SYD-SEC(1) General Commands Manual SYD-SEC(1) (NAME) syd-sec - seccomp Syd (SYNOPSIS) syd-sec [-ahikprsxAIKPRSX] {command [args...]} (DESCRIPTION) (securebits) JSON . [-aikprsx] . [-AIKPRSX] . [-aikprsxAIKRSX] . (OPTIONS) -h . -p, -P / no_new_privs . -r, -R / SECBIT_NOROOT. -s, -S / SECBIT_NO_SETUID_FIXUP. -k, -K / SECBIT_KEEP_CAPS. -a, -A / SECBIT_NO_CAP_AMBIENT_RAISE. -x, -X / SECBIT_EXEC_RESTRICT_FILE. -i, -I / SECBIT_EXEC_DENY_INTERACTIVE. (SECURE BITS) +----------------------+-----------------------+-----------------------+ | | | | | | | CAP_SETPCAP | |(Securebit) | | | +----------------------+-----------------------+-----------------------+ |NO_NEW_PRIVS | | | | | | | | | | | | | execve(2) | | | | | | | | | | | | | | | | | | | | | | | | ( | | | | | | | | | | | | | | | | set-user-ID/set-group-ID| | | | | | | | | | | | | | | | | | | | | | | | ).| | | | | | | | | | | | | | | | fork(2) clone(2) | | | | execve(2) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | . | | +----------------------+-----------------------+-----------------------+ |NOROOT | | | | | | | | | | | | | | | | | UID 0 | | | | | | | | | | | | | | | | | | | | | | | | exec/setuid | | | | | | | | . | | | | | | | | NOROOT_LOCKED | | | | | | | | | | | | NOROOT | | | | ( | | | | | | | | | | | | | | | | | | | | | | | | ). | | +----------------------+-----------------------+-----------------------+ |NO_SETUID_FIXUP | | | | | | | | | | | | | | | | | | | | | | | | | (permitted) | | | | | | | | (effective) | | | | | | | | (ambient) | | | | | | | | | | | | | | | | | | | | /| | | | (UIDs) | | | | | | | | | | | | | | | | | | | | | | | | | | | | .| | | | | | | | NO_SETUID_FIXUP_LOCKED| | | | | | | | | | | | | | | | NO_SETUID_FIXUP | | | | ( | | | | | | | | | | | | | | | | | | | | | | | | ). | | +----------------------+-----------------------+-----------------------+ |KEEP_CAPS | | | | | | | | | | | | | | | | | (permitted | | | | capabilities) | | | | | | | | | | | | | | | | | | | | | | | | (UIDs) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | execve(2) | | | | . | | | | | | | | KEEP_CAPS_LOCKED | | | | | | | | | | | | KEEP_CAPS | | | | ( | | | | | | | | | | | | | | | | | | | | | | | | ). | | +----------------------+-----------------------+-----------------------+ |NO_CAP_AMBIENT_RAISE | | | | | | | | | | | | | (ambient | | | | capabilities) | | | | | | | | prctl(PR_CAP_AMBIENT_RAISE)| | | | | | | | . | | | | | | | | NO_CAP_AMBIENT_RAISE_LOCKED| | | | | | | | | | | | | | | | NO_CAP_AMBIENT_RAISE | | | | ( | | | | | | | | | | | | | | | | | | | | | | | | ). | | +----------------------+-----------------------+-----------------------+ |EXEC_RESTRICT_FILE | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | execveat(2) | | | | | | | | AT_EXECVE_CHECK | | | | | | | | | | | | (file | | | | descriptor) | | | | | | | | | | | | . | | | | | | | | EXEC_RESTRICT_FILE_LOCKED| | | | | | | | | | | | | | | | EXEC_RESTRICT_FILE | | | | ( | | | | | | | | | | | | | | | | | | | | | | | | ). | | +----------------------+-----------------------+-----------------------+ |EXEC_DENY_INTERACTIVE | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (file | | | | descriptor) | | | | | | | | | | | | | | | | | | | | | | | | execveat(2) | | | | | | | | AT_EXECVE_CHECK | | | | | | | | . | | | | | | | | EXEC_DENY_INTERACTIVE_LOCKED| | | | | | | | | | | | | | | | EXEC_DENY_INTERACTIVE | | | | ( | | | | | | | | | | | | | | | | | | | | | | | | ). | | +----------------------+-----------------------+-----------------------+ (EXIT STATUS) syd-sec . syd-sec . prctl(2) PR_SET_SECUREBITS(2const) syd-sec errno(3) . (SEE ALSO) syd(1), syd(2), syd(5), syd-lock(1), syd-mdwe(1), syd-ofd(1), syd-pds(1), syd-ring(1), syd-tsc(1), PR_GET_SECUREBITS(2const), PR_SET_SECUREBITS(2const) syd: https://sydbox.exherbo.org (AUTHORS) Ali Polatel. https://gitlab.exherbo.org/sydbox/sydbox.git Radicle rad:z38HCnbmcDegA2BMxuPaPRPMdp6wF . / https://gitlab.exherbo.org/groups/sydbox/-/issues . #sydbox Libera Chat #sydbox:mailstation.de Matrix. 2026-09-01 SYD-SEC(1)