CVE-2026-98148Public exploitHinoki check available

Kernel warning via unchecked USB rotation mask

Published Sep 25, 2026 · Updated Sep 25, 2026

Improper input validation in the Linux GUD driver allows physically proximate attackers to trigger a kernel warning via a crafted USB display. gud_plane_add_properties passes a device-reported rotation bitmask to drm_plane_create_rotation_property without requiring GUD_ROTATION_0, violating the helper's supported-mask invariant. Reachability requires a GUD USB peripheral that omits the bit; the demonstrated result is a WARN_ON during device probing, not a kernel crash.

CVSS severityUnavailable
Unscored
EPSS probability0.15%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper input validation in the Linux GUD driver allows physically proximate attackers to trigger a kernel warning via a crafted USB display. gud_plane_add_properties passes a device-reported rotation bitmask to drm_plane_create_rotation_property without requiring GUD_ROTATION_0, violating the helper's supported-mask invariant. Reachability requires a GUD USB peripheral that omits the bit; the demonstrated result is a WARN_ON during device probing, not a kernel crash.

The record

CVE
CVE-2026-98148
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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?

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  1. Affected versionversion=40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <876b33d8a9a00e9d4bbcbb7f55ad2c05974850de
  2. Affected versionversion=40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <b2cd682324b889011874cf844b7c7efa97c97296
  3. Affected versionversion=40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <cb732d027aa18e1fcf9d2797f47d20b179ebc59c
  4. Affected versionversion=5.13

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <876b33d8a9a00e9d4bbcbb7f55ad2c05974850de; version=40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <b2cd682324b889011874cf844b7c7efa97c97296; version=40e1a70b4aedf2859a1829991b48ef0ebe650bf2 <cb732d027aa18e1fcf9d2797f47d20b179ebc59c; version=5.13

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1200Hardware Additions

Public exploit references

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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