---
id: CVE-2023-1652
title: >-
  A use-after-free flaw was found in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c
  in the NFS filesystem in the Linux Kernel
summary: >-
  A use-after-free flaw was found in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c
  in the NFS filesystem in the Linux Kernel. This issue could allow a local
  attacker to crash the system or it may lead to a kernel information leak
  problem.
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
cwe:
  - CWE-416
  - CWE-416
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.14, < 5.15.91'
  - 'linux_kernel >= 5.16, < 6.1.9'
  - linux_kernel = 6.2
  - enterprise_linux = 9.0
patched:
  - linux_kernel 6.1.9
published: '2023-03-29'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T21:17:14.953'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-1652'
references:
  - url: 'https://access.redhat.com/security/cve/cve-2023-1652'
    label: secalert@redhat.com
  - url: 'https://security.netapp.com/advisory/ntap-20230511-0006/'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/cve-2023-1652'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20230511-0006/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
epss: 0.00246
epssPercentile: 0.14705
ingestedAt: '2026-10-14T21:57:04.732Z'
---

## Overview

A use-after-free flaw was found in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c in the NFS filesystem in the Linux Kernel. This issue could allow a local attacker to crash the system or it may lead to a kernel information leak problem.

## Affected

- `linux_kernel >= 5.14, < 5.15.91`
- `linux_kernel >= 5.16, < 6.1.9`
- `linux_kernel = 6.2`
- `enterprise_linux = 9.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.1.9`