CVE-2025-39692
Not scored
smb: server: split ksmbd_rdma_stop_listening() out of ksmbd_rdma_destroy()
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.
Exploit probability
0.2%
Published
September 5, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-39692
View original source
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.
05 / REFERENCES
Further evidence
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39692.json
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-39692