CVE Database›Document archive›CVE-2026-90077

CVE-2026-90077

kernel: net: fix a resource leak in copy_net_ns() error handling path

Loading…

Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 6, 2026

Description

A flaw was found in the Linux kernel's network (net) subsystem. An issue in the copy_net_ns() error handling path allows for resources allocated during network namespace creation to leak. This occurs because the preinit_net() function returns prematurely, preventing proper resource deallocation. A local attacker could exploit this resource leak to cause a denial of service (DoS) on the system.

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 · 5.5
CVSS: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