Bug 2436752 (CVE-2026-23065)

Summary: CVE-2026-23065 kernel: platform/x86/amd: Fix memory leak in wbrf_record()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2026-02-04 17:01:38 UTC 
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().
Comment 1 TEJ RATHI 2026-02-05 08:17:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026020416-CVE-2026-23065-f6ae@gregkh/T