CVE-2026-23297

kernel: nfsd: Fix cred ref leak in nfsd_nl_threads_set_doit()

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · March 25, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's nfsd component. A local user could exploit this vulnerability due to a missing put_cred() call in the nfsd_nl_threads_set_doit() function. This oversight leads to a memory leak of struct cred objects, which can result in a denial of service by exhausting available memory resources.

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