SB20260816463 - Use-after-free in Linux kernel marvell libertas_tf driver
Published: August 16, 2026
Security Bulletin ID
SB20260816463
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-72070)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to use-after-free in lbtf_free_adapter() when handling device removal during a firmware command timeout. A local user can trigger concurrent teardown and timer callback execution to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/066b59e84f90d270cc15f0370166155aca507630
- https://git.kernel.org/stable/c/4714e95f5d61cb9c5c7c6c4e68b618f37bc6ffcf
- https://git.kernel.org/stable/c/aa6dcd5c8dd9ba1d7d0f60093bcda41c0d6d438d
- https://git.kernel.org/stable/c/bcf7968cb97ce4312588042cf2712f04caff6d8f
- https://git.kernel.org/stable/c/fcff712d0e3d183843ec3916470ee6cc3455baad