---
cve: "CVE-2026-89439"
severity: "LOW"
cvss: 3.1
epss: "0.2%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-11 20:19:24"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T20:03:04+02:00"
---

# CVE-2026-89439

> 3.1 LOW

## Beschreibung

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

platform/x86: ISST: Add a NULL check for sst_inst[]

To be consistent with other places, add a NULL check for failed socket
loading by checking isst_common.sst_inst[].

## Patch verfügbar (OSV)

- Kernel ≥ 6.12.109
- Kernel ≥ 6.18.50
- Kernel ≥ 7.2.4

## Referenzen

- <https://git.kernel.org/stable/c/49a95fe1f64f41c2e8959e525aefdb10f23b293e>
- <https://git.kernel.org/stable/c/c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa>
- <https://git.kernel.org/stable/c/ef7975af15126dd70ace519da7bb33f2848b9064>
- <https://git.kernel.org/stable/c/3de2776e9d7073765c10c2326c2bda5926811ea6>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-89439) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_