---
id: CVE-2026-46296
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  spi: s3c64xx: fix NULL-deref on driver unbind

  A change moving DMA channel allocation from probe() back to
  s3c64xx_spi_prepare_transfer() failed to remove the correspon…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  spi: s3c64xx: fix NULL-deref on driver unbind

  A change moving DMA channel allocation from probe() back to
  s3c64xx_spi_prepare_transfer() failed to remove the correspon…
severity: none
published: '2026-06-08'
updated: '2026-07-07'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-46296'
references:
  - url: 'https://git.kernel.org/stable/c/1108b8722b9ff0cdd3e8aa18d98244fcd93b6760'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1b66f16a571a10ba8889ac471755c8af9c5b9266'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/22788b1a8611380b141e09a8896702e32d164238'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/29e219a18e21258bdb4ee12cecd0e9ec87d7e6a7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/323a258f4b1916b5a3098618e036e033b2f2317f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/45daacbead8a009844bd5dba6cfa731332184d17'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00114
epssPercentile: 0.01704
ingestedAt: '2026-07-07T18:42:24.311Z'
---

## Overview

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

spi: s3c64xx: fix NULL-deref on driver unbind

A change moving DMA channel allocation from probe() back to
s3c64xx_spi_prepare_transfer() failed to remove the corresponding
deallocation from remove().

Drop the bogus DMA channel release from remove() to avoid triggering a
NULL-pointer dereference on driver unbind.

This issue was flagged by Sashiko when reviewing a controller
deregistration fix.

## Remediation

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