Version 4.14.117 was part of a regular update cycle to address vulnerabilities identified in Android Security Bulletins Android common kernels | Android Open Source Project
.117 (A specific maintenance patch released in mid-2019)
The primary Inter-Process Communication (IPC) mechanism for Android.
# On device adb shell uname -a # Expected: Linux localhost 4.14.117-... #1 SMP PREEMPT ... kernel version 4.14.117 android
: This version exemplifies Google's "Upstream First" philosophy, where security fixes are pushed to the main Linux kernel and then pulled into the Android Common Kernel (ACK) The Developer's Perspective
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The stability of releases like 4.14.117 laid the groundwork for the modern GKI (Generic Kernel Image) project found in newer Android iterations. Developers studying 4.14.117 can easily track how Google transitioned from heavily customized, device-specific kernels toward a unified structure, making it a textbook example of mobile kernel engineering. Version 4
Android relies heavily on the Binder Inter-Process Communication (IPC) mechanism. Version 4.14.117 integrates critical fixes to prevent memory leaks and privilege escalation bugs within the Binder driver. 2. Energy-Aware Scheduling (EAS) Refinements
Proper memory management prevents background apps from closing aggressively. Kernel 4.14.117 supports explicit memory pressure stalls (PSI), allowing Android's user-space LMKD to make smarter decisions about which background processes to terminate, preserving multitasking capabilities. Why Kernel 4.14.117 Matters for Custom ROMs and Modding
Developers frequently fork the 4.14.117 kernel source to inject custom features, including: device-specific kernels toward a unified structure
⚠️ Do not expose a device with 4.14.117 to untrusted networks or app environments without additional mitigations (seccomp, SELinux enforcing, hardened userspace).
Before diving into the specifics of 4.14.117, it’s essential to understand what the numbers mean.
This release integrates various fixes for the Linux networking stack, protecting Android users from remote code execution or denial-of-service (DoS) attacks when connected to malicious Wi-Fi networks.