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CVE-2025-39692
smb: server: split ksmbd_rdma_stop_listening() out of ksmbd_rdma_destroy()
Description

In the Linux kernel, the following vulnerability has been resolved: smb: server: split ksmbd_rdma_stop_listening() out of ksmbd_rdma_destroy() We can't call destroy_workqueue(smb_direct_wq); before stop_sessions()! Otherwise already existing connections try to use smb_direct_wq as a NULL pointer.

INFO

Published Date :

Sept. 5, 2025, 6:15 p.m.

Last Modified :

Sept. 5, 2025, 6:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-39692 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Fix race condition by ensuring workqueue is stopped before destroying it.
  • Stop all existing connections before destroying the workqueue.
  • Ensure workqueue is stopped before destruction in the code.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-39692.

URL Resource
https://git.kernel.org/stable/c/003e6a3150299f681f34cb189aa068018cef6a45
https://git.kernel.org/stable/c/212eb86f75b4d7b82f3d94aed95ba61103bccb93
https://git.kernel.org/stable/c/524e90e58a267dad11e23351d9e4b1f941490976
https://git.kernel.org/stable/c/bac7b996d42e458a94578f4227795a0d4deef6fa
https://git.kernel.org/stable/c/e41e33400516702427603f8fbbec43c91ede09c0
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-39692 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-39692 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-39692 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-39692 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 05, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: smb: server: split ksmbd_rdma_stop_listening() out of ksmbd_rdma_destroy() We can't call destroy_workqueue(smb_direct_wq); before stop_sessions()! Otherwise already existing connections try to use smb_direct_wq as a NULL pointer.
    Added Reference https://git.kernel.org/stable/c/003e6a3150299f681f34cb189aa068018cef6a45
    Added Reference https://git.kernel.org/stable/c/212eb86f75b4d7b82f3d94aed95ba61103bccb93
    Added Reference https://git.kernel.org/stable/c/524e90e58a267dad11e23351d9e4b1f941490976
    Added Reference https://git.kernel.org/stable/c/bac7b996d42e458a94578f4227795a0d4deef6fa
    Added Reference https://git.kernel.org/stable/c/e41e33400516702427603f8fbbec43c91ede09c0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.