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CVE Record

CVE-2024-43886: drm/amd/display: Add null check in resource_log_pipe_topology_update

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check in resource_log_pipe_topology_update [WHY] When switching from "Extend" to "Second Display Only" we sometimes call resource_get_otg_master_for_stream on a stream for the eDP, which is disconnected. This leads to a null pointer dereference. [HOW] Added a null check in dc_resource.c/resource_log_pipe_topology_update.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue can crash affected systems in a specific AMD display handling path. The cited description ties it to switching display modes when an embedded DisplayPort stream is disconnected. Business impact is most likely availability disruption on affected endpoints or workstations, not confirmed data theft or remote compromise.

Executive priority

Prioritize through normal kernel patch cycles, with faster handling for AMD Linux workstations where display crashes would disrupt operations. Current evidence does not support emergency response for active exploitation or remote compromise.

Technical view

CVE-2024-43886 is a null pointer dereference in Linux drm/amd/display, specifically resource_log_pipe_topology_update calling resource_get_otg_master_for_stream for a disconnected eDP stream. The upstream resolution adds a null check in dc_resource.c. The provided record lists Linux kernel versions as affected and references stable kernel fixes.

Likely exposure

Exposure appears limited to Linux systems using the AMD display driver path, especially devices with eDP or multi-display workflows. Servers without AMD display hardware or graphical display mode changes are less likely exposed, but kernel packaging and backports must be verified per distribution.

Exploitation context

The source bundle does not show public exploitation, weaponized exploit details, or CISA KEV inclusion. The described trigger is a display mode transition that can cause a kernel null pointer dereference. Treat this primarily as a local availability risk unless vendor guidance states otherwise.

Researcher notes

Evidence is narrow but clear: the fix is a null check in drm/amd/display resource topology logging. No CVSS, CWE, exploit status, or detailed vendor mitigation is provided in the bundle, so exposure validation should focus on kernel lineage, backports, hardware path, and crash telemetry.

Mitigation direction

  • Apply Linux kernel updates containing the referenced stable fixes.
  • Check distribution advisories for CVE-2024-43886 backport status.
  • Prioritize laptops and workstations using AMD graphics and eDP displays.
  • Avoid assuming version safety without distro package confirmation.

Validation and detection

  • Inventory Linux endpoints running affected kernel branches and AMD display drivers.
  • Confirm installed kernel includes the upstream null-check fix or distro backport.
  • Review crash logs for AMD display null dereference symptoms.
  • Track vendor advisory updates for severity, impact, and patched package names.
Prepared
Confidence
medium
Sources
4

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.

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CVE-2024-43886 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

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

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxd8bafc2b1eeae78317d37b3440d1022977e9b28c, d8bafc2b1eeae78317d37b3440d1022977e9b28cunaffected
LinuxLinux6.7, 0, 6.10.5, 6.11affected
Weakness

CWE details

No CWE listed

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