CVE-2025-39869
Vulnerability Scoring
Analysis In Progress
CVE-2025-39869 Vulnerability Analysis & Exploit Details
CVE-2025-39869
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-2025-39869 Details
Status: Awaiting Analysis
Last updated: 🕑 02 Oct 2025, 14:15 UTC
Originally published on: 🕕 23 Sep 2025, 06:15 UTC
Time between publication and last update: 9 days
CVSS Release:
CVE-2025-39869 Vulnerability Summary
CVE-2025-39869: In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Fix a critical memory allocation bug in edma_setup_from_hw() where queue_priority_map was allocated with insufficient memory. The code declared queue_priority_map as s8 (*)[2] (pointer to array of 2 s8), but allocated memory using sizeof(s8) instead of the correct size. This caused out-of-bounds memory writes when accessing: queue_priority_map[i][0] = i; queue_priority_map[i][1] = i; The bug manifested as kernel crashes with "Oops - undefined instruction" on ARM platforms (BeagleBoard-X15) during EDMA driver probe, as the memory corruption triggered kernel hardening features on Clang. Change the allocation to use sizeof(*queue_priority_map) which automatically gets the correct size for the 2D array structure.
Assessing the Risk of CVE-2025-39869
Access Complexity Graph
The exploitability of CVE-2025-39869 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-2025-39869
No exploitability data is available for CVE-2025-39869.
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-2025-39869, 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-2025-39869, 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-2025-39869 does not compromise confidentiality.
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Integrity:
None
CVE-2025-39869 does not impact data integrity.
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Availability:
None
CVE-2025-39869 does not affect system availability.
CVE-2025-39869 References
External References
- https://git.kernel.org/stable/c/069fd1688c57c0cc8a3de64d108579b31676f74b
- https://git.kernel.org/stable/c/1baed10553fc8b388351d8fc803e3ae6f1a863bc
- https://git.kernel.org/stable/c/301a96cc4dc006c9a285913d301e681cfbf7edb6
- https://git.kernel.org/stable/c/5e462fa0dfdb52b3983cf41532d3d4c7d63e2f93
- https://git.kernel.org/stable/c/7d4de60d6db02d9b01d5890d5156b04fad65d07a
- https://git.kernel.org/stable/c/d5e82f3f2c918d446df46e8d65f8083fd97cdec5
- https://git.kernel.org/stable/c/d722de80ce037dccf6931e778f4a46499d51bdf9
- https://git.kernel.org/stable/c/e63419dbf2ceb083c1651852209c7f048089ac0f
CWE Common Weakness Enumeration
Unknown
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