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DivestOS updates (#1359)

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Signed-off-by: Daniel Gray <dng@disroot.org>
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Tad 2022-05-29 16:51:15 +00:00 committed by Daniel Gray
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@ -65,16 +65,17 @@ CalyxOS only [supports](https://calyxos.org/docs/guide/device-support/) Google P
DivestOS inherits many [supported devices](https://divestos.org/index.php?page=devices&base=LineageOS) from LineageOS. It has signed builds, making it possible to have [verified boot](https://source.android.com/security/verifiedboot) on some non-Pixel devices.
[:octicons-home-16: Homepage](https://divestos.org){ .md-button .md-button--primary }
[:pg-tor:](http://divestoseb5nncsydt7zzf5hrfg44md4bxqjs5ifcv4t7gt7u6ohjyyd.onion){ .card-link title=Onion }
[:octicons-eye-16:](https://divestos.org/index.php?page=privacy_policy){ .card-link title="Privacy Policy" }
[:octicons-info-16:](https://divestos.org/index.php?page=faq){ .card-link title=Documentation}
[:octicons-code-16:](https://github.com/divested-mobile){ .card-link title="Source Code" }
[:octicons-heart-16:](https://divested.dev/index.php?page=donate){ .card-link title=Contribute }
DivestOS has automated kernel vulnerability ([CVE](https://en.wikipedia.org/wiki/Common_Vulnerabilities_and_Exposures)) [patching](https://gitlab.com/divested-mobile/cve_checker), fewer proprietary blobs, a custom [hosts](https://divested.dev/index.php?page=dnsbl) file, and [F-Droid](https://www.f-droid.org) as the app store. It includes [UnifiedNlp](https://github.com/microg/UnifiedNlp) for network location. Its hardened WebView, [Mulch](https://gitlab.com/divested-mobile/mulch), enables [CFI](https://en.wikipedia.org/wiki/Control-flow_integrity) for all architectures and includes [network state partitioning](https://developer.mozilla.org/en-US/docs/Web/Privacy/State_Partitioning).
DivestOS has automated kernel vulnerability ([CVE](https://en.wikipedia.org/wiki/Common_Vulnerabilities_and_Exposures)) [patching](https://gitlab.com/divested-mobile/cve_checker), fewer proprietary blobs, a custom [hosts](https://divested.dev/index.php?page=dnsbl) file, and [F-Droid](https://www.f-droid.org) as the app store. Its hardened WebView, [Mulch](https://gitlab.com/divested-mobile/mulch), enables [CFI](https://en.wikipedia.org/wiki/Control-flow_integrity) for all architectures and [network state partitioning](https://developer.mozilla.org/en-US/docs/Web/Privacy/State_Partitioning), and receives out-of-band updates.
DivestOS also includes kernel patches from GrapheneOS and enables all available kernel security features via [defconfig hardening](https://github.com/Divested-Mobile/DivestOS-Build/blob/master/Scripts/Common/Functions.sh#L758). All kernels newer than version 3.4 include full page [sanitization](https://lwn.net/Articles/334747/) and all ~22 Clang-compiled kernels have [`-ftrivial-auto-var-init=zero`](https://reviews.llvm.org/D54604?id=174471) enabled.
DivestOS implements some system hardening patches originally developed for GrapheneOS. DivestOS 16.0, 17.1, and 18.1 implements GrapheneOS's [`INTERNET`](https://developer.android.com/training/basics/network-ops/connecting) permission toggle, [hardened memory allocator](https://github.com/GrapheneOS/hardened_malloc), [exec-spawning](android/grapheneos-vs-calyxos.md#additional-hardening), [JNI](https://en.wikipedia.org/wiki/Java_Native_Interface) [constification](https://en.wikipedia.org/wiki/Const_(computer_programming)), and partial [bionic](https://en.wikipedia.org/wiki/Bionic_(software)) hardening patchsets. 17.1 and 18.1 feature GrapheneOS's per-network full [MAC randomization](https://en.wikipedia.org/wiki/MAC_address#Randomization) option, and [`ptrace_scope`](https://www.kernel.org/doc/html/latest/admin-guide/LSM/Yama.html) control, and automatic reboot/Wi-Fi/Bluetooth [timeout options](https://grapheneos.org/features).
DivestOS implements some system hardening patches originally developed for GrapheneOS. DivestOS 16.0 and higher implements GrapheneOS's [`INTERNET`](https://developer.android.com/training/basics/network-ops/connecting) and SENSORS permission toggle, [hardened memory allocator](https://github.com/GrapheneOS/hardened_malloc), [exec-spawning](android/grapheneos-vs-calyxos.md#additional-hardening), [JNI](https://en.wikipedia.org/wiki/Java_Native_Interface) [constification](https://en.wikipedia.org/wiki/Const_(computer_programming)), and partial [bionic](https://en.wikipedia.org/wiki/Bionic_(software)) hardening patchsets. 17.1 and higher features GrapheneOS's per-network full [MAC randomization](https://en.wikipedia.org/wiki/MAC_address#Randomization) option, [`ptrace_scope`](https://www.kernel.org/doc/html/latest/admin-guide/LSM/Yama.html) control, and automatic reboot/Wi-Fi/Bluetooth [timeout options](https://grapheneos.org/features).
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