---
cve: "CVE-2026-80536"
severity: "HIGH"
cvss: 8.4
epss: "26.4%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-08-26 15:17:07"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T11:04:42+02:00"
---

# CVE-2026-80536

> 8.4 HIGH

## Beschreibung

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

xfs: bounds-check buffer log item's dirty bitmap

xlog_recover_do_reg_buffer() replays each dirty region described by a
buffer log item's bitmap into the buffer read for that item:

	memcpy(xfs_buf_offset(bp, (uint)bit ri_buf[i].iov_base,
		nbits

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| 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 ≥ 5.10.267
- Kernel ≥ 5.15.218
- Kernel ≥ 6.1.185
- Kernel ≥ 6.6.154
- Kernel ≥ 6.12.106
- Kernel ≥ 6.18.46
- Kernel ≥ 7.1.10

## Referenzen

- <https://git.kernel.org/stable/c/7e32d4eebae6ca24f8a673c107fd7eca1f47afc2>
- <https://git.kernel.org/stable/c/813f8136a2ce1fee266d02a7df73db6e8a541604>
- <https://git.kernel.org/stable/c/acb4e26295e7f0e685815a3fd3d70bd8329cefa1>
- <https://git.kernel.org/stable/c/b7528b42813f02724a78fce1da24d69d1bfc4d38>
- <https://git.kernel.org/stable/c/edaf5b6bd625356893da20d69a259b34a9de2694>
- <https://git.kernel.org/stable/c/f3859c35a4fbc1c1c58431f684f808e43696891d>
- <https://git.kernel.org/stable/c/f7b5fa83e2c192be922121b764415fa8c7549ea1>
- <https://git.kernel.org/stable/c/f8288214459ead7e87d26e5822f62c14a4f2ed6b>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-80536) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_