CVE-2025-38231
Vulnerability Scoring
Analysis In Progress
CVE-2025-38231 Vulnerability Analysis & Exploit Details
CVE-2025-38231
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2025-38231 Details
Status: Received on 04 Jul 2025, 14:15 UTC
Published on: 04 Jul 2025, 14:15 UTC
CVSS Release:
CVE-2025-38231 Vulnerability Summary
CVE-2025-38231: In the Linux kernel, the following vulnerability has been resolved: nfsd: Initialize ssc before laundromat_work to prevent NULL dereference In nfs4_state_start_net(), laundromat_work may access nfsd_ssc through nfs4_laundromat -> nfsd4_ssc_expire_umount. If nfsd_ssc isn't initialized, this can cause NULL pointer dereference. Normally the delayed start of laundromat_work allows sufficient time for nfsd_ssc initialization to complete. However, when the kernel waits too long for userspace responses (e.g. in nfs4_state_start_net -> nfsd4_end_grace -> nfsd4_record_grace_done -> nfsd4_cld_grace_done -> cld_pipe_upcall -> __cld_pipe_upcall -> wait_for_completion path), the delayed work may start before nfsd_ssc initialization finishes. Fix this by moving nfsd_ssc initialization before starting laundromat_work.
Assessing the Risk of CVE-2025-38231
Access Complexity Graph
The exploitability of CVE-2025-38231 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2025-38231
No exploitability data is available for CVE-2025-38231.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2025-38231, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2025-38231, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2025-38231 does not compromise confidentiality.
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Integrity:
None
CVE-2025-38231 does not impact data integrity.
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Availability:
None
CVE-2025-38231 does not affect system availability.
CVE-2025-38231 References
External References
- https://git.kernel.org/stable/c/0fccf5f01ed28725cc313a66ca1247eef911d55e
- https://git.kernel.org/stable/c/5060e1a5fef184bd11d298e3f0ee920d96a23236
- https://git.kernel.org/stable/c/83ac1ba8ca102ab5c0ed4351f8ac6e74ac4d5d64
- https://git.kernel.org/stable/c/a97668ec6d73dab237cd1c15efe012a10090a4ed
- https://git.kernel.org/stable/c/b31da62889e6d610114d81dc7a6edbcaa503fcf8
- https://git.kernel.org/stable/c/d622c2ee6c08147ab8c9b9e37d93b6e95d3258e0
- https://git.kernel.org/stable/c/deaeb74ae9318252829c59a84a7d2316fc335660
CWE Common Weakness Enumeration
Unknown
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