---
cve: "CVE-2026-80553"
severity: "HIGH"
cvss: 8.8
epss: "28.1%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-08-26 15:17:09"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-04T09:15:25+02:00"
---

# CVE-2026-80553

> 8.8 HIGH

## Beschreibung

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

s390/vfio_ccw: Cancel existing workqueues

The initialization of the io_work and crw_work workqueues begs the
question of whether they should be un-initialized. Add the corresponding
cleanup tags in _release_dev to ensure work isn't dispatched after
the private struct is free'd.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.267
- Kernel ≥ 5.15.218
- Kernel ≥ 6.1.185
- Kernel ≥ 6.6.153
- Kernel ≥ 6.12.105
- Kernel ≥ 6.18.46
- Kernel ≥ 7.1.10

## Referenzen

- <https://git.kernel.org/stable/c/7492ca2d0c5d59add01e267be9f5a6eeb8076fd7>
- <https://git.kernel.org/stable/c/77f5e888d2e607a0b3141fb95091ad6ef1cca9a2>
- <https://git.kernel.org/stable/c/79c60b2c61105368dcc8444eb45847e21734f7c4>
- <https://git.kernel.org/stable/c/87d569cb35a541b31a184faf982540694d4c9a89>
- <https://git.kernel.org/stable/c/b7ae0f7993867d009a4b554fc1d6d451c10580a0>
- <https://git.kernel.org/stable/c/b94b28c1f0fae53b2f2d6180ae6442c9a1558f67>
- <https://git.kernel.org/stable/c/dc47a98abe6714577a25224534dbd356051097a3>
- <https://git.kernel.org/stable/c/e868ea8be0bc88c6982f48ecf3259d98afd884ae>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-80553) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_