---
id: CVE-2026-89527
title: >-
  kernel: svcrdma: Use svc_xprt_put to free listener on create failure
  (CVE-2026-89527)
summary: >-
  A flaw was found in the Linux kernel's svcrdma module. This vulnerability
  occurs when a listener creation fails, leading to an improper release of a
  network namespace reference. This resource leak can be exploited by a local
  attacker, pote…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-772
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 7
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-09-11'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T18:25:39+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89527.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89527.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89527'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532056'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89527'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89527'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89527.mbox
  - url: 'https://git.kernel.org/stable/c/ac1dd6002f758ab7dd3e737757e5a1bb1c0b38d6'
  - url: 'https://git.kernel.org/stable/c/e346ef7bcb137f50c49f969330ab7dcf64ea1654'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.0021
epssPercentile: 0.10002
ingestedAt: '2026-09-14T11:11:19.886Z'
---

## Overview

A flaw was found in the Linux kernel's svcrdma module. This vulnerability occurs when a listener creation fails, leading to an improper release of a network namespace reference. This resource leak can be exploited by a local attacker, potentially causing a denial of service (DoS) by exhausting system resources.

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89527.json)

**kernel: svcrdma: Use svc_xprt_put to free listener on create failure** — rated Low by Red Hat. Released 2026-09-11, updated 2026-09-14.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

No fix planned:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Out of support scope