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CVE-2026-45863

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() The dw_i3c_master_i2c_xfers() function allocates memory for the xfer stru…

Published May 27, 2026CWE-401EPSS 0.16%

Overview

CVE-2026-45863 is a medium-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers()

The dw_i3c_master_i2c_xfers() function allocates memory for the xfer

structure using dw_i3c_master_alloc_xfer(). If pm_runtime_resume_and_get()

fails, the function returns without freeing the allocated xfer, resulting

in a memory leak.

Add a dw_i3c_master_free_xfer() call to the error path to ensure the

allocated memory is properly freed.

Compile tested only. Issue found using a prototype static analysis tool

and code review.

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/140a45bd4f6db7d1b30cab967d29689b946c52faRefgit.kernel.org/stable/c/2537089413514caaa9a5fdeeac3a34d45100f747Refgit.kernel.org/stable/c/8e71414e252c1cb235911008a98fd47927d3a55cRefgit.kernel.org/stable/c/a2c41467ef42f69a3958493a0395ba75174710dc

How CyberStrike helps

Frequently asked questions

What is CVE-2026-45863?

CVE-2026-45863 is a medium-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-45863?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-45863?

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-2026-45863?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-45863 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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