Riskcovery

CVE-2022-49306

usb: dwc3: host: Stop setting the ACPI companion

State
Published
Severity
Not scored
Published
Feb 26, 2025
Updated
May 11, 2026
Reserved
Feb 26, 2025

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 11c39809070fc0eb3aacb0d9ee71cd3678144f66 to before d7f35934f7ab67bfd9adabc84207e59da9c19108Affected
  • 11c39809070fc0eb3aacb0d9ee71cd3678144f66 to before 9c185fde906a48368bd2d2a8c17d4b6fb3d670afAffected
  • 11c39809070fc0eb3aacb0d9ee71cd3678144f66 to before 7fd069d65da2e20b1caec3b7bcf9dfbe28c04bb2Affected
LinuxLinux
  • 5.7Affected
  • before 5.7Not affected
  • 5.17.15 through 5.17.*Not affected
  • 5.18.4 through 5.18.*Not affected
  • 5.19 and laterNot affected

References

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