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CVE Record

CVE-2023-52706: gpio: sim: fix a memory leak

In the Linux kernel, the following vulnerability has been resolved: gpio: sim: fix a memory leak Fix an inverted logic bug in gpio_sim_remove_hogs() that leads to GPIO hog structures never being freed.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2023-52706 is a Linux kernel issue where GPIO simulator “hog” structures may not be freed because of an inverted logic bug. This is a memory leak, not documented as remote code execution. Business urgency appears low unless affected systems actively use this kernel GPIO simulator functionality.

Executive priority

Treat as routine kernel maintenance unless your environment depends on gpio-sim. There is no cited evidence of active exploitation or severe impact, but affected kernels should still be updated through normal patch cycles.

Technical view

The Linux kernel gpio-sim code had an inverted logic bug in gpio_sim_remove_hogs(), causing GPIO hog structures to remain allocated. The CVE record lists affected Linux versions including 5.17, 6.1.13, and 6.2, with fixes referenced in stable kernel commits. No CVSS, CWE, or exploitation details are provided.

Likely exposure

Exposure is likely limited to Linux systems running affected kernels where the gpio-sim component is present and used. The provided sources do not show internet-facing exposure, privilege requirements, or default enablement details.

Exploitation context

The sources describe a memory leak only. They do not report active exploitation, public exploit availability, or CISA KEV listing. Potential impact is most plausibly availability degradation, but practical exploitability is not established by the provided evidence.

Researcher notes

Evidence is sparse: the CVE record provides the bug description and stable commit references, but no CVSS, CWE, reachability, or threat activity. Analysis should focus on kernel configuration, gpio-sim usage, and whether downstream distributions backported the fixes.

Mitigation direction

  • Update affected Linux kernels using vendor packages that include the referenced stable fixes.
  • Prioritize systems where gpio-sim is enabled or used in testing, lab, or embedded workflows.
  • If gpio-sim is unused, consider disabling it according to vendor guidance.
  • Monitor Linux distribution advisories for backported fixes and affected package versions.

Validation and detection

  • Inventory Linux kernel versions across managed assets.
  • Identify whether gpio-sim functionality is enabled, packaged, or loaded on relevant systems.
  • Confirm installed kernels include the referenced stable commits or vendor backports.
  • Review distribution security advisories for CVE-2023-52706 applicability.
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-2023-52706 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
LinuxLinuxcb8c474e79be458f58e9df073f51ca159f3a2aa0, cb8c474e79be458f58e9df073f51ca159f3a2aa0unaffected
LinuxLinux5.17, 0, 6.1.13, 6.2affected
Weakness

CWE details

No CWE listed

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