---
id: CVE-2026-98721
title: 'mtd: rawnand: cadence: Initialize IRQ state before requesting IRQ'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mtd: rawnand: cadence: Initialize IRQ state before requesting IRQ

  The Cadence NAND interrupt handler uses both the IRQ lock and completion
  object. Registering the IRQ …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 <
    24319f25b641e55f84e55455092a39a2485c78d4
  - >-
    Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 <
    1ed0ccd5649154bfc00ab11c59262d4f42515252
  - >-
    Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 <
    bbd87eca5407288f2b63ff9357c611cd57e7e640
  - >-
    Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 <
    21f027016b1290d13c30b198ae7a00e6b3d1d5a5
  - Linux 5.5
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:46:56.857Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98721'
references:
  - url: 'https://git.kernel.org/stable/c/24319f25b641e55f84e55455092a39a2485c78d4'
  - url: 'https://git.kernel.org/stable/c/1ed0ccd5649154bfc00ab11c59262d4f42515252'
  - url: 'https://git.kernel.org/stable/c/bbd87eca5407288f2b63ff9357c611cd57e7e640'
  - url: 'https://git.kernel.org/stable/c/21f027016b1290d13c30b198ae7a00e6b3d1d5a5'
tags:
  - cve.org
ingestedAt: '2026-10-18T16:47:32.509Z'
---

## Overview

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

mtd: rawnand: cadence: Initialize IRQ state before requesting IRQ

The Cadence NAND interrupt handler uses both the IRQ lock and completion
object. Registering the IRQ before initializing them leaves a window in
which a pending interrupt can access uninitialized synchronization state.

Initialize them before registering the handler.

## Affected

- `Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 < 24319f25b641e55f84e55455092a39a2485c78d4`
- `Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 < 1ed0ccd5649154bfc00ab11c59262d4f42515252`
- `Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 < bbd87eca5407288f2b63ff9357c611cd57e7e640`
- `Linux >= ec4ba01e894d3165e4d1ccbef782ef5593b708b4 < 21f027016b1290d13c30b198ae7a00e6b3d1d5a5`
- `Linux 5.5`

## Remediation

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