---
id: CVE-2026-89590
title: 'accel/rocket: Fix error path handling in rocket_job_run()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  accel/rocket: Fix error path handling in rocket_job_run()

  In rocket_job_run(), after taking an extra fence reference for
  job->done_fence via dma_fence_get(), the error…
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-911
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 <
    9ad8821573a36bcd18c84dbca3027802b0ea062f
  - >-
    Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 <
    7d6fa298c23495b805004f5f446497b661998fa5
  - >-
    Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 <
    9b2dedadf6a91ac3fc9fae268bb556a041222711
  - Linux 6.18
published: '2026-09-11'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:49:22.866Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-89590'
references:
  - url: 'https://git.kernel.org/stable/c/9ad8821573a36bcd18c84dbca3027802b0ea062f'
  - url: 'https://git.kernel.org/stable/c/7d6fa298c23495b805004f5f446497b661998fa5'
  - url: 'https://git.kernel.org/stable/c/9b2dedadf6a91ac3fc9fae268bb556a041222711'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89590.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89590'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532024'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89590'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89590'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89590.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00206
epssPercentile: 0.10639
ingestedAt: '2026-09-14T11:11:19.886Z'
---

## Overview

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

accel/rocket: Fix error path handling in rocket_job_run()

In rocket_job_run(), after taking an extra fence reference for
job->done_fence via dma_fence_get(), the error paths have three bugs:

- The dma_fence reference held by job->done_fence is never released,
  causing a reference leak.
- pm_runtime_get_sync() increments the usage counter even on failure,
  but the error path does not decrement it, leaking the runtime PM
  reference and preventing the NPU from suspending.
- A valid but unsignaled fence is returned to the DRM scheduler,
  which triggers WARN("Fence ... released with pending signals!")
  when the scheduler drops its reference.

Fix by replacing pm_runtime_get_sync() with pm_runtime_resume_and_get()
which auto-balances the usage counter on failure, releasing both fence
references on error, and returning ERR_PTR(ret) instead of the
unsignaled fence.

[tomeu: Refactored error paths to use consolidated goto labels]

## Affected

- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 9ad8821573a36bcd18c84dbca3027802b0ea062f`
- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 7d6fa298c23495b805004f5f446497b661998fa5`
- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 9b2dedadf6a91ac3fc9fae268bb556a041222711`
- `Linux 6.18`

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89590.json)