---
id: CVE-2022-50305
title: 'ASoC: sof_es8336: fix possible use-after-free in sof_es8336_remove()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ASoC: sof_es8336: fix possible use-after-free in sof_es8336_remove()

  sof_es8336_remove() calls cancel_delayed_work(). However, that
  function does not wait until the wo…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= b60ee210a76cabdc2dd5396de299a1860b4945cd <
    b85102a3aa3810a09eb55692e8cd6ffbb304e57d
  - >-
    Linux >= 89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 <
    390a1a98288a53b2e7555097d83c6e55d579b166
  - >-
    Linux >= 89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 <
    1b41beaa7a58467505ec3023af8aad74f878b888
  - Linux >= 6.0.11 < 6.0.16
  - Linux 6.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:09:21.410857Z'
published: '2025-09-15'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:10:33.903Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-50305'
references:
  - url: 'https://git.kernel.org/stable/c/b85102a3aa3810a09eb55692e8cd6ffbb304e57d'
  - url: 'https://git.kernel.org/stable/c/390a1a98288a53b2e7555097d83c6e55d579b166'
  - url: 'https://git.kernel.org/stable/c/1b41beaa7a58467505ec3023af8aad74f878b888'
tags:
  - cve.org
epss: 0.00161
epssPercentile: 0.05322
ingestedAt: '2026-11-05T22:38:31.723Z'
---

## Overview

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

ASoC: sof_es8336: fix possible use-after-free in sof_es8336_remove()

sof_es8336_remove() calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This
means that the callback function may still be running after
the driver's remove function has finished, which would result
in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

## Affected

- `Linux >= b60ee210a76cabdc2dd5396de299a1860b4945cd < b85102a3aa3810a09eb55692e8cd6ffbb304e57d`
- `Linux >= 89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 < 390a1a98288a53b2e7555097d83c6e55d579b166`
- `Linux >= 89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 < 1b41beaa7a58467505ec3023af8aad74f878b888`
- `Linux >= 6.0.11 < 6.0.16`
- `Linux 6.1`

## Remediation

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