CVE-2026-72229
kernel: batman-adv: clean untagged VLAN on netdev registration failure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 15, 2026
Updated · August 19, 2026
Description
A flaw was found in the batman-adv component of the Linux kernel. When a mesh interface is registered, an untagged VLAN object is created. If the network device (netdev) registration fails due to a veto, the cleanup process does not properly free this object. This can lead to a memory leak, potentially impacting system stability or performance over time.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime