PT-2026-6179 · Fuse+1 · Fuse+1

CVE-2026-23109

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Published

2026-01-01

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Updated

2026-08-21

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A flaw exists in the Linux kernel’s fs/writeback functionality, specifically within the wait sb inodes() function. The issue involves skipping AS NO DATA INTEGRITY mappings, which can cause indefinite waiting if a faulty FUSE server does not respond to write requests. This restores prior behavior where sync operations are no-ops for FUSE. The vulnerability affects the FUSE filesystem.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Infinite Loop

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Weakness Enumeration

CWE-835

Related Identifiers

CVE-2026-23109
USN-8570-1
USN-8570-2
USN-8594-1
USN-8604-1
USN-8605-1
USN-8669-1

Affected Products

Fuse
Linux Kernel