---
id: CVE-2026-72023
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  octeontx2-pf: fix SQB pointer leak on init failure

  otx2_init_hw_resources() initializes SQ aura and pool resources before
  several later setup steps
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  octeontx2-pf: fix SQB pointer leak on init failure

  otx2_init_hw_resources() initializes SQ aura and pool resources before
  several later setup steps. On failure, err_fr…
severity: none
published: '2026-08-15'
updated: '2026-08-23'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72023'
references:
  - url: 'https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.0022
epssPercentile: 0.11075
ingestedAt: '2026-08-23T13:48:07.436Z'
---

## Overview

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

octeontx2-pf: fix SQB pointer leak on init failure

otx2_init_hw_resources() initializes SQ aura and pool resources before
several later setup steps. On failure, err_free_sq_ptrs only frees SQB
pages, leaving the per-SQ sqb_ptrs arrays behind.

Use otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs
even when sq->sqe has not been allocated yet.

The bug was first flagged by an experimental analysis tool we are
developing for kernel memory-management bugs while analyzing
v6.13-rc1. The tool is still under development and is not yet publicly
available. Manual inspection confirms that the bug is still
present in v7.1.1.

An x86_64 allyesconfig build showed no new warnings. As we do not have an
OcteonTX2 PF device and the corresponding AF mailbox setup to test with,
no runtime testing was able to be performed.

## Remediation

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