Hi everyone, Kernel version 3.17.8 I am trying to build a skeleton LSM module, but I am not having much luck so far. The problem seems to be that the LSM init function is never called. I am selecting my helloworld LSM when building the kernel and it is set as default (checked and re-checked in menuconfig + in the file). The build is going fine (my module is built as I would expect). The rest of the building procedure goes fine. I reboot, the new image works just fine except my LSM is not in (nor any other, it seems, for that matter). Here is the init function: static __init int hw_init(void){ /* avoid security registration races */ if (!security_module_enable(&hw_ops)){ printk(KERN_INFO "hw: Disabled at boot.\n"); return 0; } printk(KERN_INFO "hw: Initializing.\n"); if (register_security(&hw_ops)) panic("hw: Unable to register with kernel.\n"); else printk(KERN_INFO "hw: registered with the kernel.\n"); return 0; } security_initcall(hw_init); I looked at how it was done in SELinux and the other security module and I don't seem to be doing things differently or incorrectly. I checked the log level just in case and that's not the issue either. I am tempted to say the problem come from my building procedure/configuration, rather than the module/code in itself (the dist on top of the kernel is fedora21). I have been at it for a while now and any help would be most welcomed. Thank you in advance. Regards, Thomas