Bug 2468237 (CVE-2026-43430)

Summary:	CVE-2026-43430 kernel: usb: yurex: fix race in probe
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	rhel-process-autobot, 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 yurex USB driver. A race condition occurs during the device probing process, where internal descriptor data can be overwritten before proper initialization. This vulnerability could lead to data corruption or unexpected system behavior, impacting the stability and integrity of the system.	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 2026-05-08 15:06:22 UTC

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

usb: yurex: fix race in probe

The bbu member of the descriptor must be set to the value
standing for uninitialized values before the URB whose
completion handler sets bbu is submitted. Otherwise there is
a window during which probing can overwrite already retrieved
data.

Comment 1 Keith Grant 2026-05-08 23:36:19 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050850-CVE-2026-43430-a1d8@gregkh/T