Bug 2347702 (CVE-2022-49306) - CVE-2022-49306 kernel: usb: dwc3: host: Stop setting the ACPI companion
Summary: CVE-2022-49306 kernel: usb: dwc3: host: Stop setting the ACPI companion
Keywords:
Status: NEW
Alias: CVE-2022-49306
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:03 UTC by OSIDB Bzimport
Modified: 2025-05-05 14:59 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-02-26 03:03:45 UTC 
In the Linux kernel, the following vulnerability has been resolved:

usb: dwc3: host: Stop setting the ACPI companion

It is no longer needed. The sysdev pointer is now used when
assigning the ACPI companions to the xHCI ports and USB
devices.

Assigning the ACPI companion here resulted in the
fwnode->secondary pointer to be replaced also for the parent
dwc3 device since the primary fwnode (the ACPI companion)
was shared. That was unintentional and it created potential
side effects like resource leaks.
Comment 1 Avinash Hanwate 2025-02-26 14:30:57 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022635-CVE-2022-49306-a115@gregkh/T
Comment 4 Avinash Hanwate 2025-02-26 18:34:04 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022635-CVE-2022-49306-a115@gregkh/T
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