CVE-2023-53658
Vulnerability Scoring
Analysis In Progress
CVE-2023-53658 Vulnerability Analysis & Exploit Details
CVE-2023-53658
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-2023-53658 Details
Status: Awaiting Analysis
Last updated: 🕢 08 Oct 2025, 19:38 UTC
Originally published on: 🕓 07 Oct 2025, 16:15 UTC
Time between publication and last update: 1 days
CVSS Release:
CVE-2023-53658 Vulnerability Summary
CVE-2023-53658: In the Linux kernel, the following vulnerability has been resolved: spi: bcm-qspi: return error if neither hif_mspi nor mspi is available If neither a "hif_mspi" nor "mspi" resource is present, the driver will just early exit in probe but still return success. Apart from not doing anything meaningful, this would then also lead to a null pointer access on removal, as platform_get_drvdata() would return NULL, which it would then try to dereference when trying to unregister the spi master. Fix this by unconditionally calling devm_ioremap_resource(), as it can handle a NULL res and will then return a viable ERR_PTR() if we get one. The "return 0;" was previously a "goto qspi_resource_err;" where then ret was returned, but since ret was still initialized to 0 at this place this was a valid conversion in 63c5395bb7a9 ("spi: bcm-qspi: Fix use-after-free on unbind"). The issue was not introduced by this commit, only made more obvious.
Assessing the Risk of CVE-2023-53658
Access Complexity Graph
The exploitability of CVE-2023-53658 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-2023-53658
No exploitability data is available for CVE-2023-53658.
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-2023-53658, 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-2023-53658, 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-2023-53658 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53658 does not impact data integrity.
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Availability:
None
CVE-2023-53658 does not affect system availability.
CVE-2023-53658 References
External References
- https://git.kernel.org/stable/c/217b6ea8cf7b819477bca597a6ae2d43d38ba283
- https://git.kernel.org/stable/c/22ae32d80ef590d12a2364e4621f90f7c58445c7
- https://git.kernel.org/stable/c/32b9c8f7892c19f7f5c9fed5fb410b9fd5990bb6
- https://git.kernel.org/stable/c/398e6a015877d44327f754aeb48ff3354945c78c
- https://git.kernel.org/stable/c/7c1f23ad34fcdace50275a6aa1e1969b41c6233f
- https://git.kernel.org/stable/c/a91c34357afcfaa5307e254f22a8452550a07b34
- https://git.kernel.org/stable/c/d20db3c58a7f9361e370a7850ceb60dbdf62eea3
- https://git.kernel.org/stable/c/d3dcdb43c872a3b967345144151a2c9bb9124c9b
CWE Common Weakness Enumeration
Unknown
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