CVE-2026-31693

Updated on 30 Apr 2026

Severity

8.7 High severity

Details

CVSS score
8.7

Overview

About vulnerability

In the Linux kernel, the following vulnerability has been resolved: cifs: some missing initializations on replay In several places in the code, we have a label to signify the start of the code where a request can be replayed if necessary. However, some of these places were missing the necessary reinitializations of certain local variables before replay. This change makes sure that these variables get initialized after the label. A flaw was found in the Linux kernel’s Common Internet File System (cifs) component. This vulnerability occurs when certain local variables are not properly reinitialized during the replay of a request. This oversight can lead to unexpected system behavior or instability, potentially resulting in a denial of service (DoS).

Details

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
Debian 13 Planned
Ubuntu 24.04 Planned
Ubuntu 24.04 AWS Planned