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CVE-2025-38113

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fix NULL pointer dereference when nosmp is used With nosmp in cmdline, other CPUs are not brought up, leaving their…

Published Jul 3, 2025CWE-476EPSS 0.19%

Overview

CVE-2025-38113 is a medium-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ACPI: CPPC: Fix NULL pointer dereference when nosmp is used

With nosmp in cmdline, other CPUs are not brought up, leaving

their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu()

dereferences these NULL pointers, causing panic.

Panic backtrace:

[ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8

...

[ 0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4

...

Kernel panic - not syncing: Attempted to kill init!

[ rjw: New subject ]

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12Refgit.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015Refgit.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bdRefgit.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611Refgit.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0Reflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38113?

CVE-2025-38113 is a medium-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38113?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-38113?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-38113?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38113 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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