CREATE TABLE table_18853 ("Distribution" CLOB, "Compile time buffer checks" CLOB, "Mandatory access control" CLOB, "Software executable space protection" CLOB, "grsecurity" CLOB, "RSBAC" CLOB)

what's the grsecurity with dbeingtribution being debian / ubuntu
SELECT "grsecurity" FROM table_18853 WHERE "Distribution" = 'Debian / Ubuntu'
SELECT "grsecurity" FROM "table_18853" WHERE "Distribution" = 'Debian / Ubuntu'