CVE-2025-39692
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-05

Last updated on: 2025-11-03

Assigner: kernel.org

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.
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Meta Information
Published
2025-09-05
Last Modified
2025-11-03
Generated
2026-06-16
AI Q&A
2025-09-05
EPSS Evaluated
2026-06-15
NVD
CVE-2025-39692
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel 6.1.153
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel relates to the SMB server component where the function ksmbd_rdma_stop_listening() was not properly separated from ksmbd_rdma_destroy(). The issue arises because destroy_workqueue(smb_direct_wq) was called before stop_sessions(), which can lead to existing connections attempting to use smb_direct_wq as a NULL pointer, potentially causing errors or crashes.

Impact Analysis

The vulnerability can cause existing SMB connections to attempt to use a NULL pointer for smb_direct_wq, which may result in system instability, crashes, or denial of service in the SMB server functionality on the Linux kernel.

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