CVSROOT: /cvs
Module name: src
Changes by: k...@cvs.openbsd.org 2022/01/19 03:43:48
Modified files:
sys/uvm : uvm_mmap.c
Log message:
Grab the kernel lock in uvm_wxcheck() when aborting the process
kern.wxabort=1 logs and kills programs after W^X violations.
At least sigexit() -> coredump() as well as the non-atomic increment of
ps_wxcounter require protection, so grab the big lock for the entire block.
This is part of the effort to unlock mmap(2)'s MAP_ANON case.
Feedback mvs claudio kettenis deraadt
OK kettenis
