---
cve: "CVE-2026-89729"
severity: "HIGH"
cvss: 8.8
epss: "20.2%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-11 20:20:03"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T09:32:29+02:00"
---

# CVE-2026-89729

> 8.8 HIGH

## Beschreibung

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

HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature

sensor_hub_get_feature() clamps its return value to the caller's buffer
size, but the copy loop still copies field->report_size / 8 bytes for
each report value. A malicious HID descriptor can advertise a large
feature field size while an IIO caller supplies a small stack buffer,
such as a single s32, causing an out-of-bounds write.

HID core stores parsed report values in __s32 slots and clamps extracted
values to 32 bits. Reject feature fields that require more than one slot
per value, guard the total byte count calculation, and clamp each
per-value copy to the remaining caller buffer.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.270
- Kernel ≥ 5.15.221
- Kernel ≥ 6.1.188
- Kernel ≥ 6.6.157
- Kernel ≥ 6.12.109
- Kernel ≥ 6.18.50
- Kernel ≥ 7.2.4

## Referenzen

- <https://git.kernel.org/stable/c/1c0463f0f028801a933f090cd2695f132635b374>
- <https://git.kernel.org/stable/c/4145aa149a32e4b35d5d47e380d0c6c438b4e6fe>
- <https://git.kernel.org/stable/c/8bf8aaf2f74de64f801eb30bc38927dba1f8e40a>
- <https://git.kernel.org/stable/c/9f43499ce6458a572b781f6bb46c464ab59fa825>
- <https://git.kernel.org/stable/c/bc3d72c44bff17688dc5f3e5132a53b51dae0f04>
- <https://git.kernel.org/stable/c/c5c60260a07e627084e792ea959ab468ccfa4d50>
- <https://git.kernel.org/stable/c/c92693f3ed099401d0383ef35ca1fe1e6ba033de>
- <https://git.kernel.org/stable/c/fa95b14198b6c8ea721b4784f466d3c2c2bac83a>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-89729) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_