| Apache/2.4.7 (Ubuntu) Linux sman1baleendah 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 uid=33(www-data) gid=33(www-data) groups=33(www-data) safemode : OFF MySQL: ON | Perl: ON | cURL: OFF | WGet: ON > / etc / sysctl.d / | server ip : 104.21.89.46 your ip : 172.69.214.217 H O M E |
| Filename | /etc/sysctl.d/10-zeropage.conf |
| Size | 506 |
| Permission | rw-r--r-- |
| Owner | root : root |
| Create time | 27-Apr-2025 09:50 |
| Last modified | 07-Jan-2014 07:32 |
| Last accessed | 05-Jul-2025 11:25 |
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# 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
# 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