CVE-2022-50113: ASoc: audio-graph-card2: Fix refcount leak bug in __graph_get_type()

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: ASoc: audio-graph-card2: Fix refcount leak bug in __graph_get_type() We should call of_node_put() for the reference before its replacement as it returned by of_get_parent() which has increased the refcount. Besides, we should also call of_node_put() before return.

Affected products

Linux kernel: from 5.16 before 5.18.18; from 5.19 before 5.19.2 — fixed in 5.18.18, 5.19.2

How to fix

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

References

https://git.kernel.org/stable/c/3bb0c0b5f0f866fc3785380e0860dc37ceacf342
https://git.kernel.org/stable/c/7a63a8c253bf57dfd9fa3ee2a7f1a3727505f947
https://git.kernel.org/stable/c/eda26893dabfc6da7a1e1ff5f8628ed9faab3ab9

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