🛡️ AZL-77930 — kernel

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-23221 affecting package kernel 6.6.126.1-1

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.

Affected software

AZL-77930 is recorded against 1 package.

  • kernel

Timeline and source

Published on 18 February 2026 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-02-18
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — —

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