---
id: CVE-2026-98435
title: >-
  kernel: EDAC/altera: Use parent device for devres in altr_portb_setup()
  (CVE-2026-98435)
summary: >-
  A flaw was found in the Linux kernel's Altera EDAC (Error Detection and
  Correction) driver. Device-managed interrupt requests and resource groups in
  the altr_portb_setup() function were improperly associated with a temporary
  per-port devic…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-772
vendor: Red Hat
product: Linux
affected:
  - >-
    Linux >= 911049845d7096c27304930ff478cbf3f2623ba3 <
    8325ecf3f16d764a0e0ba42c95b63f08e38710a8
  - >-
    Linux >= 911049845d7096c27304930ff478cbf3f2623ba3 <
    2cf03ada03532bfb42f06fbf01d9e2a99e6011d7
  - >-
    Linux >= 911049845d7096c27304930ff478cbf3f2623ba3 <
    dc4797c909b6cacb1bb24449e6c57d50a14d73bf
  - >-
    Linux >= 911049845d7096c27304930ff478cbf3f2623ba3 <
    9868f5c077dfe0b606331f2e782484f91a5789a5
  - Linux 4.9
published: '2026-10-18'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T10:46:41+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98435.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98435.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98435'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2554820'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98435'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98435'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98435.mbox
  - url: 'https://git.kernel.org/stable/c/8325ecf3f16d764a0e0ba42c95b63f08e38710a8'
  - url: 'https://git.kernel.org/stable/c/2cf03ada03532bfb42f06fbf01d9e2a99e6011d7'
  - url: 'https://git.kernel.org/stable/c/dc4797c909b6cacb1bb24449e6c57d50a14d73bf'
  - url: 'https://git.kernel.org/stable/c/9868f5c077dfe0b606331f2e782484f91a5789a5'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
ingestedAt: '2026-10-18T15:45:12.310Z'
epss: 0.00156
epssPercentile: 0.04729
---

## Overview

A flaw was found in the Linux kernel's Altera EDAC (Error Detection and Correction) driver. Device-managed interrupt requests and resource groups in the altr_portb_setup() function were improperly associated with a temporary per-port device structure rather than the parent device. A local privileged user could trigger this flaw during device setup or teardown, leading to improper resource management. This issue could result in system instability or a Denial of Service (DoS).

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98435.json)

**kernel: EDAC/altera: Use parent device for devres in altr_portb_setup()** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-19.

Not 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

## Remediation

Refer to the advisory for fix availability.