CVE-2026-23221
bus: fsl-mc: fix use-after-free in driver_override_show()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.10
References 7
git.kernel.org
- stable/c/c71dfb7833db7af652ee8f65011f14c97c47405d
- stable/c/c424e72cfa67e7e1477035058a8a659f2c0ea637
- stable/c/b1983840287303e0dfb401b1b6cecc5ea7471e90
- stable/c/dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227
- stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0
- stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528
- stable/c/148891e95014b5dc5878acefa57f1940c281c431