VulnerabilityPublished 17 Sep 2026Updated 30 Oct 2026

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

Source GCVE Database

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Authoritative record:CVE-2026-93179· Medium

Not known to be exploited · fixed in ed84504713e8357f33693f638fda68fc98f0c9d2 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 18:06 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in ed84504713e8357f33693f638fda68fc98f0c9d2, e5b3c485ef911358752a3abbf3705d05d0eafd7a, 86644d37d2b388854b2cfd4d4f57b3d84a57154b +5

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-636p-hq8h-v2cp

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ c82baa28184356a75c0157129f88af42b2e7b695, < ed84504713e8357f33693f638fda68fc98f0c9d2	Fixed in ed84504713e8357f33693f638fda68fc98f0c9d2
LinuxLinux	Affected ≥ c82baa28184356a75c0157129f88af42b2e7b695, < e5b3c485ef911358752a3abbf3705d05d0eafd7a	Fixed in e5b3c485ef911358752a3abbf3705d05d0eafd7a
LinuxLinux	Affected ≥ c82baa28184356a75c0157129f88af42b2e7b695, < 86644d37d2b388854b2cfd4d4f57b3d84a57154b	Fixed in 86644d37d2b388854b2cfd4d4f57b3d84a57154b
LinuxLinux	Affected ≥ c82baa28184356a75c0157129f88af42b2e7b695, < 574af7c61f2bed37baa3b60669e428d24d2c9ae8	Fixed in 574af7c61f2bed37baa3b60669e428d24d2c9ae8
LinuxLinux	Affected ≥ c82baa28184356a75c0157129f88af42b2e7b695, < 203ffe648948ca3c2f55b21118945a7a6d0884aa	Fixed in 203ffe648948ca3c2f55b21118945a7a6d0884aa
LinuxLinux	Affected ≥ c82baa28184356a75c0157129f88af42b2e7b695, < 83c680de6d41d627c077dedb24f89d9e5be0e2a2	Fixed in 83c680de6d41d627c077dedb24f89d9e5be0e2a2

AI-suggested

A fix has been implemented in the Linux kernel to reject malformed voltage objects that cause zero-stride loops or out-of-bounds reads. Users should update to the patched kernel version once available. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel's AMD powerplay driver was fixed to prevent an infinite loop and out-of-bounds (OOB) heap read caused by malformed VoltageObjectInfo tables in the VBIOS. The flaw involved zero-stride loops and improper validation of voltage object sizes, which could lead to memory safety issues.

References

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