PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/01121e39ef537289926ae6f5374dce92c796d863
- https://git.kernel.org/stable/c/194781229d4cbc804b8ded13156eb8addce87d6c
- https://git.kernel.org/stable/c/bdecd912e99acfd61507f1720d3f4eed1b3418d8
- https://git.kernel.org/stable/c/e65027fdebbacd40595e96ef7b5d2418f71bddf2
- https://git.kernel.org/stable/c/f44b799603a9b5d2e375b0b2d54dd0b791eddfc2
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49668.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49668