🛡️ CVE-2025-40080 — kernel
Description
nbd: restrict sockets to TCP and UDP
In the Linux kernel, the following vulnerability has been resolved:
nbd: restrict sockets to TCP and UDP
Recently, syzbot started to abuse NBD with all kinds of sockets.
Commit cf1b2326b734 ("nbd: verify socket is supported during setup")
made sure the socket supported a shutdown() method.
Explicitely accept TCP and UNIX stream sockets.
Affected software
CVE-2025-40080 is recorded against 2 packages.
- kernel (from 6.13.0 up to 6.17.3)
- unknown
Timeline and source
Published on 28 October 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
cert-portal.siemens.com (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)
CVE-2025-40080 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| kernel | 6.13.0 | 6.17.3 |
| unknown | — | — |
References
Similar Threats
- Unknown ALBA-2026:39332
- Unknown ALSA-2023:1703
- Unknown ALSA-2023:1566
- Unknown ALSA-2023:1470
- Unknown ALSA-2023:0951
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