* Maxime Villard [2020-02-22 12:16:35 +0100]:
CVSROOT:/cvs
Module name:src
Changes by: morti...@cvs.openbsd.org2020/02/15 15:59:55
Modified files:
sys/arch/amd64/amd64: vmm.c
Log message:
Add bounds check on addresses passed from guests in pvclock.
Fixes an is
CVSROOT:/cvs
Module name:src
Changes by: morti...@cvs.openbsd.org2020/02/15 15:59:55
Modified files:
sys/arch/amd64/amd64: vmm.c
Log message:
Add bounds check on addresses passed from guests in pvclock.
Fixes an issue where a guest can write to host memory by pas
In vmm_update_pvclock():
6868pvclock_gpa = vcpu->vc_pvclock_system_gpa & 0xFFF0; <--
controlled by the guest
6869if (!pmap_extract(vm->vm_map->pmap, pvclock_gpa, &pvclock_hpa))
6870return (EINVAL);
6871pvclock_ti = (void*) PMAP_DIRECT_MAP(pvclock_hpa);
6872
6
