CVE-2026-68095

Description

A flaw was found in fuse-uring in the Linux kernel. A race condition exists between the registration of an I/O operation and the abortion of a FUSE connection. This can be triggered by a local attacker or a malicious application. This flaw can cause the unmount thread to hang indefinitely, leading to a denial of service (DoS) and resource leaks.

Understanding the Weakness (CWE)

Integrity,Other

Technical Impact: Alter Execution Logic; Unexpected State

The attacker can gain access to otherwise unauthorized resources.

Integrity,Other

Technical Impact: Modify Application Data; Modify Files or Directories; Modify Memory; Other

Race conditions such as this kind may be employed to gain read or write access to resources which are not normally readable or writable by the user in question.

Integrity,Other

Technical Impact: Other

The resource in question, or other resources (through the corrupted one), may be changed in undesirable ways by a malicious user.

Non-Repudiation

Technical Impact: Hide Activities

If a file or other resource is written in this method, as opposed to in a valid way, logging of the activity may not occur.

Non-Repudiation,Other

Technical Impact: Other

In some cases it may be possible to delete files a malicious user might not otherwise have access to, such as log files.

Other

Technical Impact: Unexpected State

The product may perform invalid actions when the resource is in an unexpected state.

Frequently Asked Questions

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