D7net
Home
Console
Upload
information
Create File
Create Folder
About
Tools
:
/
snap
/
core20
/
current
/
etc
/
sysctl.d
/
Filename :
10-zeropage.conf
back
Copy
# 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