Bug 2312062 (CVE-2024-46674)

Summary:	CVE-2024-46674 kernel: usb: dwc3: st: fix probed platform device ref count on probe error path
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	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2312175
Bug Blocks:

Description OSIDB Bzimport 2024-09-13 06:20:36 UTC

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

usb: dwc3: st: fix probed platform device ref count on probe error path

The probe function never performs any paltform device allocation, thus
error path "undo_platform_dev_alloc" is entirely bogus.  It drops the
reference count from the platform device being probed.  If error path is
triggered, this will lead to unbalanced device reference counts and
premature release of device resources, thus possible use-after-free when
releasing remaining devm-managed resources.

Comment 1 Michal Findra 2024-09-13 11:22:36 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091335-CVE-2024-46674-93ed@gregkh/T