# CVE-2026-89590: linux: In the Linux kernel, the following vulnerability has been resolved:  accel/rocket: Fix error path handling in rocket_...

CVE-2026-89590 is fixed in linux on 1 platform by DEBIAN-CVE-2026-89590 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-89590
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 11, 2026

## Description

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]

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-89590](https://patchblox.com/security/data/fix/linux/debian-cve-2026-89590.md) | Sep 23, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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