Bug 2540390 (CVE-2026-97448)

Summary: CVE-2026-97448 kernel: ACPICA: Add validation for node in acpi_ns_build_normalized_path()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's ACPI Component Architecture (ACPICA) subsystem. The acpi_ns_build_normalized_path() function fails to validate namespace nodes before processing them, leading to a use-after-free condition. A local user could exploit this flaw to cause a Denial of Service (DoS) or potentially escalate privileges on the system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-09-24 16:38:31 UTC
In the Linux kernel, the following vulnerability has been resolved:

ACPICA: Add validation for node in acpi_ns_build_normalized_path()

Add validation for node in acpi_ns_build_normalized_path()
to prevent use-after-free vulnerabilities.