Bug 2536505 (CVE-2026-92524)

Summary:	CVE-2026-92524 kernel: irqchip/gic-v3-its: Prevent leak in its_vpe_irq_domain_alloc()
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:
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Doc Text:	A flaw was found in the Linux kernel's irqchip/gic-v3-its component. A resource leak occurs when the `its_irq_gic_domain_alloc()` function fails to properly deallocate resources during error handling. This can lead to a denial of service (DoS) due to excessive memory consumption.	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 2026-09-17 18:14:43 UTC

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

irqchip/gic-v3-its: Prevent leak in its_vpe_irq_domain_alloc()

When its_irq_gic_domain_alloc() fails, the following
its_vpe_irq_domain_free() fails to invoke its_vep_teardown() for the
corresponding interrupt, which leaks the resource.

Invoke its_vpe_teardown() in the error handling path to avoid the leak.

[ tglx: Massaged change log ]

Comment 1 gkamathe 2026-09-19 18:30:08 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-92524.mbox