Linux Kernel up to 7.2.5 powerplay drm/amdgpu/pm/powerplay vddInd/vddcInd memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$5k-$25k0.39-

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.2.5. It has been declared as very critical. Affected is an unknown function of the file drm/amdgpu/pm/powerplay of the component powerplay. Such manipulation of the argument vddInd/vddcInd leads to memory corruption. This vulnerability is uniquely identified as CVE-2026-93178. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Linux Kernel up to 7.2.5. Affected by this issue is some unknown processing of the file drm/amdgpu/pm/powerplay of the component powerplay. The manipulation of the argument vddInd/vddcInd with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-93178 since 09/17/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/18/2026).

Upgrading to version 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b/6f08c001fa6e8212930d694540ae8d9d6d3fb58a/ce0d8e72836c9d3710a160ad848b0f1d096075e3/745297208d31222f916cc04da313cb737b997935/f925d317d84d401d642e537ea18ee12f67cb6983/8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a/1664327ce797e09e387dc10cbbaa5b8d76558d2c/3a8a05477cda6c8293e2b629495b42981dcaba32 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.270/5.15.221/6.1.188/6.6.157/6.12.110/6.18.52/7.2.6/7.3-rc1
Patch: d9ef085114d1e3c2c1f869c0bdb275a7b358ce8b/6f08c001fa6e8212930d694540ae8d9d6d3fb58a/ce0d8e72836c9d3710a160ad848b0f1d096075e3/745297208d31222f916cc04da313cb737b997935/f925d317d84d401d642e537ea18ee12f67cb6983/8a3db9f593b643904c6cc6d8a3f211c84ca6cf8a/1664327ce797e09e387dc10cbbaa5b8d76558d2c/3a8a05477cda6c8293e2b629495b42981dcaba32

Timelineinfo

09/17/2026 CVE reserved
09/17/2026 +0 days VulDB entry created
09/18/2026 +0 days Advisory disclosed
09/18/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-93178 (🔒)
GCVE (CVE): GCVE-0-2026-93178
GCVE (VulDB): GCVE-100-407252

Entryinfo

Created: 09/18/2026 00:05
Changes: 09/18/2026 00:05 (60)
Complete: 🔍
Cache ID: 216::103

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