CVE Database›Document archive›CVE-2026-98553

CVE-2026-98553

kernel: autofs: fix sbi->pipe file reference leak in autofs_kill_sb()

Loading…

Severity

Low

Red Hat Product Security

2.3

CVSS 3.1

Review impact separately from score.

Published · October 18, 2026

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's automount file system (autofs). A local user can trigger this issue by initiating an autofs mount operation that fails during initialization, causing the kernel to fail to release associated pipe file references. Repeated exploitation can permanently leak system resources, ultimately leading to a Denial of Service (DoS).

Statement

This vulnerability is rated as having a Low impact because triggering the resource leak requires elevated privileges to perform filesystem mount actions, restricting the attack vector to administrative users. Successful exploitation only results in gradual consumption of kernel pipe references without compromising system integrity or data confidentiality. Consequently, standard multi-user enterprise deployments are not at significant risk of unauthorized compromise.

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 · 2.3
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CWE-772 · Missing Release of Resource after Effective Lifetime