CVE-2025-38360

System hang via incorrect DSC power-domain gating

Published Jul 25, 2025 · Updated May 11, 2026

Denial of service in Linux's AMD display driver allows local users to hang the system by reaching an unsupported DSC/HUBP power state. The dcn35_calc_blocks_to_gate() and dcn35_calc_blocks_to_ungate() paths fail to keep every HUBP/DPP instance powered when the DSC and HUBP instance numbers differ. The reachable case requires local access, a sequential ONO ASIC, and a nonzero DSC instance; the documented consequence is a system hang.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Linux's AMD display driver allows local users to hang the system by reaching an unsupported DSC/HUBP power state. The dcn35_calc_blocks_to_gate() and dcn35_calc_blocks_to_ungate() paths fail to keep every HUBP/DPP instance powered when the DSC and HUBP instance numbers differ. The reachable case requires local access, a sequential ONO ASIC, and a nonzero DSC instance; the documented consequence is a system hang.

The record

CVE
CVE-2025-38360
Published
Jul 25, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 25, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.7
  2. Affected versionversion=6f8b7565cca4b745da54b7d5f26b7b9265a5f330 <0d57dd1765d311111d9885346108c4deeae1deb4
  3. Affected versionversion=6f8b7565cca4b745da54b7d5f26b7b9265a5f330 <3f4e601bc6765e4ff5f42cc2d00993c86b367f7e
  4. Affected versionversion=6f8b7565cca4b745da54b7d5f26b7b9265a5f330 <646442758910d13f9afc57f38bc0a537c3575390

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=6f8b7565cca4b745da54b7d5f26b7b9265a5f330 <0d57dd1765d311111d9885346108c4deeae1deb4; version=6f8b7565cca4b745da54b7d5f26b7b9265a5f330 <3f4e601bc6765e4ff5f42cc2d00993c86b367f7e; version=6f8b7565cca4b745da54b7d5f26b7b9265a5f330 <646442758910d13f9afc57f38bc0a537c3575390

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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