---
cve: "CVE-2026-89838"
severity: "HIGH"
cvss: 7.1
epss: "0.2%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-16 11:16:50"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T16:00:53+02:00"
---

# CVE-2026-89838

> 7.1 HIGH

## Beschreibung

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

f2fs: limit recovery filename logging to stored length

F2FS stores recovery filenames as a length plus a fixed-size i_name
buffer.  The buffer is not NUL-terminated, but recover_inode() and
recover_dentry() print it with %s.

For a 255-byte filename, recovery logging can read past i_name into the
following raw inode fields.

Print the name with a precision bounded by i_namelen and F2FS_NAME_LEN.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 7.2.5

## Referenzen

- <https://git.kernel.org/stable/c/317d32e1a8deaf1c01c388badc667334c39e62ca>
- <https://git.kernel.org/stable/c/01027b2fcb74dade59fb833b51023f6593b6a9a2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-89838) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_