CVE-2026-53261
kernel: devlink: Release nested relation on devlink free
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 25, 2026
Updated · October 29, 2026
Description
A flaw was found in the devlink component of the Linux kernel. This issue occurs when a devlink instance acquires a nested relation but fails to register, leading to a resource leak. This can result in system instability or a denial of service (DoS) over time due to resource exhaustion.
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