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CVE-2022-49609: power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe

• 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: power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe of_find_matching_node_and_match() 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 3.18 before 4.9.325; from 4.10 before 4.14.290; from 4.15 before 4.19.254; from 4.20 before 5.4.208; from 5.5 before 5.10.134; from 5.11 before 5.15.58 — fixed in 4.14.290, 4.19.254, 4.9.325, 5.10.134, 5.15.58, 5.18.15

How to fix

Upgrade to a fixed version: Linux kernel 4.14.290, 4.19.254, 4.9.325, 5.10.134. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/493ceca3271316e74639c89ff8ac35883de64256
• https://git.kernel.org/stable/c/49fa778ee044b00471dd9ccae5f6a121fffea1ac
• https://git.kernel.org/stable/c/6689754b121bd487f99680280102b3a5cd7374af
• https://git.kernel.org/stable/c/71ab83ac65e2d671552374123bf920c1d698335a
• https://git.kernel.org/stable/c/78bdf732cf5d74d1c6ecda06830a91f80a4aef6f
• https://git.kernel.org/stable/c/80192eff64eee9b3bc0594a47381937b94b9d65a
• https://git.kernel.org/stable/c/a9ed3ad3a8d1dfbc829d86edb3236873a315db11
• https://git.kernel.org/stable/c/b4d224eec96a18fa8959512cd9e5b6a50bd16a41

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