---
id: CVE-2026-93215
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  cdx: Fix double free when sysfs file creation fails

  In cdx_create_res_attr(), if sysfs_create_bin_file() fails, the code
  frees res_attr but doesn't set cdx_dev->res_at…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  cdx: Fix double free when sysfs file creation fails

  In cdx_create_res_attr(), if sysfs_create_bin_file() fails, the code
  frees res_attr but doesn't set cdx_dev->res_at…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d <
    88f4cd42a04bdadd189d7f667a4c279f4e962ca6
  - >-
    Linux >= aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d <
    4cd24873ab9fdbd730604881a6e8087bc7b99336
  - >-
    Linux >= aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d <
    7e9451bf0bdba6daee1eaf4e7566612af6ca1c32
  - >-
    Linux >= aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d <
    6f4acc3a3c300e174e3f586b97b04ed8f5948c36
  - Linux 6.8
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T16:17:16.550'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93215'
references:
  - url: 'https://git.kernel.org/stable/c/4cd24873ab9fdbd730604881a6e8087bc7b99336'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6f4acc3a3c300e174e3f586b97b04ed8f5948c36'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7e9451bf0bdba6daee1eaf4e7566612af6ca1c32'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/88f4cd42a04bdadd189d7f667a4c279f4e962ca6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T15:45:56.670Z'
---

## Overview

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

cdx: Fix double free when sysfs file creation fails

In cdx_create_res_attr(), if sysfs_create_bin_file() fails, the code
frees res_attr but doesn't set cdx_dev->res_attr[num] to NULL. This
leaves a dangling pointer in the array. Then cdx_destroy_res_attr()
frees the already-freed memory. Fix the double free by initializing
cdx_dev->res_attr[num] after sysfs_create_bin_file() completes.

## Remediation

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