CVE-2025-39902
Vulnerability Scoring
Analysis In Progress
CVE-2025-39902 Vulnerability Analysis & Exploit Details
CVE-2025-39902
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-2025-39902 Details
Status: Awaiting Analysis
Last updated: 🕖 02 Oct 2025, 19:12 UTC
Originally published on: 🕗 01 Oct 2025, 08:15 UTC
Time between publication and last update: 1 days
CVSS Release:
CVE-2025-39902 Vulnerability Summary
CVE-2025-39902: In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid accessing metadata when pointer is invalid in object_err() object_err() reports details of an object for further debugging, such as the freelist pointer, redzone, etc. However, if the pointer is invalid, attempting to access object metadata can lead to a crash since it does not point to a valid object. One known path to the crash is when alloc_consistency_checks() determines the pointer to the allocated object is invalid because of a freelist corruption, and calls object_err() to report it. The debug code should report and handle the corruption gracefully and not crash in the process. In case the pointer is NULL or check_valid_pointer() returns false for the pointer, only print the pointer value and skip accessing metadata.
Assessing the Risk of CVE-2025-39902
Access Complexity Graph
The exploitability of CVE-2025-39902 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-2025-39902
No exploitability data is available for CVE-2025-39902.
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-2025-39902, 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-2025-39902, 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-2025-39902 does not compromise confidentiality.
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Integrity:
None
CVE-2025-39902 does not impact data integrity.
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Availability:
None
CVE-2025-39902 does not affect system availability.
CVE-2025-39902 References
External References
- https://git.kernel.org/stable/c/0ef7058b4dc6fcef622ac23b45225db57f17b83f
- https://git.kernel.org/stable/c/1f0797f17927b5cad0fb7eced422f9a7c30a3191
- https://git.kernel.org/stable/c/3baa1da473e6e50281324ff1d332d1a07a3bb02e
- https://git.kernel.org/stable/c/7e287256904ee796c9477e3ec92b07f236481ef3
- https://git.kernel.org/stable/c/872f2c34ff232af1e65ad2df86d61163c8ffad42
- https://git.kernel.org/stable/c/b4efccec8d06ceb10a7d34d7b1c449c569d53770
- https://git.kernel.org/stable/c/dda6ec365ab04067adae40ef17015db447e90736
- https://git.kernel.org/stable/c/f66012909e7bf383fcdc5850709ed5716073fdc4
CWE Common Weakness Enumeration
Unknown
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