FUZZING ANDROID

The operational playbook for fuzzing Android, from Binder services to the Linux kernel, by Googles Android Security Team.

Android is three billion devices of hardened, audited, relentlessly defended code, and fuzzing brings it down anyway. The method is almost crude: bury the system in malformed input and wait for the rare case that cracks something open. A crash is the tell, and behind it is usually a way in.

This is the book from the Google engineers who do that for a living. Theyve fuzzed Androids Binder IPC, the Pixel modem, GPU drivers, and kernel components, and found root-level vulnerabilities the architecture was supposed to keep out of reach. Now they show you how they work.

Most fuzzing books stop at the concept. This one runs the campaign. Youll target the IPC layer with libFuzzer and AFL++, stand up a reproducible environment across emulators and real devices, instrument native code and system services for coverage, triage and reproduce crashes, and extend Syzkaller to reach new kernel drivers. Just as important, youll build the judgment that separates a fuzzer that finds bugs from one that only makes noise: which targets are worth your time, when to bypass runtime checks, and how to keep a campaign disciplined instead of chaotic.

No other book covers Android fuzzing from userspace services through the kernel. The existing titles stop at app-layer pentesting or teach general fuzzing with no Android specificity. This is the one written by the people who actually found the bugs.

With a foreword by David Kleidermacher, Googles VP of Platforms Security and Privacy.

For security researchers, OEM security engineers, and bug bounty hunters who target the worlds largest mobile platform and want the operational playbook rather than the tour.