---
cve: "CVE-2026-53217"
severity: "HIGH"
cvss: 8.6
epss: "38%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-06-25 09:16:39"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T10:56:52+02:00"
---

# CVE-2026-53217

> 8.6 HIGH

## Beschreibung

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

net: mvpp2: sync RX data at the hardware packet offset

mvpp2 programs the RX queue packet offset, so hardware writes received
data at dma_addr + MVPP2_SKB_HEADROOM. The current CPU sync starts at
dma_addr and only covers rx_bytes + MVPP2_MH_SIZE bytes, which syncs the
unused headroom and misses the same number of bytes at the packet tail.

On non-coherent DMA systems this can leave the CPU reading stale cache
contents for the end of the received frame.

Use dma_sync_single_range_for_cpu() with MVPP2_SKB_HEADROOM as the range
offset so the sync covers the Marvell header and packet data actually
written by hardware.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.259
- Kernel ≥ 5.15.210
- Kernel ≥ 6.1.176
- Kernel ≥ 6.6.143
- Kernel ≥ 6.12.94
- Kernel ≥ 6.18.36
- Kernel ≥ 7.0.13

## Referenzen

- <https://git.kernel.org/stable/c/60412bdd1b2576659eac23a23d2d9ff96228a643>
- <https://git.kernel.org/stable/c/19f8bc139e9b149d1e5bf75ae761d1bb8dd3e7d8>
- <https://git.kernel.org/stable/c/a3ad9b5767c89531fc7dae951b51b0933dcf7051>
- <https://git.kernel.org/stable/c/bede0f481b9137d73d1cf64309cbe4b94818a5d6>
- <https://git.kernel.org/stable/c/23548007b3c66d628fc7d6b80d1e23be04ea10d9>
- <https://git.kernel.org/stable/c/a13199fa224e9f776f4005d5037df03aa9ea8f37>
- <https://git.kernel.org/stable/c/e302206ad84a407a7e5f3f6fe767ff5efaace689>
- <https://git.kernel.org/stable/c/180235600934bef6add3be637c296d6cf3272e67>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53217) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_