CVE-2023-53116
Critical
Description
In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after free of the request pointer when percpu_ref_put() is called in nvmet_req_complete(). Avoid such problem by using a local variable to save the sq pointer before calling __nvmet_req_complete(), thus avoiding dereferencing the req pointer after that function call.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux Kernel
PublishedMay 2, 2025
First seenMay 2, 2025
How to fix
Update
- linux linux_kernel4.14.311, 4.19.279, 5.4.238, 5.10.176, 5.15.104, 6.1.21, 6.2.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.8 ≤ v < 4.14.311, 4.15 ≤ v < 4.19.279, 4.20 ≤ v < 5.4.238, 5.5 ≤ v < 5.10.176, 5.11 ≤ v < 5.15.104, 5.16 ≤ v < 6.1.21, 6.2 ≤ v < 6.2.8, 6.3 | 4.14.311, 4.19.279, 5.4.238, 5.10.176, 5.15.104, 6.1.21, 6.2.8 |
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