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CVE Record

CVE-2023-54304: firmware: meson_sm: fix to avoid potential NULL pointer dereference

In the Linux kernel, the following vulnerability has been resolved: firmware: meson_sm: fix to avoid potential NULL pointer dereference of_match_device() may fail and returns a NULL pointer. Fix this by checking the return value of of_match_device.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2023-54304 is a Linux kernel bug in the meson_sm firmware code. A failed device-match lookup could be handled incorrectly and cause a NULL pointer dereference. The public record does not provide CVSS, confirmed impact scope, or exploitability details, so business urgency depends on whether exposed kernels and that driver are present.

Executive priority

Handle through normal kernel vulnerability management unless meson_sm is present on critical systems. Escalate if vendors rate the issue higher or identify reachable attack paths. Current public evidence does not support emergency response or active-exploitation assumptions.

Technical view

The meson_sm firmware driver called of_match_device(), which may return NULL. The fix checks that return value before use. Sources describe only a potential NULL pointer dereference; they do not document a trigger path, required privileges, affected configurations beyond Linux kernel versions, or confirmed security impact.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions or downstream builds that include the meson_sm firmware driver. Distribution kernels may carry backported fixes, so upstream version numbers alone are insufficient. The source bundle does not identify specific hardware platforms, enabled configurations, or remote exposure.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of active exploitation, public exploit code, or weaponized use. Treat exploitability as unproven from these sources. The likely security concern is availability impact if the NULL dereference is reachable.

Researcher notes

The record is sparse: no CVSS, CWE, privilege requirement, trigger condition, or exploitability analysis is provided. Analysis should center on the upstream commits and downstream backports. Avoid assuming remote reachability or broad impact without platform-specific evidence.

Mitigation direction

  • Check Linux vendor or distribution advisories for CVE-2023-54304 status.
  • Update to a kernel build containing the referenced stable fixes or vendor backport.
  • Prioritize systems that include or use the meson_sm firmware driver.
  • Track fleet kernel versions and configuration against vendor fixed releases.

Validation and detection

  • Inventory Linux kernel versions across affected assets.
  • Confirm whether meson_sm firmware support is built or loaded.
  • Verify vendor kernel packages include the upstream stable fix commits.
  • Review vulnerability scanner findings against distribution backport notes.
Prepared
Confidence
medium
Sources
9

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-2023-54304 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
0ADP providers
8Source links

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.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux525ae72d9f0b5cf027f1c78c84e41c90e86df026, 8cde3c2153e8f57be884c0e73f18bc4de150e870, 8cde3c2153e8f57be884c0e73f18bc4de150e870, 8cde3c2153e8f57be884c0e73f18bc4de150e870, 8cde3c2153e8f57be884c0e73f18bc4de150e870, 8cde3c2153e8f57be884c0e73f18bc4de150e870, 8cde3c2153e8f57be884c0e73f18bc4de150e870unaffected
LinuxLinux5.5, 0, 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3, 6.6affected
Weakness

CWE details

No CWE listed

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