CVE-2025-38098

Local service interruption via writeback connector miscast

Published Jul 3, 2025 · Updated Aug 5, 2026

Type confusion in the AMD display driver in affected Linux kernel releases allows local users to interrupt service via a writeback connector. create_validate_stream_for_sink treats a drm_wb_connector as an amdgpu_dm_connector and accesses fields through the incompatible connector representation. Low-privileged local access and the affected AMD display writeback path are required; the public record does not specify the resulting failure mode beyond availability loss.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in the AMD display driver in affected Linux kernel releases allows local users to interrupt service via a writeback connector. create_validate_stream_for_sink treats a drm_wb_connector as an amdgpu_dm_connector and accesses fields through the incompatible connector representation. Low-privileged local access and the affected AMD display writeback path are required; the public record does not specify the resulting failure mode beyond availability loss.

The record

CVE
CVE-2025-38098
Published
Jul 3, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0fe85301b95077ac4fa4a91909d38b7341e81187
  2. Affected versionversion=6.7.2 <6.8
  3. Affected versionversion=6.8
  4. Affected versionversion=dbf5d3d02987faa0eec3710dd687cd912362d7b5 <18ca68f7c657721583a75cab01f0d0d2ec63a6c9
  5. Affected versionversion=dbf5d3d02987faa0eec3710dd687cd912362d7b5 <b14e726d57f61085485f107a6203c50a09695abd
  6. Affected versionversion=dbf5d3d02987faa0eec3710dd687cd912362d7b5 <cbf4890c6f28fb1ad733e14613fbd33c2004bced

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0fe85301b95077ac4fa4a91909d38b7341e81187; version=6.7.2 <6.8; version=6.8; version=dbf5d3d02987faa0eec3710dd687cd912362d7b5 <18ca68f7c657721583a75cab01f0d0d2ec63a6c9; version=dbf5d3d02987faa0eec3710dd687cd912362d7b5 <b14e726d57f61085485f107a6203c50a09695abd; version=dbf5d3d02987faa0eec3710dd687cd912362d7b5 <cbf4890c6f28fb1ad733e14613fbd33c2004bced

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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