Medium · published September 25, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 6.16, < 7.2.7 | 7.2.7 |
| linux/linux_kernel | all versions | — |