Bug 2555075 (CVE-2026-98710)

Summary:	CVE-2026-98710 kernel: wifi: iwlegacy: 3945: free EEPROM data on remove
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:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's iwlegacy wireless driver. The driver fails to release memory allocated for device configuration data when a wireless network device is removed from the system. A local user could exploit this vulnerability by repeatedly triggering device disconnection or unbinding, causing a kernel memory leak that may lead to system memory exhaustion and 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 2026-10-18 15:53:00 UTC

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

wifi: iwlegacy: 3945: free EEPROM data on remove

il3945_pci_probe() calls il_eeprom_init(), which allocates memory for
the EEPROM data. The probe failure paths release this allocation with
il_eeprom_free(), but the remove path does not free it after a
successful probe.

As a result, the EEPROM data is leaked when the PCI device is removed.

Free the EEPROM data in il3945_pci_remove() before releasing the
mac80211 hardware structure.

This issue was found by manual code inspection.

Comment 1 Mauro Matteo Cascella 2026-10-22 10:25:54 UTC

Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98710.mbox