zygisk: make built-in Zygisk work on Meta Quest (lazy per-trust partition zygotes) - #9941
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zygisk: make built-in Zygisk work on Meta Quest (lazy per-trust partition zygotes)#9941AbandonedAccount1111 wants to merge 1 commit into
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…tion zygotes) Meta Quest (Horizon OS) does not start the zygote the normal way: ro.zygote= zygote64_stub32 launches /system/bin/stub_zygote, which forks a separate app_process64 zygote PER security partition (system/trusted vs untrusted-app), driven by hzos_security_zygote_partitioning_policy. The untrusted-app partition zygote -- the one that forks 3rd-party apps and the Magisk manager -- is spawned LAZILY, after boot-complete. magiskd sets ro.dalvik.vm.native.bridge=libzygisk.so during boot but clears it again at boot-complete (ZygiskState::reset). On a normal device every zygote has already started by then, so clearing it is harmless. On Quest the untrusted-app partition zygote reads the (now cleared) property when it finally execve's app_process64, never loads libzygisk.so, so 3rd-party apps + the Magisk manager are never injected -> "Zygisk: N/A". Fix (daemon.rs): on the boot-complete reset(restore=true) path, reset the crash counter but KEEP native.bridge set (set_prop) instead of clearing it (restore_prop); only the >3-crash rollback path still clears. The lazily-spawned partition zygotes then load the loader when they start. Also (hook.cpp), robustness fixes the loader needs on this device: - Wrap hook_zygote_jni()'s JNI locals in PushLocalFrame(64)/PopLocalFrame so leaking locals can't trip ART's "non-empty local reference table" abort, and bail if GetEnv returns no env. - Make the strdup(ZygoteInit) trigger a substring match + add an idempotency guard so the zygote hooks install exactly once per process. Verified on Quest 3 (Android 14): system_server + every app fork is intercepted and LSPosed loads end-to-end.
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Superseded by #9968 (account migration). |
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…On Wed, Jul 22, 2026, 9:19 AM AbandonedAccount1111 ***@***.***> wrote:
Closed #9941 <#9941>.
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Superseded by #9968 (account migration).