CVE-2026-93178 PUBLISHED

drm/amdgpu/pm/powerplay: bounds-check voltage index in SMU7 lookup

Assigner: Linux
Reserved: 17.09.2026 Published: 17.09.2026 Updated: 17.09.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b (excl.)
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to 6f08c001fa6e8212930d694540ae8d9d6d3fb58a (excl.)
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to ce0d8e72836c9d3710a160ad848b0f1d096075e3 (excl.)
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to 745297208d31222f916cc04da313cb737b997935 (excl.)
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to f925d317d84d401d642e537ea18ee12f67cb6983 (excl.)
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to 8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a (excl.)
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to 1664327ce797e09e387dc10cbbaa5b8d76558d2c (excl.)
  • affected from c82baa28184356a75c0157129f88af42b2e7b695 to 3a8a05477cda6c8293e2b629495b42981dcaba32 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 4.5 is affected
  • unaffected from 0 to 4.5 (excl.)
  • unaffected from 5.10.270 to 5.10.* (incl.)
  • unaffected from 5.15.221 to 5.15.* (incl.)
  • unaffected from 6.1.188 to 6.1.* (incl.)
  • unaffected from 6.6.157 to 6.6.* (incl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.52 to 6.18.* (incl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References