CVE-2025-38561

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to the fix

Description The issue relates to a race condition within the

Preauh HashValue()

function of the ksmbd component in the Linux kernel. This occurs when a client sends multiple session setup requests to ksmbd. The problem stems from incorrect synchronization when a shared resource is used. The vulnerability could allow an attacker to cause a denial of service. The vulnerable function is

Preauh HashValue()

. The

sess->Preauh HashValue

variable is involved in the race condition.

Recommendations Update the Linux Kernel to the version containing the fix for this vulnerability.