Bug 2451179 (CVE-2026-23290)

Summary:	CVE-2026-23290 kernel: net: usb: pegasus: validate USB endpoints
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:	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 pegasus driver. A malicious USB device can exploit this vulnerability by not presenting the expected number and types of USB endpoints. This lack of proper validation causes the driver to blindly access uninitialized endpoints, leading to a system crash 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 2026-03-25 11:03:01 UTC

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

net: usb: pegasus: validate USB endpoints

The pegasus driver should validate that the device it is probing has the
proper number and types of USB endpoints it is expecting before it binds
to it.  If a malicious device were to not have the same urbs the driver
will crash later on when it blindly accesses these endpoints.

Comment 1 Alexander B 2026-03-25 17:53:57 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026032525-CVE-2026-23290-af97@gregkh/T