CVE-2026-93178
Published Sep 17, 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.
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References
Other 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
Frequently Asked Questions
What is CVE-2026-93178? +
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.
How do I check if I'm vulnerable to CVE-2026-93178? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.