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Anbox kernel modules

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Anthony 96d5d960fe binder: fix NULL lock dereference in shrinker on Linux >= 6.13 Since Linux 6.13 the list_lru walk callback no longer receives the lru lock; it lives in struct list_lru_one. binder_alloc_free_page_no_lock() passes NULL as the lock, so binder_alloc_free_page() ends up calling spin_unlock(NULL) as soon as kswapd runs the binder shrinker: BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:_raw_spin_unlock+0x9/0x40 Call Trace: binder_alloc_free_page+0xe1/0x360 [binder_linux] __list_lru_walk_one+0xdf/0x230 list_lru_walk_node+0x52/0x230 binder_shrink_scan+0xa7/0x100 [binder_linux] do_shrink_slab+0x154/0x3a0 ... kswapd+0x1e2/0x360 The machine then hangs, typically under memory pressure, right after resuming from suspend, or while writing a hibernation image. Fall back to &lru->lock when no lock is passed, as upstream binder does.		2026-10-03 00:02:40 +02:00
binder	binder: fix NULL lock dereference in shrinker on Linux >= 6.13	2026-10-03 00:02:40 +02:00
debian	Remove ashmem	2025-08-01 07:22:20 +02:00
scripts	Remove ashmem	2025-08-01 07:22:20 +02:00
.gitignore	Update binder to the latest version	2021-09-26 18:54:51 +02:00
.travis.yml	travis: Add kernel v5.4	2020-01-01 20:29:30 +01:00
99-anbox.rules	Remove ashmem	2025-08-01 07:22:20 +02:00
anbox.conf	Remove ashmem	2025-08-01 07:22:20 +02:00
INSTALL.sh	Add old static symlinks needed by gbinder (waydroid)	2026-04-20 06:29:36 +02:00
README.md	Remove ashmem	2025-08-01 07:22:20 +02:00
UNINSTALL.sh	Add old static symlinks needed by gbinder (waydroid)	2026-04-20 06:29:36 +02:00

README.md

Anbox Kernel Module

This repository contains the kernel module necessary to run the Anbox Android container runtime. They're split out of the original Anbox repository to make packaging in various Linux distributions easier.

Install Instruction

You need to have dkms and linux-headers on your system. You can install them by sudo apt install dkms or sudo yum install dkms (dkms is available in epel repo for CentOS).

Package name for linux-headers varies on different distributions, e.g. linux-headers-generic (Ubuntu), linux-headers-amd64 (Debian), kernel-devel (CentOS, Fedora), kernel-default-devel (openSUSE).

You can either run ./INSTALL.sh script to automate the installation steps or follow them manually below:

First install the configuration files:

 sudo cp anbox.conf /etc/modules-load.d/
 sudo cp 99-anbox.rules /lib/udev/rules.d/

Then copy the module sources to /usr/src/:

 sudo cp -rT binder /usr/src/anbox-binder-1

Finally use dkms to build and install:
```
 sudo dkms install anbox-binder/1
```

You can verify by loading these module and checking the created device:

 sudo modprobe binder_linux
 lsmod | grep -e binder_linux
 ls -alh /dev/binder

You are expected to see output like:

binder_linux          114688  0
crw-rw-rw- 1 root root 511,  0 Jun 19 16:30 /dev/binder

Uninstall Instructions

ou can either run ./UNINSTALL.sh script to automate the installation steps or follow them manually below:

First use dkms to remove the module:
```
 sudo dkms remove anbox-binder/1
```
Then remove the module sources from /usr/src/:
```
 sudo rm -rf /usr/src/anbox-binder-1
```

Finally remove the configuration files:

 sudo rm -f /etc/modules-load.d/anbox.conf
 sudo rm -f /lib/udev/rules.d/99-anbox.rules

You must then restart your device. You can then verify module was removed by trying to load the module and checking the created device:

 sudo modprobe binder_linux
 lsmod | grep -e binder_linux
 ls -alh /dev/binder

You are expected to see output like:

modprobe: FATAL: Module binder_linux not found in directory /lib/modules/6.0.2-76060002-generic
ls: cannot access '/dev/binder': No such file or directory

Packaging:

Debian/Ubuntu:

sudo apt-get install devscripts dh-dkms -y 
git log --pretty=" -%an<%ae>:%aI - %s" > ./debian/changelog
debuild -i -us -uc -b 
ls -lrt ../anbox-modules-dkms_*.deb