// For flags

CVE-2022-50139

usb: aspeed-vhub: Fix refcount leak bug in ast_vhub_init_desc()

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved: usb: aspeed-vhub: Fix refcount leak bug in ast_vhub_init_desc() We should call of_node_put() for the reference returned by
of_get_child_by_name() which has increased the refcount.

A flaw was found in the aspeed-vhub module in the Linux kernel. A missing decrement of the reference count will cause a memory leak, potentially impacting system performance and resulting in a denial of service.

In the Linux kernel, the following vulnerability has been resolved: usb: aspeed-vhub: Fix refcount leak bug in ast_vhub_init_desc() We should call of_node_put() for the reference returned by of_get_child_by_name() which has increased the refcount.

This update provides the initial livepatch for this kernel update. This update does not contain any fixes and will be updated with livepatches later.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2025-06-18 CVE Reserved
  • 2025-06-18 CVE Published
  • 2025-06-18 CVE Updated
  • 2025-07-20 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-911: Improper Update of Reference Count
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.8 < 5.10.137
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.8 < 5.10.137"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.8 < 5.15.61
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.8 < 5.15.61"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.8 < 5.18.18
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.8 < 5.18.18"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.8 < 5.19.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.8 < 5.19.2"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.8 < 6.0
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.8 < 6.0"
en
Affected