Dec 17 23:24:36 g0n kernel: [17637.098763] grsec: (miro:U:/usr/lib64/firefox/firefox) exec of /usr/lib64/firefox/firefox (firefox ) by /usr/lib64/firefox/firefox[bash:11286] uid/euid:1000/1000 gid/egid:1000/1000, parent /bin/bash[bash:11257] uid/euid:1000/1000 gid/egid:1000/1000
Dec 17 23:24:40 g0n kernel: [17640.518044] grsec: (miro:U:/usr/lib64/firefox/firefox) denied access to hidden file /dev/mapper/root by /usr/lib64/firefox/firefox[Cache2 I/O:11307] uid/euid:1000/1000 gid/egid:1000/1000, parent /bin/bash[bash:11257] uid/euid:1000/1000 gid/egid:1000/1000

... [the above line repeats three more times] ...

Dec 17 23:24:43 g0n kernel: [17643.600268] grsec: more alerts, logging disabled for 10 seconds
Dec 17 23:24:46 g0n kernel: [17646.894560] PAX: execution attempt in: <anonymous mapping>, 388040c2000-388040c9000 388040c2000
Dec 17 23:24:46 g0n kernel: [17646.894564] PAX: terminating task: /usr/lib64/firefox/firefox(Compositor):11326, uid/euid: 1000/1000, PC: 00000388040c3000, SP: 00000387d9ef6498
Dec 17 23:24:46 g0n kernel: [17646.894568] PAX: bytes at PC: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 81 ec 68 03 00 00 
Dec 17 23:24:46 g0n kernel: [17646.894577] PAX: bytes at SP-8: 00000387ccb4e660 00000387d8c4e56f 00000387cd672ce8 0000000000000000 0000000000000000 0000000000000000 00000387c940e700 0000000602ef219a 00000387d9ef6610 00000387cc750800 00000387d9ef6730