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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-23221 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix use-after-free in driver_override_show() The driver_override_show() function reads the driver_override string without holding the device_lock. However, driver_override_store() uses driver_set_override(), which modifies and frees the string while holding the device_lock. This can result in a concurrent use-after-free if the string is freed by the store function while being read by the show function. Fix this by holding the device_lock around the read operation.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/148891e95014b5dc5878acefa57f1940c281c431 kernel.org
https://git.kernel.org/stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0 kernel.org
https://git.kernel.org/stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528 kernel.org
https://git.kernel.org/stable/c/b1983840287303e0dfb401b1b6cecc5ea7471e90 kernel.org
https://git.kernel.org/stable/c/c424e72cfa67e7e1477035058a8a659f2c0ea637 kernel.org
https://git.kernel.org/stable/c/c71dfb7833db7af652ee8f65011f14c97c47405d kernel.org
https://git.kernel.org/stable/c/dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23221
NVD Published Date:
02/18/2026
NVD Last Modified:
02/22/2026
Source:
kernel.org