CVE-2023-53116
Published: May 6, 2025Last modified: May 6, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Not affected (6.6.89-r0) | |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/04c394208831d5e0d5cfee46722eb0f033cd4083
- https://git.kernel.org/stable/c/6173a77b7e9d3e202bdb9897b23f2a8afe7bf286
- https://git.kernel.org/stable/c/8ed9813871038b25a934b21ab76b5b7dbf44fc3a
- https://git.kernel.org/stable/c/a6317235da8aa7cb97529ebc8121cc2a4c4c437a
- https://git.kernel.org/stable/c/bcd535f07c58342302a2cd2bdd8894fe0872c8a9
- https://git.kernel.org/stable/c/e5d99b29012bbf0e86929403209723b2806500c1
- https://git.kernel.org/stable/c/f1d5888a5efe345b63c430b256e95acb0a475642
- https://git.kernel.org/stable/c/fafcb4b26393870c45462f9af6a48e581dbbcf7e