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CVE Record

CVE-2023-52460: drm/amd/display: Fix NULL pointer dereference at hibernate

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL pointer dereference at hibernate During hibernate sequence the source context might not have a clk_mgr. So don't use it to look for DML2 support.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2023-52460 is a Linux kernel AMD display bug where hibernation can hit a missing clock-manager object and dereference NULL. The public record does not provide CVSS, CWE, or confirmed exploitation. Treat it mainly as an availability and stability risk for Linux systems using the affected AMD display path.

Executive priority

Handle through standard kernel patch management unless affected laptops, workstations, or appliances depend on reliable hibernation. Escalate priority where unexpected reboots or hibernate failures would disrupt operations. Current public evidence does not support emergency treatment.

Technical view

The resolved kernel issue is in drm/amd/display. During hibernate, the source context may not have clk_mgr, but code used that context to check DML2 support, causing a NULL pointer dereference. The source bundle lists Linux kernel versions including 6.7, 6.7.2, and 6.8 as affected, with stable commits referenced.

Likely exposure

Exposure appears limited to Linux systems running affected kernel builds with the AMD display driver path and hibernation behavior. Systems not using that graphics stack or hibernate are less likely to encounter the vulnerable path, based on the available description.

Exploitation context

No active exploitation is stated in the source bundle, and the CVE is not marked KEV. The available evidence describes a hibernation-triggered NULL pointer dereference, not a remote attack path or privilege escalation mechanism.

Researcher notes

The record is sparse: no CVSS, CWE, exploit status, or detailed affected-version ranges beyond the bundle. The strongest technical evidence is the kernel fix rationale: avoid using source context clk_mgr during hibernate because it may be absent.

Mitigation direction

  • Review Linux distribution advisories for CVE-2023-52460 backports.
  • Update affected kernels to vendor builds containing the referenced stable fixes.
  • Prioritize systems using AMD display hardware and hibernation.
  • If patching is delayed, review vendor guidance on hibernation workarounds.

Validation and detection

  • Inventory Linux kernel versions on systems with AMD display hardware.
  • Check whether deployed kernels include the referenced stable commits.
  • Confirm hibernation is enabled or used on exposed systems.
  • Monitor kernel logs for AMD display or hibernate-related NULL dereference crashes.
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.

ATT&CK lookup starting points

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CVE-2023-52460 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
2ADP 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
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux7966f319c66d9468623c6a6a017ecbc0dd79be75, 7966f319c66d9468623c6a6a017ecbc0dd79be75unaffected
LinuxLinux6.7, 0, 6.7.2, 6.8affected
Weakness

CWE details

No CWE listed

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