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CVE Record

CVE-2024-27041: drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini()

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini() Since 'adev->dm.dc' in amdgpu_dm_fini() might turn out to be NULL before the call to dc_enable_dmub_notifications(), check beforehand to ensure there will not be a possible NULL-ptr-deref there. Also, since commit 1e88eb1b2c25 ("drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP") there are two separate checks for NULL in 'adev->dm.dc' before dc_deinit_callbacks() and dc_dmub_srv_destroy(). Clean up by combining them all under one 'if'. Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel AMD display driver flaw that can crash affected systems rather than expose data. The issue is a missing NULL check during AMDGPU display cleanup. Business impact is mainly local denial of service on systems running affected kernels with relevant AMD display functionality.

Executive priority

Treat as routine but real availability risk. Patch through normal kernel update cycles, faster for shared workstations, GPU-enabled hosts, or environments where local users are not fully trusted. No source evidence supports emergency response for active exploitation.

Technical view

CVE-2024-27041 is a CWE-476 NULL pointer dereference in drm/amd/display amdgpu_dm_fini(). adev->dm.dc may be NULL before dc_enable_dmub_notifications(), so the kernel fix adds a prior check and consolidates related NULL checks. CVSS 3.1 is 5.5: local, low complexity, low privileges, no user interaction, availability impact only.

Likely exposure

Exposure is most plausible on Linux systems using affected kernel versions with the AMDGPU display driver path present. The CVE data lists Linux kernel versions including 5.14, 6.6.23, 6.7.11, 6.8.2, and 6.9 as affected entries. Distribution backports may change practical exposure.

Exploitation context

The provided sources do not indicate active exploitation, and KEV is false. The CVSS vector requires local access with low privileges and targets availability only. The source material does not provide evidence of remote exploitation or data compromise.

Researcher notes

The fix is defensive cleanup-path hardening in amdgpu_dm_fini(), preventing dc_enable_dmub_notifications() from seeing a NULL adev->dm.dc. The report credits Linux Verification Center using SVACE static analysis. Evidence supports local denial of service, not privilege escalation or information disclosure.

Mitigation direction

  • Apply Linux kernel updates that include the referenced stable fixes.
  • Use distribution vendor advisories to confirm the fixed package version.
  • Prioritize shared systems where untrusted local users have shell or application access.
  • Reduce unnecessary local user access until patched where availability is critical.

Validation and detection

  • Inventory Linux kernel versions across AMD GPU or display-enabled systems.
  • Confirm whether vendor kernel packages include the referenced upstream stable commits.
  • Check vulnerability scanner findings against distro backport notes before closing.
  • Verify patched systems are running the updated kernel after maintenance reboot.
Prepared
Confidence
high
Sources
6

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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cwe · low confidence lookup

CWE-476: Exact CWE lookup

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cve · low confidence lookup

CVE-2024-27041 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
5Source 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
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2024-27041Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux81927e2808be5adace93c2012d45d6938d3a7aa0, 81927e2808be5adace93c2012d45d6938d3a7aa0, 81927e2808be5adace93c2012d45d6938d3a7aa0, 81927e2808be5adace93c2012d45d6938d3a7aa0unaffected
LinuxLinux5.14, 0, 6.6.23, 6.7.11, 6.8.2, 6.9affected
Weakness

CWE details

CWE-476

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-476 · source CWE mapping

NULL Pointer Dereference

NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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