CVE-2026-23065
Unknown Unknown - Not Provided
Memory Leak in Linux Kernel x86 AMD wbrf_record Component

Publication date: 2026-02-04

Last updated on: 2026-03-13

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd: Fix memory leak in wbrf_record() The tmp buffer is allocated using kcalloc() but is not freed if acpi_evaluate_dsm() fails. This causes a memory leak in the error path. Fix this by explicitly freeing the tmp buffer in the error handling path of acpi_evaluate_dsm().
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Meta Information
Published
2026-02-04
Last Modified
2026-03-13
Generated
2026-06-16
AI Q&A
2026-02-04
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23065
EUVD
EUVD-2026-5479
Affected Vendors & Products
Showing 8 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 6.8 (inc) to 6.12.68 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.8 (exc)
linux linux_kernel 6.19
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 memory leak in the Linux kernel's platform/x86/amd code, specifically in the wbrf_record() function.

The issue occurs because a temporary buffer allocated with kcalloc() is not freed if the function acpi_evaluate_dsm() fails, causing memory to be leaked in the error handling path.

The fix involves explicitly freeing this temporary buffer when acpi_evaluate_dsm() fails to prevent the memory leak.

Impact Analysis

This vulnerability can lead to a memory leak in the Linux kernel, which may cause increased memory usage over time.

If exploited or triggered repeatedly, it could degrade system performance or potentially lead to system instability due to exhaustion of available memory.

Compliance Impact

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Detection Guidance

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Mitigation Strategies

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