CVE-2025-38144

Kernel crash via unchecked memory-mapping failure

Published Jul 3, 2025 · Updated May 11, 2026

NULL pointer dereference in Linux 6.15's Lenovo SE30 watchdog driver allows local users to crash the kernel after a failed memory mapping. lenovo_se30_wdt_probe() stores the NULL result from devm_ioremap() in shm_base_addr and accesses the unmapped shared-memory window without checking it. Exploitation requires local low-privileged access, Lenovo SE30 hardware, the watchdog driver, and a mapping failure during device probing; the reported consequence is availability loss only.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux 6.15's Lenovo SE30 watchdog driver allows local users to crash the kernel after a failed memory mapping. lenovo_se30_wdt_probe() stores the NULL result from devm_ioremap() in shm_base_addr and accesses the unmapped shared-memory window without checking it. Exploitation requires local low-privileged access, Lenovo SE30 hardware, the watchdog driver, and a mapping failure during device probing; the reported consequence is availability loss only.

The record

CVE
CVE-2025-38144
Published
Jul 3, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 3, 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=6.15
  2. Affected versionversion=c284153a2c5537db4fec51ac850c17d2eb1ffcfe <57f7a1da0ec06d8579accaf77762d0128d13e4af
  3. Affected versionversion=c284153a2c5537db4fec51ac850c17d2eb1ffcfe <a4e2401438a26131ecff9be6a3a1d4cbfea66f9a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.15; version=c284153a2c5537db4fec51ac850c17d2eb1ffcfe <57f7a1da0ec06d8579accaf77762d0128d13e4af; version=c284153a2c5537db4fec51ac850c17d2eb1ffcfe <a4e2401438a26131ecff9be6a3a1d4cbfea66f9a

Published CVSS scores

5.5NVDCVSS: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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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