Without paxctl -m /usr/bin/nspluginscan and paxctl -m /usr/bin/nspluginviewer, To detect or load adobe-flash does not work. /var/log/kern.log: Oct 23 02:18:07 moriramar-S000 kernel: grsec: denied RWX mprotect of /opt/Adobe/flash-player/plugin/libflashplayer.so by /usr/bin/nspluginscan[nspluginscan:26962] uid/euid:1000/1000 gid/egid:1000/1000, parent /usr/bin/nspluginscan[nspluginscan:26961] uid/euid:1000/1000 gid/egid:1000/1000 Oct 23 02:20:21 moriramar-S000 kernel: grsec: denied RWX mprotect of /opt/Adobe/flash-player/plugin/libflashplayer.so by /usr/bin/nspluginviewer[nspluginviewer:32168] uid/euid:1000/1000 gid/egid:1000/1000, parent /usr/bin/kdeinit4[konqueror:10586] uid/euid:1000/1000 gid/egid:1000/1000 I am not sure whether this is intended behaviour and did not test with any other nsplugins. Reproducible: Always