What’s Vulnerable › Vulnerabilities

CVE-2022-49439: powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

Affected products

• Linux kernel: from 3.3 before 4.14.283; from 4.15 before 4.19.247; from 4.20 before 5.4.198; from 5.5 before 5.10.121; from 5.11 before 5.15.46; from 5.16 before 5.17.14 — fixed in 4.14.283, 4.19.247, 5.10.121, 5.15.46, 5.17.14, 5.18.3

How to fix

Upgrade to a fixed version: Linux kernel 4.14.283, 4.19.247, 5.10.121, 5.15.46. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/46fd994763cf6884b88a2da712af918f3ed54d7b
• https://git.kernel.org/stable/c/51e25fbf20c9152d84a34b7afac15a41fe5c9116
• https://git.kernel.org/stable/c/5607a77a365df8c0fd5ff43ac424812b95775527
• https://git.kernel.org/stable/c/5b8aa2ba38c010f47c965dd9bb5a8561813ed649
• https://git.kernel.org/stable/c/7b668a59ddfb32727e39b06fdf52b28e58c684e0
• https://git.kernel.org/stable/c/bcb6c4c5eb4836a21411dfe8247bf9951eb6e7c3
• https://git.kernel.org/stable/c/c70dd353d37158e06bf8d450d4b31a7091609924
• https://git.kernel.org/stable/c/fcee96924ba1596ca80a6770b2567ca546f9a482

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