PR_SET_NO_NEW_PRIVS(2const) PR_SET_NO_NEW_PRIVS(2const) PR_SET_NO_NEW_PRIVS - no_new_privs (libc -lc) #include /* PR_* */ #include int prctl(PR_SET_NO_NEW_PRIVS, 1L, 0L, 0L, 0L); no_new_privs . no_new_privs 1 execve(2) execve(2) ( set-user-ID set-group-ID ). no_new_privs. fork(2) clone(2) execve(2). 0. -1 errno . EINVAL 1L. /proc/pid/status 4.10 no_new_privs (thread) NoNewPrivs . . 3.5. prctl(2), PR_GET_NO_NEW_PRIVS(2const), seccomp(2) Documentation/userspace-api/ no_new_privs.rst. 3 . . : . 6.18 8 2026 PR_SET_NO_NEW_PRIVS(2const)