Linux lhjmq-records 5.15.0-118-generic #128-Ubuntu SMP Fri Jul 5 09:28:59 UTC 2024 x86_64
Your IP : 3.135.206.19
| Current Path : /etc/sysctl.d/ | |
| | Current File : //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
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