---
id: CVE-2026-68133
title: 'ice: fix PTP Call Trace during PTP release'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ice: fix PTP Call Trace during PTP release

  If a PF reset occurs when the PTP state is ICE_PTP_UNINIT, then
  ice_ptp_rebuild() will update the state to ICE_PTP_ERROR. Th…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 <
    7d517b255f669cedd09830214d55f2f413b34481
  - >-
    Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 <
    e4406cbdd915f702d2ed9ee8b30683a16b06c6ac
  - >-
    Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 <
    14fceda28069fdbe1bb49cdb6e1774892b583348
  - >-
    Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 <
    f6a7e00b81e35ef1325234925f2fe1e53b466f92
  - Linux 6.9
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:42:57.558451Z'
published: '2026-08-10'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:44:59.332Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-68133'
references:
  - url: 'https://git.kernel.org/stable/c/7d517b255f669cedd09830214d55f2f413b34481'
  - url: 'https://git.kernel.org/stable/c/e4406cbdd915f702d2ed9ee8b30683a16b06c6ac'
  - url: 'https://git.kernel.org/stable/c/14fceda28069fdbe1bb49cdb6e1774892b583348'
  - url: 'https://git.kernel.org/stable/c/f6a7e00b81e35ef1325234925f2fe1e53b466f92'
tags:
  - cve.org
epss: 0.00175
epssPercentile: 0.07069
ingestedAt: '2026-11-06T16:57:43.144Z'
---

## Overview

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

ice: fix PTP Call Trace during PTP release

If a PF reset occurs when the PTP state is ICE_PTP_UNINIT, then
ice_ptp_rebuild() will update the state to ICE_PTP_ERROR. This will
result in the following PTP release call trace during driver unload:

    kernel BUG at lib/list_debug.c:52!
    ice_ptp_release+0x332/0x3c0 [ice]
    ice_deinit_features.part.0+0x10e/0x120 [ice]
    ice_remove+0x100/0x220 [ice]

This was observed when passing PF1 through to a VM. ice_ptp_init()
fails because ctrl_pf is NULL and sets the state to ICE_PTP_UNINIT.

Fix by detecting the ICE_PTP_UNINIT state in ice_ptp_rebuild() and
returning without error, preventing the invalid state transition to
ICE_PTP_ERROR. The only valid path to ICE_PTP_ERROR is from
ICE_PTP_RESETTING after a failed rebuild.

## Affected

- `Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 < 7d517b255f669cedd09830214d55f2f413b34481`
- `Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 < e4406cbdd915f702d2ed9ee8b30683a16b06c6ac`
- `Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 < 14fceda28069fdbe1bb49cdb6e1774892b583348`
- `Linux >= 8293e4cb2ff54b1ec4f7206dcb74c908f62a3fb8 < f6a7e00b81e35ef1325234925f2fe1e53b466f92`
- `Linux 6.9`

## Remediation

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