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CVE-2026-93178

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

HIGH
7.1
CVSS Score
Published: September 17, 2026 at 04:12 PM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
4.5c82baa28184356a75c0157129f88af42b2e7b695
Vendor states this is fixed in 1664327ce797e09e387dc10cbbaa5b8d76558d2c (fixed)
Vendor states this is fixed in 3a8a05477cda6c8293e2b629495b42981dcaba32 (fixed)
Vendor states this is fixed in 6f08c001fa6e8212930d694540ae8d9d6d3fb58a (fixed)
Vendor states this is fixed in 745297208d31222f916cc04da313cb737b997935 (fixed)
Vendor states this is fixed in 8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a (fixed)
Vendor states this is fixed in ce0d8e72836c9d3710a160ad848b0f1d096075e3 (fixed)
Vendor states this is fixed in d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b (fixed)
Vendor states this is fixed in f925d317d84d401d642e537ea18ee12f67cb6983 (fixed)
Vendor states this is fixed in 4.5 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b
Source: cverecord
https://git.kernel.org/stable/c/6f08c001fa6e8212930d694540ae8d9d6d3fb58a
Source: cverecord
https://git.kernel.org/stable/c/ce0d8e72836c9d3710a160ad848b0f1d096075e3
Source: cverecord
https://git.kernel.org/stable/c/745297208d31222f916cc04da313cb737b997935
Source: cverecord
https://git.kernel.org/stable/c/f925d317d84d401d642e537ea18ee12f67cb6983
Source: cverecord
https://git.kernel.org/stable/c/8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a
Source: cverecord
https://git.kernel.org/stable/c/1664327ce797e09e387dc10cbbaa5b8d76558d2c
Source: cverecord
https://git.kernel.org/stable/c/3a8a05477cda6c8293e2b629495b42981dcaba32

CVSS

7.1HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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