---
id: CVE-2026-64224
title: 'octeontx2-pf: fix double free in rvu_rep_rsrc_init()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  octeontx2-pf: fix double free in rvu_rep_rsrc_init()

  rvu_rep_rsrc_init() allocates queue memory before calling
  otx2_init_hw_resources(). When hardware resource setup f…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a <
    8864b664d0443ecb8e56690e5546fcda5fe5e81b
  - >-
    Linux >= 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a <
    eb72a65f2bb2cc059e2ca5d83de01fdf3ea602ad
  - >-
    Linux >= 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a <
    e8fb3de2a8effcaf62bec2c56b93d8bb480371d1
  - Linux 6.13
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:32:24.902818Z'
published: '2026-07-24'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:34:30.404Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-64224'
references:
  - url: 'https://git.kernel.org/stable/c/8864b664d0443ecb8e56690e5546fcda5fe5e81b'
  - url: 'https://git.kernel.org/stable/c/eb72a65f2bb2cc059e2ca5d83de01fdf3ea602ad'
  - url: 'https://git.kernel.org/stable/c/e8fb3de2a8effcaf62bec2c56b93d8bb480371d1'
tags:
  - cve.org
epss: 0.00128
epssPercentile: 0.0244
ingestedAt: '2026-11-06T16:57:43.219Z'
---

## Overview

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

octeontx2-pf: fix double free in rvu_rep_rsrc_init()

rvu_rep_rsrc_init() allocates queue memory before calling
otx2_init_hw_resources(). When hardware resource setup fails,
otx2_init_hw_resources() already unwinds the partially initialized
SQ, CQ, and aura state before returning an error. The representor
error path then calls otx2_free_hw_resources() again and can free
the same resources a second time.

Fix this by splitting the cleanup labels so that a failure from
otx2_init_hw_resources() only releases queue memory. Keep the
otx2_free_hw_resources() call for failures that happen after
hardware resource initialization completed successfully.

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-rc3.

Runtime validation was not performed because reproducing this path
requires OcteonTX2 representor hardware.

## Affected

- `Linux >= 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a < 8864b664d0443ecb8e56690e5546fcda5fe5e81b`
- `Linux >= 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a < eb72a65f2bb2cc059e2ca5d83de01fdf3ea602ad`
- `Linux >= 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a < e8fb3de2a8effcaf62bec2c56b93d8bb480371d1`
- `Linux 6.13`

## Remediation

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