# CVE-2026-31410: ksmbd: use volume UUID in FS_OBJECT_ID_INFORMATION

CVE-2026-31410 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-31410, released April 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-31410
- Priority: Routine
- CVSS: 6.5 (Moderate)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 6, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31410

## Description

In the Linux kernel, the following vulnerability has been resolved:  ksmbd: use volume UUID in FS_OBJECT_ID_INFORMATION  Use sb->s_uuid for a proper volume identifier as the primary choice. For filesystems that do not provide a UUID, fall back to stfs.f_fsid obtained from vfs_statfs().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2026-31410](https://patchblox.com/security/data/fix/linux/debian-cve-2026-31410.md) | Apr 6, 2026 |
| Linux | linux Debian 14 | 6.19.10-1 | [DEBIAN-CVE-2026-31410](https://patchblox.com/security/data/fix/linux/debian-cve-2026-31410.md) | Apr 6, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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