CVE-2025-38027

Invalid memory access via stale stack pointer

Published Jun 18, 2025 · Updated May 11, 2026

Memory lifetime error in the Linux max20086 regulator driver from 5.17 allows local users to trigger invalid memory access during probe cleanup. max20086_parse_regulators_dt() places the regulator-match array on the stack, while device-managed cleanup retains that pointer and later passes it to of_node_put() after the array is out of scope. Reachability requires a MAX20086 device probe to fail; the documented result is invalid cleanup access with kernel diagnostics, while further consequences are not established.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory lifetime error in the Linux max20086 regulator driver from 5.17 allows local users to trigger invalid memory access during probe cleanup. max20086_parse_regulators_dt() places the regulator-match array on the stack, while device-managed cleanup retains that pointer and later passes it to of_node_put() after the array is out of scope. Reachability requires a MAX20086 device probe to fail; the documented result is invalid cleanup access with kernel diagnostics, while further consequences are not established.

The record

CVE
CVE-2025-38027
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record 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=5.17
  2. Affected versionversion=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <5578ab04bd7732f470fc614bbc0a924900399fb8
  3. Affected versionversion=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <6b0cd72757c69bc2d45da42b41023e288d02e772
  4. Affected versionversion=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <6ba30f7aa2c550b2ac04f16b81a19a8c045b8660
  5. Affected versionversion=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <7bddac8603d4e396872c2fbf4403ec08e7b1d7c8
  6. Affected versionversion=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <d2a9a92bb4cc7568cff68241b0051dc7268bdc68

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.17; version=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <5578ab04bd7732f470fc614bbc0a924900399fb8; version=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <6b0cd72757c69bc2d45da42b41023e288d02e772; version=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <6ba30f7aa2c550b2ac04f16b81a19a8c045b8660; version=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <7bddac8603d4e396872c2fbf4403ec08e7b1d7c8; version=bfff546aae50ae68ed395bf0e0848188d27b0ba3 <d2a9a92bb4cc7568cff68241b0051dc7268bdc68

Published CVSS scores

6.1SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
6.9SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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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

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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