---
id: CVE-2026-98833
title: 'mtd: core: call _get_device() with the master MTD'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mtd: core: call _get_device() with the master MTD

  __get_mtd_device() calls the master's _get_device() callback with mtd,
  which may be a partition. __put_mtd_device() p…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef <
    95c8f36293c22d450c371167ad4f9a5bbadc7539
  - >-
    Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef <
    f971f1c63cf71579258360a12bd185bc1cd1a043
  - >-
    Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef <
    dc482a281a19a7d7e91ad1b2d551bb301c54d0e6
  - >-
    Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef <
    12b31d1acd20b3185bb5f0748db0cf6874c8e9d1
  - Linux 5.7
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:49:42.181Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98833'
references:
  - url: 'https://git.kernel.org/stable/c/95c8f36293c22d450c371167ad4f9a5bbadc7539'
  - url: 'https://git.kernel.org/stable/c/f971f1c63cf71579258360a12bd185bc1cd1a043'
  - url: 'https://git.kernel.org/stable/c/dc482a281a19a7d7e91ad1b2d551bb301c54d0e6'
  - url: 'https://git.kernel.org/stable/c/12b31d1acd20b3185bb5f0748db0cf6874c8e9d1'
tags:
  - cve.org
ingestedAt: '2026-10-18T16:47:32.470Z'
---

## Overview

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

mtd: core: call _get_device() with the master MTD

__get_mtd_device() calls the master's _get_device() callback with mtd,
which may be a partition. __put_mtd_device() passes the master.

This breaks gluebi partitions because gluebi_get_device() uses
container_of() and therefore requires the master MTD. Pass the master
to _get_device(), matching _put_device().

## Affected

- `Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef < 95c8f36293c22d450c371167ad4f9a5bbadc7539`
- `Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef < f971f1c63cf71579258360a12bd185bc1cd1a043`
- `Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef < dc482a281a19a7d7e91ad1b2d551bb301c54d0e6`
- `Linux >= 46b5889cc2c54bac7d7e727a44d28a298df23cef < 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1`
- `Linux 5.7`

## Remediation

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