github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-07-15 16:12:58 +00:00
Code Issues Projects Releases Wiki Activity

hv: fix NULL pointer dereference in "hcall_set_vm_memory_regions()"

Browse Source 
'target_vm' returned from 'get_vm_from_vmid()' maybe NULL,
 passing to 'is_vm0()' without check.

Tracked-On: #861
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yonghua Huang 2018-10-11 23:31:19 +08:00 committed by wenlingz
parent e913f9e613
commit 0c7e59f01e
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hypervisor/common/hypercall.c
View File

@ -535,6 +535,10 @@ int32_t hcall_set_vm_memory_regions(struct vm *vm, uint64_t param)
}
target_vm = get_vm_from_vmid(set_regions.vmid);
if (target_vm == NULL) {
return -EINVAL;
}
if (is_vm0(target_vm)) {
pr_err("%s: Targeting to service vm", __func__);
return -EFAULT;