Bug 2536286 (CVE-2026-90403)

Summary:	CVE-2026-90403 kernel: wifi: rtlwifi: pci: fix error path in rtl_pci_probe()
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
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
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's rtlwifi PCI driver. An issue in the rtl_pci_probe() error handling path causes cleanup functions to be skipped. This prevents proper de-initialization of resources, which could lead to resource exhaustion or system instability, potentially resulting in a Denial of Service (DoS).	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
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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 17:16:17 UTC

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

wifi: rtlwifi: pci: fix error path in rtl_pci_probe()

In the last error path in rtl_pci_probe(), the cleanup functions are
skipped due to a wrong goto label. Moreover, the successful call to
rtl_init_rfkill(), ieee80211_register_hw(), rtl_debug_add_one() have to
be reverted. Fix this issue by updating the labels and adding the
relevant cleanup functions to the last error path.

Comment 1 gkamathe 2026-09-21 15:31:33 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90403.mbox