CVE-2023-53224
Vulnerability Scoring
Analysis In Progress
CVE-2023-53224 Vulnerability Analysis & Exploit Details
CVE-2023-53224
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-2023-53224 Details
Status: Awaiting Analysis
Published on: 15 Sep 2025, 15:15 UTC
CVSS Release:
CVE-2023-53224 Vulnerability Summary
CVE-2023-53224: In the Linux kernel, the following vulnerability has been resolved: ext4: Fix function prototype mismatch for ext4_feat_ktype With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed. ext4_feat_ktype was setting the "release" handler to "kfree", which doesn't have a matching function prototype. Add a simple wrapper with the correct prototype. This was found as a result of Clang's new -Wcast-function-type-strict flag, which is more sensitive than the simpler -Wcast-function-type, which only checks for type width mismatches. Note that this code is only reached when ext4 is a loadable module and it is being unloaded: CFI failure at kobject_put+0xbb/0x1b0 (target: kfree+0x0/0x180; expected type: 0x7c4aa698) ... RIP: 0010:kobject_put+0xbb/0x1b0 ... Call Trace: <TASK> ext4_exit_sysfs+0x14/0x60 [ext4] cleanup_module+0x67/0xedb [ext4]
Assessing the Risk of CVE-2023-53224
Access Complexity Graph
The exploitability of CVE-2023-53224 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-2023-53224
No exploitability data is available for CVE-2023-53224.
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-2023-53224, 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-2023-53224, 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-2023-53224 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53224 does not impact data integrity.
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Availability:
None
CVE-2023-53224 does not affect system availability.
CVE-2023-53224 References
External References
- https://git.kernel.org/stable/c/0a1394e07c5d6bf1bfc25db8589ff1b1bfb6f46a
- https://git.kernel.org/stable/c/118901ad1f25d2334255b3d50512fa20591531cd
- https://git.kernel.org/stable/c/1ba10d3640e9783dad811fe4e24d55465c37c64d
- https://git.kernel.org/stable/c/2b69cdd9f9a7f596e3dd31f05f9852940d177924
- https://git.kernel.org/stable/c/94d8de83286fb1827340eba35b61c308f6b46ead
- https://git.kernel.org/stable/c/99e3fd21f8fc975c95e8cf76fbf6a3d2656f8f71
- https://git.kernel.org/stable/c/c98077f7598a562f51051eec043be0cb3e1b1b5e
CWE Common Weakness Enumeration
Unknown
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