Bug 2559588 (CVE-2026-98913)

Summary:	CVE-2026-98913 kernel: net: thunderx: fix PTP device ref leak in nicvf_probe()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
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 Cavium ThunderX network driver. When initializing a network interface, an error occurring after acquiring a reference to the Precision Time Protocol (PTP) device fails to properly release that reference. A privileged local attacker could exploit this issue by triggering repeated initialization failures, resulting in a resource leak and a potential Denial of Service (DoS).	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 2026-10-23 12:18:40 UTC

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

net: thunderx: fix PTP device ref leak in nicvf_probe()

cavium_ptp_get() acquires a reference to the PTP PCI device
through pci_get_device(). If any initialization step fails
after cavium_ptp_get(), the PTP PCI device reference is leaked.
Add a common error path to release the PTP reference before
returning from probe failures.

Comment 1 Mauro Matteo Cascella 2026-10-27 09:53:51 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98913.mbox