f2058491b8ba0f9aRefgit.kernel.org/stable/c/e65d9b7147d7be3504893ca7dfb85286bda83d40

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50034?

CVE-2022-50034 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-50034?

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-2022-50034?

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-2022-50034?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50034 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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