CVE-2025-38395

Kernel memory corruption via undersized GPIO array

Published Jul 25, 2025 · Updated Aug 5, 2026

Out-of-bounds access in affected Linux kernel releases allows local users to corrupt kernel memory through a multi-GPIO regulator. The gpio_regulator_probe function allocates drvdata::gpiods for one pointer but later indexes it as config::ngpios pointers. A regulator configuration with config::ngpios greater than one is required; subsequent accesses can corrupt memory or crash the kernel.

CVSS severity8.4
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

Out-of-bounds access in affected Linux kernel releases allows local users to corrupt kernel memory through a multi-GPIO regulator. The gpio_regulator_probe function allocates drvdata::gpiods for one pointer but later indexes it as config::ngpios pointers. A regulator configuration with config::ngpios greater than one is required; subsequent accesses can corrupt memory or crash the kernel.

The record

CVE
CVE-2025-38395
Published
Jul 25, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.1
  2. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <24418bc77a66cb5be9f5a837431ba3674ed8b52f
  3. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <3830ab97cda9599872625cc0dc7b00160193634f
  4. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <56738cbac3bbb1d39a71a07f57484dec1db8b239
  5. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <9fe71972869faed1f8f9b3beb9040f9c1b300c79
  6. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <a1e12fac214d4f49fcb186dbdf9c5592e7fa0a7a
  7. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <a3cd5ae7befbac849e0e0529c94ca04e8093cfd2
  8. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <c9764fd88bc744592b0604ccb6b6fc1a5f76b4e3
  9. Affected versionversion=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <e4d19e5d71b217940e33f2ef6c6962b7b68c5606

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.1; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <24418bc77a66cb5be9f5a837431ba3674ed8b52f; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <3830ab97cda9599872625cc0dc7b00160193634f; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <56738cbac3bbb1d39a71a07f57484dec1db8b239; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <9fe71972869faed1f8f9b3beb9040f9c1b300c79; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <a1e12fac214d4f49fcb186dbdf9c5592e7fa0a7a; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <a3cd5ae7befbac849e0e0529c94ca04e8093cfd2; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <c9764fd88bc744592b0604ccb6b6fc1a5f76b4e3; version=d6cd33ad71029a3f77ba1686caf55d4dea58d916 <e4d19e5d71b217940e33f2ef6c6962b7b68c5606

Published CVSS scores

8.4LinuxCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
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

See the directory against your own environment.

Your stack

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