What’s Vulnerable › Vulnerabilities

CVE-2026-93179: drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/powerplay: fix VoltageObjectInfo zero-stride loop and OOB read Reject voltage objects whose usSize is smaller than the header or would advance the cursor past the table end, preventing an infinite loop or heap OOB read when the VBIOS supplies a malformed VoltageObjectInfo table.

Affected products

• Linux: 4.5 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0a6c9b3801903b6db91f3cbf148646b501dbded3
• https://git.kernel.org/stable/c/203ffe648948ca3c2f55b21118945a7a6d0884aa
• https://git.kernel.org/stable/c/574af7c61f2bed37baa3b60669e428d24d2c9ae8
• https://git.kernel.org/stable/c/5d3cc8e388464f485d0944b87b8f9426e637d082
• https://git.kernel.org/stable/c/83c680de6d41d627c077dedb24f89d9e5be0e2a2
• https://git.kernel.org/stable/c/86644d37d2b388854b2cfd4d4f57b3d84a57154b
• https://git.kernel.org/stable/c/e5b3c485ef911358752a3abbf3705d05d0eafd7a
• https://git.kernel.org/stable/c/ed84504713e8357f33693f638fda68fc98f0c9d2

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