---
cve: "CVE-2026-89817"
severity: "LOW"
cvss: 3.1
epss: "0.2%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-16 11:16:46"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T15:43:55+02:00"
---

# CVE-2026-89817

> 3.1 LOW

## Beschreibung

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

drm/gud: NUL-terminate TV mode names read from the device

gud_connector_add_tv_mode() reads a buffer of fixed-size mode names from
the USB device and passes pointers into it to
drm_mode_create_tv_properties_legacy(), which calls strlen() on each one.
Nothing guarantees the device NUL-terminates a name, so strlen() can run
past the end of a slot and, for the last mode, past the end of the
allocation.

Terminate each name at the end of its slot before use.

## Patch verfügbar (OSV)

- Kernel ≥ 5.15.221
- Kernel ≥ 6.1.188
- Kernel ≥ 6.6.157
- Kernel ≥ 6.12.110
- Kernel ≥ 6.18.51
- Kernel ≥ 7.2.5

## Referenzen

- <https://git.kernel.org/stable/c/08c8ec28547987e55a90c662f8795e05c2925498>
- <https://git.kernel.org/stable/c/9096edfd6f2edbc79612b482547e0972edbcfe4b>
- <https://git.kernel.org/stable/c/89210cb5ff8fdbe055c97ac688be2268f6c815ae>
- <https://git.kernel.org/stable/c/d0f3312f7800eb0e00d1264f66104c788f43dd69>
- <https://git.kernel.org/stable/c/b86438a5c6b0250ccb07dd380184d1e70e0dea6c>
- <https://git.kernel.org/stable/c/6ea61f1d4cbaa0db937e31bffc041fb8afeacf52>
- <https://git.kernel.org/stable/c/500cb24cd61bad8a2747ddfc49b7034899c82d94>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-89817) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_