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CVE-2025-38202

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: bpf: Check rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem() bpf_map_lookup_percpu_elem() helper is also available for…

Published Jul 4, 2025EPSS 0.18%

Overview

CVE-2025-38202 is a medium-severity vulnerability. It was published on July 4, 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:

bpf: Check rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem()

bpf_map_lookup_percpu_elem() helper is also available for sleepable bpf

program. When BPF JIT is disabled or under 32-bit host,

bpf_map_lookup_percpu_elem() will not be inlined. Using it in a

sleepable bpf program will trigger the warning in

bpf_map_lookup_percpu_elem(), because the bpf program only holds

rcu_read_lock_trace lock. Therefore, add the missed check.

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/2d834477bbc1e8b8a59ff8b0c081529d6bed7b22Refgit.kernel.org/stable/c/2f8c69a72e8ad87b36b8052f789da3cc2b2e186cRefgit.kernel.org/stable/c/7bf4461f1c97207fda757014690d55a447ce859fRefgit.kernel.org/stable/c/b522d4d334f206284b1a44b0b0b2f99fd443b39bRefgit.kernel.org/stable/c/d4965578267e2e81f67c86e2608481e77e9c8569Reflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38202?

CVE-2025-38202 is a medium-severity vulnerability. It was published on July 4, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38202?

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-2025-38202?

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-2025-38202?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38202 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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