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CVE-2022-50194: soc: qcom: aoss: Fix refcount leak in qmp_cooling_devices_register

• 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: soc: qcom: aoss: Fix refcount leak in qmp_cooling_devices_register Every iteration of for_each_available_child_of_node() decrements the reference count of the previous node. When breaking early from a for_each_available_child_of_node() loop, we need to explicitly call of_node_put() on the child node. Add missing of_node_put() to avoid refcount leak.

Affected products

• Linux kernel: from 5.4 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; from 5.19 before 5.19.2 — fixed in 5.10.137, 5.15.61, 5.18.18, 5.19.2, 5.4.211

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/053543ac1d095132fcfd1263805d6e25afbdc6a8
• https://git.kernel.org/stable/c/591f0697ccbac33760d3bb1ad96a5ba2b76ae9f0
• https://git.kernel.org/stable/c/97713ed9b6cc4abaa2dcc8357113c56520dc6d7f
• https://git.kernel.org/stable/c/bc73c72a856c26df7410ddf15f42257cb4960fe9
• https://git.kernel.org/stable/c/ca83c61a6ccf3934cf8d01d5ade30a5034993a86
• https://git.kernel.org/stable/c/e6e0951414a314e7db3e9e24fd924b3e15515288

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