Vulnerability in PM / devfreq: exynos-ppmu
Summary
GSD-2022-1004229: PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events. Affects Kernel versions >= f262f28c147051e7aa6daaf4fb5996833ffadff4, < 194781229d4cbc804b8ded13156eb8addce87d6c. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The PM / devfreq package is a component of the Linux Kernel that manages the frequency scaling of devices. It provides a framework for dynamic frequency scaling of devices based on their usage patterns. The exynos-ppmu module within this package is responsible for managing the performance monitoring unit on Exynos SoCs. This unit monitors various events and provides information for power management decisions. However, a refcount leak vulnerability has been identified in the of_get_devfreq_events function of the exynos-ppmu module.
Vulnerability Detail
The vulnerability in the PM / devfreq: exynos-ppmu package is due to a refcount leak in the of_get_devfreq_events function. This can lead to a reference count imbalance, potentially causing memory leaks or use-after-free issues. An attacker with local access to the system may be able to exploit this vulnerability to escalate privileges or crash the system. The vulnerability was introduced in version v4.0 of the Linux Kernel and has been fixed in version v5.18.10.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no known workaround for this vulnerability.
Conclusion
The PM / devfreq: exynos-ppmu package in the Linux Kernel is vulnerable to a refcount leak issue. This vulnerability can potentially be exploited by an attacker to escalate privileges or crash the system. It is recommended to update the Linux Kernel to version v5.18.10 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
PM / devfreq is a component of the Linux Kernel that manages the frequency scaling of devices based on their usage patterns.
The exynos-ppmu module is responsible for managing the performance monitoring unit on Exynos SoCs.
The vulnerability can lead to memory leaks or use-after-free issues, potentially allowing an attacker to escalate privileges or crash the system.
To fix this vulnerability, update the Linux Kernel to version v5.18.10 or later.
No, there is no known workaround for this vulnerability.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
