Bug 2540468 (CVE-2026-97452)

Summary: CVE-2026-97452 kernel: ACPICA: Prevent adding invalid references
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
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 (Advanced Configuration and Power Interface) Component Architecture (ACPICA). When copying internal ACPI objects, the system improperly attempts to update reference counts for objects that do not maintain valid pointers. A local user capable of invoking specific ACPI methods can exploit this vulnerability to cause kernel instability, resulting in a denial of service (DoS).
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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 16:56:26 UTC
In the Linux kernel, the following vulnerability has been resolved:

ACPICA: Prevent adding invalid references

Prevent adding references for local, argument, and debug objects
in acpi_ut_copy_simple_object().