What’s Vulnerable › Vulnerabilities

CVE-2022-50153: usb: host: Fix refcount leak in ehci_hcd_ppc_of_probe

• 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: host: Fix refcount leak in ehci_hcd_ppc_of_probe of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.

Affected products

• Linux kernel: from 2.6.29 before 4.14.291; from 4.15 before 4.19.256; from 4.20 before 5.4.211; from 5.5 before 5.10.137; from 5.11 before 5.15.61; from 5.16 before 5.18.18 — fixed in 4.14.291, 4.19.256, 5.10.137, 5.15.61, 5.18.18, 5.19.2

How to fix

Upgrade to a fixed version: Linux kernel 4.14.291, 4.19.256, 5.10.137, 5.15.61. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/038453b17fe30ea38f0f3c916e2ae2b7f8cef84e
• https://git.kernel.org/stable/c/3a50c917c67dd0bc39c14de4a8b75a1d50fdce66
• https://git.kernel.org/stable/c/585d22a5624ef2b540c337665c72fea8cd33db50
• https://git.kernel.org/stable/c/8cbc3870ff356366842af3228dd8e7bc278e5edd
• https://git.kernel.org/stable/c/8e51a512c1079109bec4c80915e647692d583e79
• https://git.kernel.org/stable/c/b5c5b13cb45e2c88181308186b0001992cb41954
• https://git.kernel.org/stable/c/b9c4a480cb0ada07154debf681454cbb55e30b59
• https://git.kernel.org/stable/c/c0a4b454486b23bb4d94ce49f490830ecc354040

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