List Out-of-Tree modules in Linux

cat /proc/modules, where:

• O means TAINT_OOT_MODULE (out-of-tree module)
• E means TAINT_UNSIGNED_MODULE (unsigned module)
• + means MODULE_STATE_COMING (module-is-being-loaded)
• - means MODULE_STATE_GOING (module-is-being-unloaded)

References

• https://github.com/torvalds/linux/blob/71d7b52cc33bc3b6697cce8a0a5ac9032f372e47/kernel/module/main.c#L3217
• https://github.com/torvalds/linux/blob/71d7b52cc33bc3b6697cce8a0a5ac9032f372e47/kernel/module/main.c#L875
• https://github.com/torvalds/linux/blob/master/kernel/panic.c#L477