---
id: CVE-2026-53324
title: 'net: mana: Use pci_name() for debugfs directory naming'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: mana: Use pci_name() for debugfs directory naming

  Use pci_name(pdev) for the per-device debugfs directory instead of
  hardcoded "0" for PFs and pci_slot_name(pdev-…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 6607c17c6c5e029da03a90085db22daf518232bf <
    34dbd7b819544c99c9d96b400fe4db613f40ac4b
  - >-
    Linux >= 6607c17c6c5e029da03a90085db22daf518232bf <
    9211eb97e8f8c28bf9313ab97862d143dbbbef97
  - >-
    Linux >= 6607c17c6c5e029da03a90085db22daf518232bf <
    c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559
  - Linux 6.13
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:27:05.858609Z'
published: '2026-06-26'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:34:21.136Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-53324'
references:
  - url: 'https://git.kernel.org/stable/c/34dbd7b819544c99c9d96b400fe4db613f40ac4b'
  - url: 'https://git.kernel.org/stable/c/9211eb97e8f8c28bf9313ab97862d143dbbbef97'
  - url: 'https://git.kernel.org/stable/c/c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559'
tags:
  - cve.org
epss: 0.0016
epssPercentile: 0.05202
ingestedAt: '2026-11-06T16:57:43.243Z'
---

## Overview

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

net: mana: Use pci_name() for debugfs directory naming

Use pci_name(pdev) for the per-device debugfs directory instead of
hardcoded "0" for PFs and pci_slot_name(pdev->slot) for VFs. The
previous approach had two issues:

1. pci_slot_name() dereferences pdev->slot, which can be NULL for VFs
   in environments like generic VFIO passthrough or nested KVM,
   causing a NULL pointer dereference.

2. Multiple PFs would all use "0", and VFs across different PCI
   domains or buses could share the same slot name, leading to
   -EEXIST errors from debugfs_create_dir().

pci_name(pdev) returns the unique BDF address, is always valid, and is
unique across the system.

## Affected

- `Linux >= 6607c17c6c5e029da03a90085db22daf518232bf < 34dbd7b819544c99c9d96b400fe4db613f40ac4b`
- `Linux >= 6607c17c6c5e029da03a90085db22daf518232bf < 9211eb97e8f8c28bf9313ab97862d143dbbbef97`
- `Linux >= 6607c17c6c5e029da03a90085db22daf518232bf < c116f07ab9d22bb6f355f3cf9e44c1e6a47fe559`
- `Linux 6.13`

## Remediation

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