---
id: CVE-2023-53050
title: 'thunderbolt: Fix memory leak in margining'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  thunderbolt: Fix memory leak in margining

  Memory for the usb4->margining needs to be relased for the upstream port
  of the router as well, even though the debugfs direc…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d0f1e0c2a6990922818d6616a48d3d92bb7ddac1 <
    f390095bbd131ec2dfb29792d9f6fd0f0656bfc0
  - >-
    Linux >= d0f1e0c2a6990922818d6616a48d3d92bb7ddac1 <
    0b357b360e671688f9bf38ff94300515b68bc247
  - >-
    Linux >= d0f1e0c2a6990922818d6616a48d3d92bb7ddac1 <
    acec726473822bc6b585961f4ca2a11fa7f28341
  - Linux 6.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:15:30.431577Z'
published: '2025-05-02'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:20:56.532Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53050'
references:
  - url: 'https://git.kernel.org/stable/c/f390095bbd131ec2dfb29792d9f6fd0f0656bfc0'
  - url: 'https://git.kernel.org/stable/c/0b357b360e671688f9bf38ff94300515b68bc247'
  - url: 'https://git.kernel.org/stable/c/acec726473822bc6b585961f4ca2a11fa7f28341'
tags:
  - cve.org
epss: 0.00199
epssPercentile: 0.09786
ingestedAt: '2026-11-05T22:38:31.759Z'
---

## Overview

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

thunderbolt: Fix memory leak in margining

Memory for the usb4->margining needs to be relased for the upstream port
of the router as well, even though the debugfs directory gets released
with the router device removal. Fix this.

## Affected

- `Linux >= d0f1e0c2a6990922818d6616a48d3d92bb7ddac1 < f390095bbd131ec2dfb29792d9f6fd0f0656bfc0`
- `Linux >= d0f1e0c2a6990922818d6616a48d3d92bb7ddac1 < 0b357b360e671688f9bf38ff94300515b68bc247`
- `Linux >= d0f1e0c2a6990922818d6616a48d3d92bb7ddac1 < acec726473822bc6b585961f4ca2a11fa7f28341`
- `Linux 6.1`

## Remediation

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