# CVE-2026-63793: ntfs: serialize volume label accesses

CVE-2026-63793 is fixed in linux on 1 platform by DEBIAN-CVE-2026-63793 (version 7.1.3-1), released July 20, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-63793
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 19, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63793

## Description

In the Linux kernel, the following vulnerability has been resolved:  ntfs: serialize volume label accesses  Protect vol->volume_label with a mutex and snaphost the label before copy_to_user. This prevent a use-after-free when FS_IOC_SETFSLABEL replaces the vol->volume_label and FS_IOC_GETTSLABEL reads it concurrently.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.1.3-1 | [DEBIAN-CVE-2026-63793](https://patchblox.com/security/data/fix/linux/debian-cve-2026-63793.md) | Jul 20, 2026 |

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Data as of 2026-11-10T01:44:33Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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