---
id: CVE-2022-49616
title: 'ASoC: rt7*-sdw: harden jack_detect_handler'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ASoC: rt7*-sdw: harden jack_detect_handler

  Realtek headset codec drivers typically check if the card is
  instantiated before proceeding with the jack detection.

  The rt…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 320b8b0d13b81f3697acff5b6ddb47f88a09c118 <
    07a606e1389a63b61cb8cd591026f30529117573
  - >-
    Linux >= 320b8b0d13b81f3697acff5b6ddb47f88a09c118 <
    1d75b73ec6d6b705cca528b36d8315e43e8d7fa5
  - >-
    Linux >= 320b8b0d13b81f3697acff5b6ddb47f88a09c118 <
    0484271ab0ce50649329fa9dc23c50853c5b26a4
  - Linux 5.6
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T19:46:27.419054Z'
published: '2025-02-26'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T19:49:41.175Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-49616'
references:
  - url: 'https://git.kernel.org/stable/c/07a606e1389a63b61cb8cd591026f30529117573'
  - url: 'https://git.kernel.org/stable/c/1d75b73ec6d6b705cca528b36d8315e43e8d7fa5'
  - url: 'https://git.kernel.org/stable/c/0484271ab0ce50649329fa9dc23c50853c5b26a4'
tags:
  - cve.org
epss: 0.00258
epssPercentile: 0.17594
ingestedAt: '2026-11-05T22:38:31.583Z'
---

## Overview

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

ASoC: rt7*-sdw: harden jack_detect_handler

Realtek headset codec drivers typically check if the card is
instantiated before proceeding with the jack detection.

The rt700, rt711 and rt711-sdca are however missing a check on the
card pointer, which can lead to NULL dereferences encountered in
driver bind/unbind tests.

## Affected

- `Linux >= 320b8b0d13b81f3697acff5b6ddb47f88a09c118 < 07a606e1389a63b61cb8cd591026f30529117573`
- `Linux >= 320b8b0d13b81f3697acff5b6ddb47f88a09c118 < 1d75b73ec6d6b705cca528b36d8315e43e8d7fa5`
- `Linux >= 320b8b0d13b81f3697acff5b6ddb47f88a09c118 < 0484271ab0ce50649329fa9dc23c50853c5b26a4`
- `Linux 5.6`

## Remediation

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