Bug 2536734 (CVE-2026-93046)

Summary:	CVE-2026-93046 kernel: software node: Fix software_node_get_reference_args() with index -1
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
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
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Doc Text:	A flaw was found in the Linux kernel's software node component. A local attacker could exploit a failing bounds check in the `software_node_get_reference_args()` function when an index of `UINT_MAX` is passed. This could lead to an out-of-bounds access in the property array, potentially resulting in memory corruption and system instability or denial of service.	Story Points:	---
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Last Closed:		Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-09-17 19:23:07 UTC

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

software node: Fix software_node_get_reference_args() with index -1

The bounds check for the index passed to
software_node_get_reference_args() was failing when passed UINT_MAX,
this in turn would lead to an out of bound access in the property
array. Fix the bound check to also cover the UINT_MAX case.

Comment 1 gkamathe 2026-09-19 19:42:47 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93046.mbox