/usr/src/linux-headers-3.13.0-24/security/ is in linux-headers-3.13.0-24 3.13.0-24.47.
This file is owned by root:root, with mode 0o755.
..
/usr/src/linux-headers-3.13.0-24/security/Kconfig
/usr/src/linux-headers-3.13.0-24/security/Makefile
/usr/src/linux-headers-3.13.0-24/security/apparmor/
/usr/src/linux-headers-3.13.0-24/security/apparmor/Kconfig
/usr/src/linux-headers-3.13.0-24/security/apparmor/Makefile
/usr/src/linux-headers-3.13.0-24/security/integrity/
/usr/src/linux-headers-3.13.0-24/security/integrity/Kconfig
/usr/src/linux-headers-3.13.0-24/security/integrity/Makefile
/usr/src/linux-headers-3.13.0-24/security/integrity/evm/
/usr/src/linux-headers-3.13.0-24/security/integrity/evm/Kconfig
/usr/src/linux-headers-3.13.0-24/security/integrity/evm/Makefile
/usr/src/linux-headers-3.13.0-24/security/integrity/ima/
/usr/src/linux-headers-3.13.0-24/security/integrity/ima/Kconfig
/usr/src/linux-headers-3.13.0-24/security/integrity/ima/Makefile
/usr/src/linux-headers-3.13.0-24/security/keys/
/usr/src/linux-headers-3.13.0-24/security/keys/Kconfig
/usr/src/linux-headers-3.13.0-24/security/keys/Makefile
/usr/src/linux-headers-3.13.0-24/security/keys/encrypted-keys/
/usr/src/linux-headers-3.13.0-24/security/keys/encrypted-keys/Makefile
/usr/src/linux-headers-3.13.0-24/security/selinux/
/usr/src/linux-headers-3.13.0-24/security/selinux/Kconfig
/usr/src/linux-headers-3.13.0-24/security/selinux/Makefile
/usr/src/linux-headers-3.13.0-24/security/smack/
/usr/src/linux-headers-3.13.0-24/security/smack/Kconfig
/usr/src/linux-headers-3.13.0-24/security/smack/Makefile
/usr/src/linux-headers-3.13.0-24/security/tomoyo/
/usr/src/linux-headers-3.13.0-24/security/tomoyo/Kconfig
/usr/src/linux-headers-3.13.0-24/security/tomoyo/Makefile
/usr/src/linux-headers-3.13.0-24/security/yama/
/usr/src/linux-headers-3.13.0-24/security/yama/Kconfig
/usr/src/linux-headers-3.13.0-24/security/yama/Makefile