Bug 2451238 (CVE-2026-23365)

Summary:	CVE-2026-23365 kernel: net: usb: kalmia: 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:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in the Linux kernel's kalmia USB driver. This vulnerability occurs because the driver does not properly validate the number and types of USB endpoints when a device is connected. A local attacker with a specially crafted malicious USB device could exploit this flaw, causing the kalmia driver to crash. This leads to a Denial of Service (DoS) on the affected system.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2026-03-25 11:06:22 UTC

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

net: usb: kalmia: validate USB endpoints

The kalmia 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 14:06:03 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026032539-CVE-2026-23365-76d3@gregkh/T