---
cve: "CVE-2026-80737"
severity: "HIGH"
cvss: 7.8
epss: "27.8%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-03 13:06:12"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T06:08:38+02:00"
---

# CVE-2026-80737

> 7.8 HIGH

## Beschreibung

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

serial: amba-pl011: synchronize DMA teardown

dmaengine_terminate_all() does not wait for a running callback, so the TX
callback can still touch the TX buffer after it is freed. The RX poll
timer reads the RX buffers without the port lock.

Switch to dmaengine_terminate_sync() and delete the RX timer before
freeing the buffers.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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 | Unverändert | good |
| 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 ≥ 6.6.154
- Kernel ≥ 6.12.106
- Kernel ≥ 6.18.45
- Kernel ≥ 7.1.9

## Referenzen

- <https://git.kernel.org/stable/c/440915499231e9db1c361aa45bb702e8fd3b4a32>
- <https://git.kernel.org/stable/c/44bd0ecc3444882d08ecfbc2b2418d2f463d3186>
- <https://git.kernel.org/stable/c/5974cb66681eac367107b05924744d7e3b49d41c>
- <https://git.kernel.org/stable/c/9f6989e477f03a4721d34bb4b09b17accd40283e>
- <https://git.kernel.org/stable/c/a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e>
- <https://git.kernel.org/stable/c/c8c8e895f65fbf71ea6224e27cf8dab91b776e0d>
- <https://git.kernel.org/stable/c/f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03>
- <https://git.kernel.org/stable/c/fdfb46c387241b4eddd36d746793764413285913>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-80737) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_