CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2020/03/04 14:15:39
Modified files:
sys/uvm : uvm_map.c uvm_mmap.c
Log message:
Do not count pages mapped as PROT_NONE against the RLIMIT_DATA limit.
Instead count (and check the limit) when their protection gets flipped
from PROT_NONE to something that permits access. This means that
mprotect(2) may now fail if changing the protection would exceed RLIMIT_DATA.
This helps code (such as Chromium's JavaScript interpreter that reserves
large chunks of address space but populates it sparsely.
ok deraadt@, otto@, kurt@, millert@, robert@
