---
cve: "CVE-2022-48816"
severity: "HIGH"
cvss: 7.8
epss: "29%"
vendor: "Linux"
kev: false
exploited: false
published: "2024-07-16 12:15:05"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T19:06:36+02:00"
---

# CVE-2022-48816

> 7.8 HIGH

## Beschreibung

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

SUNRPC: lock against ->sock changing during sysfs read

->sock can be set to NULL asynchronously unless ->recv_mutex is held.
So it is important to hold that mutex.  Otherwise a sysfs read can
trigger an oops.
Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before
handling sysfs reads") appears to attempt to fix this problem, but it
only narrows the race window.

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- Kernel ≥ 5.15.209
- Kernel ≥ 5.16.10

## Referenzen

- <https://git.kernel.org/stable/c/fdc42287ae3f8a35cc2098307f52d7864b4bc8ed>
- <https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07>
- <https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-48816) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_