# CVE-2026-98153: nvme: fix racy access to FDP placement id array

CVE-2026-98153 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98153 (version 7.2.7-1), released October 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-98153
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0008
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 25, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98153

## Description

In the Linux kernel, the following vulnerability has been resolved:  nvme: fix racy access to FDP placement id array  nvme_query_fdp_info() is called per-path and therefore prone to races.  It populates head->nr_plids/head->plids for fdp registration. But nothing protects that pair from concurrent access - two paths scanning the same namespace can race to populate it.  Avoid the race by moving this initialization work to nvme_alloc_ns_head() which is called once per shared namespace.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.7-1 | [DEBIAN-CVE-2026-98153](https://patchblox.com/security/data/fix/linux/debian-cve-2026-98153.md) | Oct 2, 2026 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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