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CVE Record

CVE-2023-53682: hwmon: (xgene) Fix ioremap and memremap leak

In the Linux kernel, the following vulnerability has been resolved: hwmon: (xgene) Fix ioremap and memremap leak Smatch reports: drivers/hwmon/xgene-hwmon.c:757 xgene_hwmon_probe() warn: 'ctx->pcc_comm_addr' from ioremap() not released on line: 757. This is because in drivers/hwmon/xgene-hwmon.c:701 xgene_hwmon_probe(), ioremap and memremap is not released, which may cause a leak. To fix this, ioremap and memremap is modified to devm_ioremap and devm_memremap. [groeck: Fixed formatting and subject]

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2023-53682 is a Linux kernel issue in the xgene hardware monitoring driver. The driver could leak mapped memory resources during device probing. Public sources do not provide a CVSS score, impact assessment, or evidence of active exploitation. Business urgency is mainly for organizations running affected Linux kernels on systems that use this driver.

Executive priority

Treat as a targeted kernel maintenance item, not an emergency, unless your environment uses affected xgene hardware monitoring paths. Include it in routine kernel patch cycles and confirm vendor applicability because public severity and exploit evidence are limited.

Technical view

The issue is in drivers/hwmon/xgene-hwmon.c xgene_hwmon_probe(). ioremap() and memremap() resources were not released on an error path, causing a leak. The kernel fix changes these to devm_ioremap() and devm_memremap() so cleanup is device-managed. References point to Linux stable commits addressing the flaw.

Likely exposure

Exposure appears limited to Linux systems with affected kernel versions and the xgene hwmon driver path in use. The CVE data lists Linux kernel versions including 4.9, 6.1.25, 6.2.12, and 6.3 as affected, but the provided data does not give complete version range semantics.

Exploitation context

No CISA KEV listing is indicated, and the provided sources do not report active exploitation. The described bug is a resource leak in kernel driver initialization, not a clearly documented remote code execution or privilege escalation path in the available sources.

Researcher notes

The public record frames this as a resolved Linux kernel resource leak found by Smatch. Severity, CWE, and CVSS are not provided. Affected-version data is sparse and should be validated against distribution backports and the three upstream stable commits before making exposure claims.

Mitigation direction

  • Review Linux vendor advisories for CVE-2023-53682 applicability to your kernel builds.
  • Update to a kernel containing the referenced stable fixes where applicable.
  • Prioritize systems using the xgene hardware monitoring driver.
  • If vendor packages are unavailable, track the listed upstream stable commits.

Validation and detection

  • Inventory Linux kernel versions across servers and appliances.
  • Check whether the xgene hwmon driver is built, loaded, or relevant to the hardware.
  • Compare deployed kernels against vendor advisories and referenced stable commits.
  • Monitor kernel logs for hardware monitoring probe errors on relevant systems.
Prepared
Confidence
medium
Sources
5

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

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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
4Source 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
LinuxLinuxed42cfa881e1d8d9603b7cb872199e3c8e0d1b19, ed42cfa881e1d8d9603b7cb872199e3c8e0d1b19, ed42cfa881e1d8d9603b7cb872199e3c8e0d1b19unaffected
LinuxLinux4.9, 0, 6.1.25, 6.2.12, 6.3affected
Weakness

CWE details

No CWE listed

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