CVE-2026-23221

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.

The following products are affected by CVE-2026-23221 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23221.

URL	Resource
https://git.kernel.org/stable/c/148891e95014b5dc5878acefa57f1940c281c431
https://git.kernel.org/stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0
https://git.kernel.org/stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528
https://git.kernel.org/stable/c/b1983840287303e0dfb401b1b6cecc5ea7471e90
https://git.kernel.org/stable/c/c424e72cfa67e7e1477035058a8a659f2c0ea637
https://git.kernel.org/stable/c/c71dfb7833db7af652ee8f65011f14c97c47405d
https://git.kernel.org/stable/c/dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227
https://lore.kernel.org/linux-cve-announce/2026021806-CVE-2026-23221-43ae@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-23221
https://www.cve.org/CVERecord?id=CVE-2026-23221