In the Linux kernel, the following vulnerability has been resolved: powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw() The get_pd_power_uw() function can crash with a NULL pointer dereference when em_cpu_get() returns NULL. This occurs when a CPU becomes impossible during runtime, causing get_cpu_device() to return NULL, which propagates through em_cpu_get() and leads to a crash when em_span_cpus() dereferences the NULL pointer. Add a NULL check after em_cpu_get() and return 0 if unavailable, matching the existing fallback behavior in __dtpm_cpu_setup(). [ rjw: Drop an excess empty code line ]

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/27914f2b795e2b58e9506f281dcdd98fef09d3c2 cve-icon cve-icon
https://git.kernel.org/stable/c/27e0318f0ea69fcfa32228847debc384ade14578 cve-icon cve-icon
https://git.kernel.org/stable/c/2fd001a0075ac01dc64a28a8e21226b3d989a91d cve-icon cve-icon
https://git.kernel.org/stable/c/46dc57406887dd02565cb264224194a6776d882b cve-icon cve-icon
https://git.kernel.org/stable/c/8374ac7d69a57d737e701a851ffe980a0d27d3ad cve-icon cve-icon
https://git.kernel.org/stable/c/c6ec27091cf5ac05094c1fe3a6ce914cf711a37c cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025081923-CVE-2025-38610-9b4f@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-38610 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-38610 cve-icon
History

Thu, 21 Aug 2025 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Thu, 21 Aug 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Tue, 19 Aug 2025 17:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw() The get_pd_power_uw() function can crash with a NULL pointer dereference when em_cpu_get() returns NULL. This occurs when a CPU becomes impossible during runtime, causing get_cpu_device() to return NULL, which propagates through em_cpu_get() and leads to a crash when em_span_cpus() dereferences the NULL pointer. Add a NULL check after em_cpu_get() and return 0 if unavailable, matching the existing fallback behavior in __dtpm_cpu_setup(). [ rjw: Drop an excess empty code line ]
Title powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-08-19T17:03:53.255Z

Updated: 2025-08-19T17:03:53.255Z

Reserved: 2025-04-16T04:51:24.029Z

Link: CVE-2025-38610

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-19T17:15:39.490

Modified: 2025-08-20T14:40:17.713

Link: CVE-2025-38610

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-08-19T00:00:00Z

Links: CVE-2025-38610 - Bugzilla