CVE-2026-23360
Memory Leak in Linux Kernel NVMe Admin Queue on Reset
Publication date: 2026-03-25
Last updated on: 2026-04-24
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | 6.18 |
| linux | linux_kernel | From 6.18.1 (inc) to 6.18.17 (exc) |
| linux | linux_kernel | From 6.19 (inc) to 6.19.7 (exc) |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | From 6.12.62 (inc) to 6.12.77 (exc) |
| linux | linux_kernel | From 6.17.12 (inc) to 6.18 (exc) |
| linux | linux_kernel | From 6.6.120 (inc) to 6.6.131 (exc) |
| linux | linux_kernel | 6.1.167 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-401 | The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Linux kernel's NVMe driver related to the handling of the admin queue during a controller reset.
Specifically, when the function nvme_alloc_admin_tag_set() is called during a controller reset, a previous admin queue may still be present but not properly released.
Failing to release the old admin queue before allocating a new one causes the old queue to be orphaned, leading to a resource leak.
This issue was introduced as a regression by a previous commit that aimed to fix the admin request queue lifetime.
How can this vulnerability impact me? :
The vulnerability can lead to a resource leak in the Linux kernel's NVMe driver during controller resets.
This resource leak may cause increased memory usage or depletion of kernel resources over time, potentially leading to degraded system performance or instability.
In environments with frequent NVMe controller resets, this could result in system crashes or failures if resources are exhausted.