---
id: CVE-2026-89591
title: 'accel/rocket: initialize job domain before cleanup paths'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  accel/rocket: initialize job domain before cleanup paths

  rocket_ioctl_submit_job() releases rjob through rocket_job_put() on
  allocation error paths. rocket_job_cleanup…
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'
cvssSource: vendor
cwe:
  - CWE-476
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 <
    3043230296653a609ab50006899e64bbb2d99465
  - >-
    Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 <
    81731f1eda5e6a1dfad31445f741de9bbefbb08e
  - >-
    Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 <
    70e6a33d68a9b03335c5426332666e52d07f45d6
  - Linux 6.18
published: '2026-09-11'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:49:23.816Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-89591'
references:
  - url: 'https://git.kernel.org/stable/c/3043230296653a609ab50006899e64bbb2d99465'
  - url: 'https://git.kernel.org/stable/c/81731f1eda5e6a1dfad31445f741de9bbefbb08e'
  - url: 'https://git.kernel.org/stable/c/70e6a33d68a9b03335c5426332666e52d07f45d6'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89591.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89591'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532212'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89591'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89591'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89591.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00206
epssPercentile: 0.10642
ingestedAt: '2026-09-14T11:11:19.886Z'
---

## Overview

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

accel/rocket: initialize job domain before cleanup paths

rocket_ioctl_submit_job() releases rjob through rocket_job_put() on
allocation error paths. rocket_job_cleanup() unconditionally calls
rocket_iommu_domain_put(job->domain), but job->domain is assigned only
after task copying and BO lookups. A failure before that assignment can
therefore clean up a job with a NULL domain pointer.

Take the per-file domain reference before the first error path can release
rjob. Also clear rjob->tasks after freeing it in rocket_copy_tasks(), so
the common cleanup path cannot free the task array again after a task-copy
error.

## Affected

- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 3043230296653a609ab50006899e64bbb2d99465`
- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 81731f1eda5e6a1dfad31445f741de9bbefbb08e`
- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 70e6a33d68a9b03335c5426332666e52d07f45d6`
- `Linux 6.18`

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89591.json)