CVSROOT: /cvs
Module name: src
Changes by: ste...@cvs.openbsd.org 2016/07/14 11:28:38
Modified files:
sys/arch/amd64/amd64: Tag: OPENBSD_5_9 vmm.c
Log message:
Add the vmm bits of previous commit to 5.9 -stable branch:
Make sure that amap slot calculation does not overflow
This prevents too small amaps from being allocated by
forcing the allocation of a large number of slots.
Based on an analysis from Jesse Hertz and Tim Newsham.
This is a different patch for 5.9 that addresses the same
issue as r1.75 of uvm/uvm_amap.c. It also makes sure that
vmm(4) cannot make such large amap allocation requests.
