---
id: CVE-2026-43135
title: 'media: cx23885: Add missing unmap in snd_cx23885_hw_params()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  media: cx23885: Add missing unmap in snd_cx23885_hw_params()

  In error path, add cx23885_alsa_dma_unmap() to release the
  resource acquired by cx23885_alsa_dma_map().
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    fda46c9025b755ea50a969b960f333be62421b71
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    0b7f56084cc3d7766bf274b71cd14cc9674b76bf
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    505630dd1ebf4b53d3f2866c057ddd93157a24d8
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    544215cc37d032ccaf1919852c05e2439a4d7540
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    9c0a6ff538660c36a98081916a24f08d55a91331
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    9544b73cad4ee667fed6a60f71570c58a870a735
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    fc4df593a8ffded2f77d69a73ecb51d364932ca5
  - >-
    Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 <
    141c81849fab2ad4d6e3fdaff7cbaa873e8b5eb2
  - Linux 3.18
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T15:29:15.574567Z'
published: '2026-05-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T15:32:32.862Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-43135'
references:
  - url: 'https://git.kernel.org/stable/c/fda46c9025b755ea50a969b960f333be62421b71'
  - url: 'https://git.kernel.org/stable/c/0b7f56084cc3d7766bf274b71cd14cc9674b76bf'
  - url: 'https://git.kernel.org/stable/c/505630dd1ebf4b53d3f2866c057ddd93157a24d8'
  - url: 'https://git.kernel.org/stable/c/544215cc37d032ccaf1919852c05e2439a4d7540'
  - url: 'https://git.kernel.org/stable/c/9c0a6ff538660c36a98081916a24f08d55a91331'
  - url: 'https://git.kernel.org/stable/c/9544b73cad4ee667fed6a60f71570c58a870a735'
  - url: 'https://git.kernel.org/stable/c/fc4df593a8ffded2f77d69a73ecb51d364932ca5'
  - url: 'https://git.kernel.org/stable/c/141c81849fab2ad4d6e3fdaff7cbaa873e8b5eb2'
tags:
  - cve.org
epss: 0.00123
epssPercentile: 0.02039
ingestedAt: '2026-11-06T15:54:04.016Z'
---

## Overview

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

media: cx23885: Add missing unmap in snd_cx23885_hw_params()

In error path, add cx23885_alsa_dma_unmap() to release the
resource acquired by cx23885_alsa_dma_map().

## Affected

- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < fda46c9025b755ea50a969b960f333be62421b71`
- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < 0b7f56084cc3d7766bf274b71cd14cc9674b76bf`
- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < 505630dd1ebf4b53d3f2866c057ddd93157a24d8`
- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < 544215cc37d032ccaf1919852c05e2439a4d7540`
- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < 9c0a6ff538660c36a98081916a24f08d55a91331`
- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < 9544b73cad4ee667fed6a60f71570c58a870a735`
- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < fc4df593a8ffded2f77d69a73ecb51d364932ca5`
- `Linux >= 9529a4b0cf49163e489446ec159a2dfb64f78df8 < 141c81849fab2ad4d6e3fdaff7cbaa873e8b5eb2`
- `Linux 3.18`

## Remediation

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