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CVE Record

CVE-2024-46812: drm/amd/display: Skip inactive planes within ModeSupportAndSystemConfiguration

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Skip inactive planes within ModeSupportAndSystemConfiguration [Why] Coverity reports Memory - illegal accesses. [How] Skip inactive planes.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A Linux AMD display-driver flaw can make the kernel access memory illegally while evaluating display configurations containing inactive planes. On affected systems, a local low-privileged user could potentially compromise confidentiality, integrity, or availability. Exposure is primarily relevant to Linux machines using the affected AMD display path.

Executive priority

Treat as a high-priority endpoint patching issue where affected AMD graphics and local untrusted access coexist. It is less urgent for systems that cannot reach the AMD display path. Require evidence of the corrected running kernel, not merely an installed package.

Technical view

The flaw is in drm/amd/display within ModeSupportAndSystemConfiguration. The correction skips inactive planes before processing them. CVSS 3.1 scores it 7.8 with local access, low complexity, low privileges, no user interaction, unchanged scope, and high potential confidentiality, integrity, and availability impact.

Likely exposure

Prioritize Linux workstations, shared desktops, and other systems using AMD graphics with an affected kernel. Systems without the AMD display driver or relevant hardware are less likely to expose this path. The supplied version data is ambiguous, so confirm applicability through distribution advisories and backport records.

Exploitation context

The CVSS vector describes local, low-privileged exploitation without user interaction; this is not a remote-entry vulnerability. The source bundle reports no KEV listing and provides no evidence of active exploitation, public proof-of-concept code, or a demonstrated attack chain.

Researcher notes

Coverity identified an illegal memory access, and the upstream fix skips inactive planes. No CWE, root-cause depth, crash trace, exploit demonstration, or precise affected-version ranges are supplied. The repeated commit hash and mixed version list reduce confidence in exact exposure mapping; assess fixes through commit or vendor-backport provenance.

Mitigation direction

  • Install a distribution kernel containing the applicable upstream stable correction.
  • Prioritize shared or untrusted-user systems operating with affected AMD graphics.
  • If immediate updating is unavailable, consult the distribution vendor for supported mitigations.
  • Reboot into the corrected kernel after installation.

Validation and detection

  • Record the running kernel version and identify whether the AMD display driver is active.
  • Check distribution advisories and package changelogs for a backport of the listed correction.
  • Confirm the system booted into the updated kernel after remediation.
  • Review kernel logs for AMD display faults or memory-access-related crashes.
Prepared
Confidence
medium
Sources
10

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2024-46812 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
2ADP providers
9Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-46812Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7cunaffected
LinuxLinux4.15, 0, 5.10.236, 5.15.180, 6.1.109, 6.6.50, 6.10.9, 6.11affected
Weakness

CWE details

No CWE listed

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