[Feature Request] Unable to Build KernelSU Module for Waydroid's Linux Kernel on x86_64

[TMXQWQ]

Describe your problem.

Waydroid utilizes the Linux kernel and runs on x86_64 architecture. However, I’ve encountered difficulty finding a method to build the KernelSU kernel module specifically for loading into Waydroid’s Linux environment.
I attempted to build KernelSU (version v0.95) on Arch Linux (x86_64) following standard procedures but encountered failures. The build process did not complete successfully.
Could KernelSU support Waydroid.
This would help integrate KernelSU functionality into Waydroid environment effectively.

Environment:
[ ] Host OS: Arch Linux (x86_64)
[ ] KernelSU version attempted: v0.95

[hmtheboy154]

If you don't expect LKM
https://github.com/hmtheboy154/KernelSU/tree/6.15
https://github.com/android-generic/kernel-zenith/commits/6.15_KSU/

[TMXQWQ]

I already compiled Linux kernel v6.6 with KernelSU but cannot export ksu.ko because errors like
ERROR: modpost: "policydb_filenametr_search" [drivers/kernelsu/kernelsu.ko] undefined!
and my kernel version is 6.16 archlinux kernel
thanks for your reply ww
(I can't speak English very well QwQ)

[hmtheboy154]

People can be able to build KSU for WayDroid before. The thing is none uses LKM.
With the recent changes in mainline, it is like..... impossible without massive changes. That's why I told you that Don't expect LKM, build the full kernel package instead.

[TMXQWQ]

I builded linux kernel v6.16-arch successfully.
But when I booted it, it paniced.

[    1.154892] Kernel panic - not syncing: security_add_hooks Too many LSMs registered.
[    1.154905] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.8-arch1 #6 PREEMPT(voluntary) 
[    1.154909] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS Arch Linux 1.17.0-1-1 04/01/2014
[    1.154917] Call Trace:
[    1.154932]  <TASK>
[    1.154942]  dump_stack_lvl+0x4d/0x70
[    1.154959]  panic+0x10c/0x2bd
[    1.154967]  security_add_hooks+0x41/0xf0
[    1.154975]  ? __pfx_kernelsu_init+0x10/0x10
[    1.154978]  kernelsu_init+0x5d/0x90
[    1.154982]  do_one_initcall+0x56/0x220
[    1.154989]  kernel_init_freeable+0x1c9/0x210
[    1.154997]  ? __pfx_kernel_init+0x10/0x10
[    1.155001]  kernel_init+0x15/0x130
[    1.155005]  ret_from_fork+0xc1/0x100
[    1.155012]  ? __pfx_kernel_init+0x10/0x10
[    1.155016]  ret_from_fork_asm+0x1a/0x30
[    1.155021]  </TASK>
[    1.155541] Shutting down cpus with NMI
[    1.155541] Kernel Offset: 0x38a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[    1.155541] ---[ end Kernel panic - not syncing: security_add_hooks Too many LSMs registered. ]---

---

And I used to build kernel v6.6 and boot successfully
But when I run ksud debug su , there's a error and cannot get superuser.

# ksud debug su
[   23.955056] KernelSU: option: 0xdeadbeef, cmd: 0
[ERROR ksud::cli] Error: Operation not permitted (os error 1)
Error: Operation not permitted (os error 1)

# dmesg | grep "KernelSU"
[    1.194180] KernelSU: *************************************************************
[    1.194181] KernelSU: **     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE    **
[    1.196859] KernelSU: **                                                         **
[    1.198983] KernelSU: **         You are running KernelSU in DEBUG mode          **
[    1.201093] KernelSU: **                                                         **
[    1.202851] KernelSU: **     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE    **
[    1.204603] KernelSU: *************************************************************
[    1.207239] KernelSU: sucompat: register___x64_sys_execve kprobe: 0
[    1.210972] KernelSU: sucompat: register___x64_sys_faccessat kprobe: 0
[    1.213960] KernelSU: sucompat: register___x64_sys_newfstatat kprobe: 0
[    1.216727] KernelSU: sucompat: register_pts_unix98_lookup kprobe: 0
[    1.218421] KernelSU: ksud: execve_kp: 0
[    1.219759] KernelSU: ksud: vfs_read_kp: 0
[    1.221286] KernelSU: ksud: input_event_kp: 0
[   23.955056] KernelSU: option: 0xdeadbeef, cmd: 0

I don't know why it cannot run.Can you help me?ww

[hmtheboy154]

I builded linux kernel v6.16-arch successfully. But when I booted it, it paniced.

[    1.154892] Kernel panic - not syncing: security_add_hooks Too many LSMs registered.
[    1.154905] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.8-arch1 #6 PREEMPT(voluntary) 
[    1.154909] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS Arch Linux 1.17.0-1-1 04/01/2014
[    1.154917] Call Trace:
[    1.154932]  <TASK>
[    1.154942]  dump_stack_lvl+0x4d/0x70
[    1.154959]  panic+0x10c/0x2bd
[    1.154967]  security_add_hooks+0x41/0xf0
[    1.154975]  ? __pfx_kernelsu_init+0x10/0x10
[    1.154978]  kernelsu_init+0x5d/0x90
[    1.154982]  do_one_initcall+0x56/0x220
[    1.154989]  kernel_init_freeable+0x1c9/0x210
[    1.154997]  ? __pfx_kernel_init+0x10/0x10
[    1.155001]  kernel_init+0x15/0x130
[    1.155005]  ret_from_fork+0xc1/0x100
[    1.155012]  ? __pfx_kernel_init+0x10/0x10
[    1.155016]  ret_from_fork_asm+0x1a/0x30
[    1.155021]  </TASK>
[    1.155541] Shutting down cpus with NMI
[    1.155541] Kernel Offset: 0x38a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[    1.155541] ---[ end Kernel panic - not syncing: security_add_hooks Too many LSMs registered. ]---

https://github.com/android-generic/kernel-zenith/commits/6.15_KSU
#1785

And I used to build kernel v6.6 and boot successfully But when I run ksud debug su , there's a error and cannot get superuser.

# ksud debug su
[   23.955056] KernelSU: option: 0xdeadbeef, cmd: 0
[ERROR ksud::cli] Error: Operation not permitted (os error 1)
Error: Operation not permitted (os error 1)

# dmesg | grep "KernelSU"
[    1.194180] KernelSU: *************************************************************
[    1.194181] KernelSU: **     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE    **
[    1.196859] KernelSU: **                                                         **
[    1.198983] KernelSU: **         You are running KernelSU in DEBUG mode          **
[    1.201093] KernelSU: **                                                         **
[    1.202851] KernelSU: **     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE    **
[    1.204603] KernelSU: *************************************************************
[    1.207239] KernelSU: sucompat: register___x64_sys_execve kprobe: 0
[    1.210972] KernelSU: sucompat: register___x64_sys_faccessat kprobe: 0
[    1.213960] KernelSU: sucompat: register___x64_sys_newfstatat kprobe: 0
[    1.216727] KernelSU: sucompat: register_pts_unix98_lookup kprobe: 0
[    1.218421] KernelSU: ksud: execve_kp: 0
[    1.219759] KernelSU: ksud: vfs_read_kp: 0
[    1.221286] KernelSU: ksud: input_event_kp: 0
[   23.955056] KernelSU: option: 0xdeadbeef, cmd: 0

I don't know why it cannot run.Can you help me?ww

#2113
hmtheboy154/Darkmatter-kernel@fe9a9b4
android-generic/kernel-zenith@5648396

[TMXQWQ]

thanks ww.