---
id: CVE-2026-53007
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ice: fix potential NULL pointer deref in error path of ice_set_ringparam()

  ice_set_ringparam nullifies tstamp_ring of temporary tx_rings, without
  clearing ICE_TX_RING_…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ice: fix potential NULL pointer deref in error path of ice_set_ringparam()

  ice_set_ringparam nullifies tstamp_ring of temporary tx_rings, without
  clearing ICE_TX_RING_…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 6.18, < 7.0.10'
patched:
  - linux_kernel 7.0.10
published: '2026-06-24'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T11:17:35.593'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53007'
references:
  - url: 'https://git.kernel.org/stable/c/c54e3c270384829336b2526033d44ce1aa6dc67c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c789649d4334a3767210071311d58bc8e74bdec1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fa28351f970fa5138c7c5dedfe5dea480a0ee065'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.0016
epssPercentile: 0.05127
ingestedAt: '2026-07-11T17:13:40.308Z'
---

## Overview

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

ice: fix potential NULL pointer deref in error path of ice_set_ringparam()

ice_set_ringparam nullifies tstamp_ring of temporary tx_rings, without
clearing ICE_TX_RING_FLAGS_TXTIME bit.
When ICE_TX_RING_FLAGS_TXTIME is set and the subsequent
ice_setup_tx_ring() call fails, a NULL pointer dereference could happen
in the unwinding sequence:

ice_clean_tx_ring()
-> ice_is_txtime_cfg() == true (ICE_TX_RING_FLAGS_TXTIME is set)
-> ice_free_tx_tstamp_ring()
  -> ice_free_tstamp_ring()
    -> tstamp_ring->desc (NULL deref)

Clear ICE_TX_RING_FLAGS_TXTIME bit to avoid the potential issue.

Note that this potential issue is found by manual code review.
Compile test only since unfortunately I don't have E830 devices.

## Affected

- `linux_kernel >= 6.18, < 7.0.10`

## Remediation

Upgrade past the affected range:

- `linux_kernel 7.0.10`