If your kernel version ends with -perf , that means it’s a production (non-debug) kernel, typical for end-user devices.
All Android kernels are based on upstream Linux LTS kernels. Google combines these with Android-specific patches to form what are known as . For devices launching with Android 9, the core requirements explicitly state that any kernel based on the 4.14 LTS line must include the 4.14.42 release or higher . Kernel 4.14.117, released on May 7, 2019, meets this requirement, as it includes 75 patches on top of the baseline release. For Android 11, the 4.14 branch remained a valid "launch kernel" option alongside newer versions like 4.19 and 5.4.
New sensors, camera modules, or faster charging technologies require kernel-level drivers.
Deep Dive into Android Kernel Version 4.14.117: Security, Performance, and Evolution
represents a specific point in the development of the Linux 4.14 Long-Term Supported (LTS) kernel, which served as a foundational software layer for numerous Android devices released between 2017 and 2019. While newer versions like 5.10 or 6.1 now power modern flagship phones, 4.14.117 remains relevant for its role in system stability and security for legacy hardware. The Core Role of the Kernel in Android kernel version 4.14.117 android
Patch level 117 corresponds roughly to the security bulletin. This means the kernel includes fixes for critical CVEs such as:
If your phone runs Android 9 or 10 with kernel 4.14.117 and no security updates since 2019, a malicious app with minimal permissions could potentially exploit any of these kernel flaws to gain root access, spy on other apps, or brick the device. This is why security researchers strongly advise either:
It was a server farm. Racks and racks of blinking lights, stretching into an infinite, foggy distance.
Handling the "Binder" inter-process communication, which is unique to Android and allows different parts of the system to talk to each other safely. Key Features and Changes in 4.14.117 If your kernel version ends with -perf ,
The kernel acts as the vital bridge between your phone's hardware (CPU, camera, battery) and its software (apps and the Android OS). For version 4.14.117 on Android, its primary responsibilities include:
If you are looking to modify your device, tell me your and your current Android version . I can help you find out if a custom kernel update is available or guide you on how to safely back up your current boot image . Share public link
This kernel version improved the , which allows the Android OS to better understand the power consumption of CPU clusters (high-performance vs. efficiency cores). By allowing the scheduler to make better decisions, devices running 4.14.117 often saw improved battery standby times. 3. File System Advancements
If your device reads something like 4.14.117-lineageos-+ , it indicates your device is utilizing this specific point release reinforced with community patches. Conclusion For devices launching with Android 9, the core
For the technically curious, here is a snapshot of the impact that the Android common kernel version 4.14 had in just its first few months of development, compared to a mainline Linux kernel:
Android does not use a stock Linux kernel. Instead, Google maintains the Android Common Kernel (ACK), which adds mobile-specific code (such as the Binder IPC mechanism, Ashmem, and specific power-management patches) to the mainline Linux releases. Kernel 4.14.117 is a specific point-release within this pipeline. 2. Key Technical Features of Kernel 4.14 LTS
Despite security concerns, kernel 4.14.117 remains remarkably on older hardware. Why? Because it was the culmination of two years of refinement on the 4.14 branch.
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