---
id: CVE-2026-98474
title: >-
  kernel: s390/pci: Fix missing device lock in zpci_report_status()
  (CVE-2026-98474)
summary: >-
  A flaw was found in the Linux kernel's s390 PCI subsystem. This flaw can lead
  to a Denial of Service (DoS) due to a missing device lock during PCI
  (Peripheral Component Interconnect) error recovery. When error recovery status
  is reported w…
severity: medium
cvss: 4.1
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-413
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-10-18'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T10:08:48+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98474.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98474.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98474'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2554841'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98474'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98474'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98474.mbox
  - url: 'https://git.kernel.org/stable/c/743a8458978d13d84a1cf74bcd29b9959a75d3a0'
  - url: 'https://git.kernel.org/stable/c/1b957d5c2f737cda731cb1a1b71a7524d54538f2'
  - url: 'https://git.kernel.org/stable/c/0261aef4b15efcee2860ab857e5cb05e9bfa47b0'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00166
epssPercentile: 0.05796
ingestedAt: '2026-10-18T15:45:12.298Z'
---

## Overview

A flaw was found in the Linux kernel's s390 PCI subsystem. This flaw can lead to a Denial of Service (DoS) due to a missing device lock during PCI (Peripheral Component Interconnect) error recovery. When error recovery status is reported without proper locking, concurrent device operations can access driver data in an inconsistent state, potentially causing the operating system to crash.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98474.json)

**kernel: s390/pci: Fix missing device lock in zpci_report_status()** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

No fix planned:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

Not affected:

- 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

## Remediation

Fix deferred