---
id: CVE-2026-97574
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bnxt_en: Don't free the live ring's TPA state on queue restart failure

  bnxt_queue_mem_alloc() shallow copies the live RX ring into the clone:

    memcpy(clone, rxr, siz…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  bnxt_en: Don't free the live ring's TPA state on queue restart failure

  bnxt_queue_mem_alloc() shallow copies the live RX ring into the clone:

    memcpy(clone, rxr, siz…
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-826
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 0997443906b96a051011f220a61e6dce4602ec54 <
    e42287b4d38d653f7d4a47f6c29b0c01288bb050
  - >-
    Linux >= bd649c5cc958169b8a8a3e77ea926d92d472b02a <
    8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27
  - >-
    Linux >= bd649c5cc958169b8a8a3e77ea926d92d472b02a <
    0596a7caa6fc283e142716739099c038d8714082
  - >-
    Linux >= bd649c5cc958169b8a8a3e77ea926d92d472b02a <
    5ce7f36c334d723954855ac769ede2fe0e8f89c8
  - Linux >= 6.12.20 < 6.12.112
  - Linux 6.13
published: '2026-09-25'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:18:04.677'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97574'
references:
  - url: 'https://git.kernel.org/stable/c/0596a7caa6fc283e142716739099c038d8714082'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5ce7f36c334d723954855ac769ede2fe0e8f89c8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e42287b4d38d653f7d4a47f6c29b0c01288bb050'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97574.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-97574'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2541078'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-97574'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97574'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97574.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00206
epssPercentile: 0.10486
cvssSource: vendor
ingestedAt: '2026-09-25T11:06:38.911Z'
---

## Overview

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

bnxt_en: Don't free the live ring's TPA state on queue restart failure

bnxt_queue_mem_alloc() shallow copies the live RX ring into the clone:

  memcpy(clone, rxr, sizeof(*rxr));

the code currently clears pointers that the clone owns (such as
rx_agg_bmap), but rx_tpa and rx_tpa_idx_map are left pointing at memory
of the live ring that was cloned.

If an allocation failure happens later and the err_free_tpa_info label
is taken, the live ring's memory can be freed while still in use.

Fix this by initializing the clone's pointers to NULL to prevent live
ring state from being freed inadvertently.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97574.json)