---
id: CVE-2026-97505
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()

  Currently, the __resource_resize_store() allows writing to the
  resourceN_resize sysfs attribute to chan…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()

  Currently, the __resource_resize_store() allows writing to the
  resourceN_resize sysfs attribute to chan…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    b722a607f858b9cd036075ea0efad553fb98e982
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    cbf0628c0b7db86c5ce36451f088101546acbf1d
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    25ec7f57deceec633f27bc93b615f951e2ade814
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T17:17:28.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97505'
references:
  - url: 'https://git.kernel.org/stable/c/25ec7f57deceec633f27bc93b615f951e2ade814'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b722a607f858b9cd036075ea0efad553fb98e982'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cbf0628c0b7db86c5ce36451f088101546acbf1d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.863Z'
---

## Overview

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

PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()

Currently, the __resource_resize_store() allows writing to the
resourceN_resize sysfs attribute to change a BAR's size without checking
for capabilities, currently relying only on the file access check.

Resizing a BAR modifies PCI device configuration and can disrupt active
drivers.  After the upcoming conversion to static attributes, it will also
trigger resource file updates via sysfs_update_groups().

Add a CAP_SYS_ADMIN check to prevent unprivileged users from performing BAR
resize operations.

## Remediation

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