CVE-2026-45875

Regulator resource leak via skipped failure cleanup

Published May 27, 2026 · Updated May 27, 2026

Resource leakage in the Arizona MFD driver in Linux Kernel leaves regulators enabled after a hardware/I2C initialization error. wm5102_clear_write_sequencer() returns directly on failure instead of jumping to err_reset, bypassing regulator-disable and reset cleanup. The required hardware/I2C error occurs during device initialization and cannot be invoked or influenced by attackers.

CVSS severity5.5
Medium
EPSS probability0.17%
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 Arizona MFD driver in Linux Kernel leaves regulators enabled after a hardware/I2C initialization error. wm5102_clear_write_sequencer() returns directly on failure instead of jumping to err_reset, bypassing regulator-disable and reset cleanup. The required hardware/I2C error occurs during device initialization and cannot be invoked or influenced by attackers.

The record

CVE
CVE-2026-45875
Published
May 27, 2026
Updated
May 27, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-401
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <2049820d1e635e467d795237fd40287213d92349
  2. Affected versionversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <3ea01691738b0decb63ea2705d2cdf27f6f26fc0
  3. Affected versionversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <445cec7b4fbb1546836ae8e332d158e8d37d0fb6
  4. Affected versionversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <4feb753ba6e5e5bbaba868b841a2db41c21e56fa
  5. Affected versionversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <54eafc1b0dbcf79c5f8b6dc8d9e92e56b9384c0a
  6. Affected versionversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <5a4923726a165593d7601834a6fb2a10ab47b85d
  7. Affected versionversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <933c5463873582baaecf5c38401ec4095b1c6269
  8. Affected versionversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <e0527c09bcf1e6beeb685a7f4177683866b8609c
  9. Affected versionversion=4.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <2049820d1e635e467d795237fd40287213d92349; version=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <3ea01691738b0decb63ea2705d2cdf27f6f26fc0; version=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <445cec7b4fbb1546836ae8e332d158e8d37d0fb6; version=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <4feb753ba6e5e5bbaba868b841a2db41c21e56fa; version=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <54eafc1b0dbcf79c5f8b6dc8d9e92e56b9384c0a; version=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <5a4923726a165593d7601834a6fb2a10ab47b85d; version=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <933c5463873582baaecf5c38401ec4095b1c6269; version=1c1c6bba57f51331f64f32d0ce9a0f9883041205 <e0527c09bcf1e6beeb685a7f4177683866b8609c; version=4.2

Published CVSS scores

6.7SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
4.4SUSECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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-401Missing Release of Memory after Effective Lifetime

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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