---
id: CVE-2026-80643
title: 'EDAC/igen6: Fix call trace due to missing release()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  EDAC/igen6: Fix call trace due to missing release()

  When unloading the igen6_edac driver, there is a call trace:

    Device '(null)' does not have a release() function,…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 <
    fa9560b6d3f665eddf7a625adfc9af8c6980c3f5
  - >-
    Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 <
    449ba210e6bee9ef6e69c6ab58198ffa5aa479ae
  - >-
    Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 <
    9a84ced0243c74aa431ec287555054c69e6167d1
  - >-
    Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 <
    a341302c5126ef96bb45286224d67ef60a24281e
  - >-
    Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 <
    ab1f9d466c7d83ab0d2a529e07984e53b5960dcd
  - Linux 5.11
published: '2026-08-28'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T12:46:43.791Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80643'
references:
  - url: 'https://git.kernel.org/stable/c/fa9560b6d3f665eddf7a625adfc9af8c6980c3f5'
  - url: 'https://git.kernel.org/stable/c/449ba210e6bee9ef6e69c6ab58198ffa5aa479ae'
  - url: 'https://git.kernel.org/stable/c/9a84ced0243c74aa431ec287555054c69e6167d1'
  - url: 'https://git.kernel.org/stable/c/a341302c5126ef96bb45286224d67ef60a24281e'
  - url: 'https://git.kernel.org/stable/c/ab1f9d466c7d83ab0d2a529e07984e53b5960dcd'
tags:
  - cve.org
epss: 0.00206
epssPercentile: 0.10093
ingestedAt: '2026-10-21T12:48:53.753Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

EDAC/igen6: Fix call trace due to missing release()

When unloading the igen6_edac driver, there is a call trace:

  Device '(null)' does not have a release() function, it is broken and must be fixed.
  See Documentation/core-api/kobject.rst.
  WARNING: drivers/base/core.c:2567 at device_release+0x84/0x90, CPU#5: rmmod/127209
  ...
  RIP: 0010:device_release+0x84/0x90
  Call Trace:
   <TASK>
   kobject_put+0x8c/0x220
   put_device+0x17/0x30
   igen6_unregister_mcis+0xa2/0xe0 [igen6_edac]
   igen6_remove+0x82/0xb0 [igen6_edac]
   ...

Fix the call trace by providing empty release() functions for the
memory controller devices.

## Affected

- `Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 < fa9560b6d3f665eddf7a625adfc9af8c6980c3f5`
- `Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 < 449ba210e6bee9ef6e69c6ab58198ffa5aa479ae`
- `Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 < 9a84ced0243c74aa431ec287555054c69e6167d1`
- `Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 < a341302c5126ef96bb45286224d67ef60a24281e`
- `Linux >= 10590a9d4f23e0a519730d79d39331df60ad2079 < ab1f9d466c7d83ab0d2a529e07984e53b5960dcd`
- `Linux 5.11`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.