---
cve: "CVE-2026-53168"
severity: "LOW"
cvss: 3.1
epss: "12%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-06-25 09:16:34"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T11:29:44+02:00"
---

# CVE-2026-53168

> 3.1 LOW

## Beschreibung

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

fuse: reject fuse_notify() pagecache ops on directories

The operations FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE allow the
FUSE daemon to actively write/read pagecache contents.

For directories with FOPEN_CACHE_DIR, the pagecache is used as
kernel-internal cache storage, and userspace is not supposed to have
direct access to this cache - in particular, fuse_parse_cache() will hit
WARN_ON() if the cache contains bogus data.

Reject FUSE_NOTIFY_STORE and FUSE_NOTIFY_RETRIEVE on anything other than
regular files with -EINVAL.

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.259
- Kernel ≥ 5.15.210
- Kernel ≥ 6.1.176
- Kernel ≥ 6.6.143
- Kernel ≥ 6.12.94
- Kernel ≥ 6.18.36
- Kernel ≥ 7.0.13

## Referenzen

- <https://git.kernel.org/stable/c/15487f98863dc7156ed43c5be26d478beb82ba35>
- <https://git.kernel.org/stable/c/bd23fa0c16c5c86e5b7713224ffbb87d9db81cca>
- <https://git.kernel.org/stable/c/9dbf1b2fadfc6c40805631d8a8276d1639fc9ab6>
- <https://git.kernel.org/stable/c/dd92773d4d9cea010474eb08a5133c14ff6ab53a>
- <https://git.kernel.org/stable/c/99c317d7f8b7bbf3de16d20a01f363e390114cea>
- <https://git.kernel.org/stable/c/12df4cfa738aefff21756728e91056d7defb0fe6>
- <https://git.kernel.org/stable/c/e692f0cb86204dcdb9dddc0b355407eda6394a67>
- <https://git.kernel.org/stable/c/9c954499d43aefac01c5dfb57a82b13d2dcf4b94>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53168) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_