What’s Vulnerable › Vulnerabilities

CVE-2022-50139: usb: aspeed-vhub: Fix refcount leak bug in ast_vhub_init_desc()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-06-17

Description

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.

Affected products

• Linux kernel: from 5.8 before 5.10.137; from 5.11 before 5.15.61; from 5.16 before 5.18.18; from 5.19 before 5.19.2 — fixed in 5.10.137, 5.15.61, 5.18.18, 5.19.2

How to fix

Upgrade to a fixed version: Linux kernel 5.10.137, 5.15.61, 5.18.18, 5.19.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0e0a40c803643f4edc30f0660f2f3bea4d57a99a
• https://git.kernel.org/stable/c/220fafb4ed04187e9c17be4152da5a7f2ffbdd8c
• https://git.kernel.org/stable/c/3503305225ca24c3229414c769323fb8bf39b4bf
• https://git.kernel.org/stable/c/4070f3c83cd28267f469a59751480ad39435f26a
• https://git.kernel.org/stable/c/e6db5780c2bf6e23be7b315809ef349b4b4f2213

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