CVE-2023-54097

Local denial of service via I/O-mapping leak

Published Dec 24, 2025 · Updated Dec 24, 2025

Resource leakage in the stm32-pwr regulator driver in Linux allows local users to impair availability through probe failures. stm32_pwr_regulator_probe() maps the device resource with of_iomap() but leaves base mapped when memory allocation or regulator registration fails. Reachability requires an STM32 power-regulator platform device and a probe failure; the documented outcome is resource exhaustion rather than code execution or data access.

CVSS severity5.7
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leakage in the stm32-pwr regulator driver in Linux allows local users to impair availability through probe failures. stm32_pwr_regulator_probe() maps the device resource with of_iomap() but leaves base mapped when memory allocation or regulator registration fails. Reachability requires an STM32 power-regulator platform device and a probe failure; the documented outcome is resource exhaustion rather than code execution or data access.

The record

CVE
CVE-2023-54097
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2
  2. Affected versionversion=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <0ad07e02be0d3f0d554653382ffe53ae4879378d
  3. Affected versionversion=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <824683dbec234a01bd49a0589ee3323594a6f4cf
  4. Affected versionversion=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <ad6481f49fb2c703efa3a929643934f24b666d6a
  5. Affected versionversion=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <c091bb49b3233307c7af73dae888f0799752af3d
  6. Affected versionversion=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <c4a413e56d16a2ae84e6d8992f215c4dcc7fac20
  7. Affected versionversion=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <dfce9bb3517a78507cf96f9b83948d0b81338afa
  8. Affected versionversion=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <f25994f7a9ad53eb756bc4869497c3ebe281ad5e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.2; version=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <0ad07e02be0d3f0d554653382ffe53ae4879378d; version=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <824683dbec234a01bd49a0589ee3323594a6f4cf; version=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <ad6481f49fb2c703efa3a929643934f24b666d6a; version=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <c091bb49b3233307c7af73dae888f0799752af3d; version=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <c4a413e56d16a2ae84e6d8992f215c4dcc7fac20; version=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <dfce9bb3517a78507cf96f9b83948d0b81338afa; version=dc62f951a6a8490bcccc7b6de36cd85bd57be740 <f25994f7a9ad53eb756bc4869497c3ebe281ad5e

Published CVSS scores

4.7SUSECVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7SUSECVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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