---
id: CVE-2026-97412
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pds_core: quiesce DMA before freeing resources

  pdsc_teardown() frees DMA buffers but does not disable bus mastering,
  leaving the device able to perform DMA after the b…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pds_core: quiesce DMA before freeing resources

  pdsc_teardown() frees DMA buffers but does not disable bus mastering,
  leaving the device able to perform DMA after the b…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    cc8beb70e70fc90e54efdbc1128cf7de799e6be4
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    9eee6b90bee3df496ed9094d9e76d5e478d72d0a
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    6443f4f20bdae726fe01cf5946fba9742a0ffda6
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-09-24'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T13:17:24.740'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97412'
references:
  - url: 'https://git.kernel.org/stable/c/6443f4f20bdae726fe01cf5946fba9742a0ffda6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9eee6b90bee3df496ed9094d9e76d5e478d72d0a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cc8beb70e70fc90e54efdbc1128cf7de799e6be4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.887Z'
---

## Overview

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

pds_core: quiesce DMA before freeing resources

pdsc_teardown() frees DMA buffers but does not disable bus mastering,
leaving the device able to perform DMA after the buffers are freed.
This can lead to use-after-free if the device writes to freed memory.

Add pci_clear_master() to pdsc_teardown() to disable bus mastering
before freeing resources, ensuring all DMA is quiesced.

Add pci_set_master() to pdsc_setup() to re-enable bus mastering,
which is needed for the firmware recovery path since pdsc_teardown()
now disables it.

## Remediation

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