---
id: CVE-2022-50470
title: 'xhci: Remove device endpoints from bandwidth list when freeing the device'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  xhci: Remove device endpoints from bandwidth list when freeing the device

  Endpoints are normally deleted from the bandwidth list when they are
  dropped, before the virt…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    5e4ce28ad907aa54f13b21d5f1dc490525957b0c
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    f0de39474078adef6ece7a183e34c15ce2c1d8d1
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    cebbc8d335d6bcc1316584f779c08f80287c6af8
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38c
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    678d2cc2041cc6ce05030852dce9ad42719abcfc
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    c892a81c7424b4f6a660cb9c249d354ccf3afeca
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70
  - >-
    Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 <
    5aed5b7c2430ce318a8e62f752f181e66f0d1053
  - Linux 3.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:11:38.325398Z'
published: '2025-10-04'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:20:47.391Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-50470'
references:
  - url: 'https://git.kernel.org/stable/c/5e4ce28ad907aa54f13b21d5f1dc490525957b0c'
  - url: 'https://git.kernel.org/stable/c/f0de39474078adef6ece7a183e34c15ce2c1d8d1'
  - url: 'https://git.kernel.org/stable/c/cebbc8d335d6bcc1316584f779c08f80287c6af8'
  - url: 'https://git.kernel.org/stable/c/8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38c'
  - url: 'https://git.kernel.org/stable/c/678d2cc2041cc6ce05030852dce9ad42719abcfc'
  - url: 'https://git.kernel.org/stable/c/c892a81c7424b4f6a660cb9c249d354ccf3afeca'
  - url: 'https://git.kernel.org/stable/c/3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70'
  - url: 'https://git.kernel.org/stable/c/5aed5b7c2430ce318a8e62f752f181e66f0d1053'
tags:
  - cve.org
epss: 0.00172
epssPercentile: 0.06602
ingestedAt: '2026-11-05T22:38:31.739Z'
---

## Overview

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

xhci: Remove device endpoints from bandwidth list when freeing the device

Endpoints are normally deleted from the bandwidth list when they are
dropped, before the virt device is freed.

If xHC host is dying or being removed then the endpoints aren't dropped
cleanly due to functions returning early to avoid interacting with a
non-accessible host controller.

So check and delete endpoints that are still on the bandwidth list when
freeing the virt device.

Solves a list_del corruption kernel crash when unbinding xhci-pci,
caused by xhci_mem_cleanup() when it later tried to delete already freed
endpoints from the bandwidth list.

This only affects hosts that use software bandwidth checking, which
currenty is only the xHC in intel Panther Point PCH (Ivy Bridge)

## Affected

- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < 5e4ce28ad907aa54f13b21d5f1dc490525957b0c`
- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < f0de39474078adef6ece7a183e34c15ce2c1d8d1`
- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < cebbc8d335d6bcc1316584f779c08f80287c6af8`
- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < 8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38c`
- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < 678d2cc2041cc6ce05030852dce9ad42719abcfc`
- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < c892a81c7424b4f6a660cb9c249d354ccf3afeca`
- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < 3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70`
- `Linux >= 2e27980e6eb78114c4ecbaad1ba71836e3887d18 < 5aed5b7c2430ce318a8e62f752f181e66f0d1053`
- `Linux 3.2`

## Remediation

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