CVE-2022-49668 PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events

What is CVE-2022-49668?

CVE-2022-49668 is a medium-severity vulnerability in Linux kernel, published on 26 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events

of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. This function only calls of_node_put() in normal path, missing it in error paths. Add missing of_node_put() to avoid refcount leak.

Which versions are affected by CVE-2022-49668?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49668?

Apply the vendor's patch.

Is CVE-2022-49668 being exploited?

There is no known exploitation of CVE-2022-49668 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-49668, GHSA-vj95-vxg7-4x7v, UBUNTU-CVE-2022-49668.