You’d have to reinstall the su binary itself I guess
It just changes the page cache for the su binary, a reboot will revert it.
No need to reboot:
sync && echo 3 >/proc/sys/vm/drop_caches
It just changes the page cache for the su binary, a reboot will revert it.
No need to reboot:
sync && echo 3 >/proc/sys/vm/drop_caches