Bug 2540467 (CVE-2026-97450)

Summary:	CVE-2026-97450 kernel: ACPICA: validate handler object type in two places
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	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
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's ACPICA (Advanced Configuration and Power Interface Component Architecture) subsystem. The event handler routines fail to validate object types before reading handler fields in functions such as acpi_ev_has_default_handler(). A local user or environment with manipulated ACPI tables could trigger an invalid memory access, causing a kernel crash and resulting in a denial of service (DoS).	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-09-24 16:56:10 UTC

In the Linux kernel, the following vulnerability has been resolved:

ACPICA: validate handler object type in two places

ACPICA: validate handler object type in acpi_ev_has_default_handler()
and acpi_ev_find_region_handler().

Comment 1 Mauro Matteo Cascella 2026-09-29 16:13:34 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97450.mbox