CVE-2023-53266
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-16

Last updated on: 2025-12-02

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: arm64: acpi: Fix possible memory leak of ffh_ctxt Allocated 'ffh_ctxt' memory leak is possible if the SMCCC version and conduit checks fail and -EOPNOTSUPP is returned without freeing the allocated memory. Fix the same by moving the allocation after the SMCCC version and conduit checks.
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Meta Information
Published
2025-09-16
Last Modified
2025-12-02
Generated
2026-06-16
AI Q&A
2025-09-16
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53266
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 6.2 (inc) to 6.2.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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Executive Summary

This vulnerability is a possible memory leak in the Linux kernel's arm64 ACPI implementation. Specifically, memory allocated for 'ffh_ctxt' may not be freed if certain checks related to SMCCC version and conduit fail, causing the allocated memory to leak. The issue is fixed by moving the memory allocation to occur after these checks, ensuring memory is only allocated when appropriate.

Impact Analysis

The vulnerability can lead to a memory leak in the Linux kernel on arm64 systems, which may cause increased memory usage and potentially degrade system performance or stability over time if the leak is triggered repeatedly.

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