CVE-2026-93178 is a vulnerability in Linux Kernel
Published on September 17, 2026
drm/amdgpu/pm/powerplay: bounds-check voltage index in SMU7 lookup
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.
Products Associated with CVE-2026-93178
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Affected Versions
Linux:- Version c82baa28184356a75c0157129f88af42b2e7b695 and below d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b is affected.
- Version c82baa28184356a75c0157129f88af42b2e7b695 and below 6f08c001fa6e8212930d694540ae8d9d6d3fb58a is affected.
- Version c82baa28184356a75c0157129f88af42b2e7b695 and below ce0d8e72836c9d3710a160ad848b0f1d096075e3 is affected.
- Version c82baa28184356a75c0157129f88af42b2e7b695 and below 745297208d31222f916cc04da313cb737b997935 is affected.
- Version c82baa28184356a75c0157129f88af42b2e7b695 and below f925d317d84d401d642e537ea18ee12f67cb6983 is affected.
- Version c82baa28184356a75c0157129f88af42b2e7b695 and below 8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a is affected.
- Version c82baa28184356a75c0157129f88af42b2e7b695 and below 1664327ce797e09e387dc10cbbaa5b8d76558d2c is affected.
- Version c82baa28184356a75c0157129f88af42b2e7b695 and below 3a8a05477cda6c8293e2b629495b42981dcaba32 is affected.
- Version 4.5 is affected.
- Before 4.5 is unaffected.
- Version 5.10.270, <= 5.10.* is unaffected.
- Version 5.15.221, <= 5.15.* is unaffected.
- Version 6.1.188, <= 6.1.* is unaffected.
- Version 6.6.157, <= 6.6.* is unaffected.
- Version 6.12.110, <= 6.12.* is unaffected.
- Version 6.18.52, <= 6.18.* is unaffected.
- Version 7.2.6, <= 7.2.* is unaffected.
- Version 7.3-rc1, <= * is unaffected.