Current Dir: /snap/core22/2437/etc/sysctl.d/ [FILE] 10-console-messages.conf [ edit | delete | rename ] [FILE] 10-ipv6-privacy.conf [ edit | delete | rename ] [FILE] 10-kernel-hardening.conf [ edit | delete | rename ] [FILE] 10-magic-sysrq.conf [ edit | delete | rename ] [FILE] 10-network-security.conf [ edit | delete | rename ] [FILE] 10-ptrace.conf [ edit | delete | rename ] [FILE] 10-zeropage.conf [ edit | delete | rename ] [FILE] README.sysctl [ edit | delete | rename ] Viewing: /snap/core22/2437/etc/sysctl.d/10-zeropage.conf # Protect the zero page of memory from userspace mmap to prevent kernel # NULL-dereference attacks against potential future kernel security # vulnerabilities. (Added in kernel 2.6.23.) # # While this default is built into the Ubuntu kernel, there is no way to # restore the kernel default if the value is changed during runtime; for # example via package removal (e.g. wine, dosemu). Therefore, this value # is reset to the secure default each time the sysctl values are loaded. vm.mmap_min_addr = 65536