CVE-2026-93178
Published: September 19, 2026Last modified: October 6, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm/powerplay: bounds-check voltage index in SMU7 lookup vddInd and vddcInd fields from VBIOS-parsed tables are used to index into voltage lookup tables without a bounds check. Return -EINVAL when any index is out of range.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.189-r0) |
| 25 LTS | linux-lts | Fixed (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.53-r0) |
References
- https://git.kernel.org/stable/c/1664327ce797e09e387dc10cbbaa5b8d76558d2c
- https://git.kernel.org/stable/c/3a8a05477cda6c8293e2b629495b42981dcaba32
- https://git.kernel.org/stable/c/6f08c001fa6e8212930d694540ae8d9d6d3fb58a
- https://git.kernel.org/stable/c/745297208d31222f916cc04da313cb737b997935
- https://git.kernel.org/stable/c/8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a
- https://git.kernel.org/stable/c/ce0d8e72836c9d3710a160ad848b0f1d096075e3
- https://git.kernel.org/stable/c/d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b
- https://git.kernel.org/stable/c/f925d317d84d401d642e537ea18ee12f67cb6983