The referenced addresses also need checking against MAXPHYSADDR.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
---
CC: Jan Beulich <jbeul...@suse.com>
CC: Wei Liu <wei.l...@citrix.com>
CC: Roger Pau Monné <roger....@citrix.com>
CC: Sergey Dyasli <sergey.dya...@citrix.com>
CC: Jun Nakajima <jun.nakaj...@intel.com>
CC: Kevin Tian <kevin.t...@intel.com>
---
xen/arch/x86/hvm/vmx/vvmx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c
index c296660..5daab82 100644
--- a/xen/arch/x86/hvm/vmx/vvmx.c
+++ b/xen/arch/x86/hvm/vmx/vvmx.c
@@ -1672,7 +1672,7 @@ static int nvmx_handle_vmptrld(struct cpu_user_regs *regs)
if ( rc != X86EMUL_OKAY )
return rc;
- if ( gpa & 0xfff )
+ if ( (gpa & ~PAGE_MASK) || !gfn_valid(v->domain, gaddr_to_gfn(gpa)) )
{
vmfail(regs, VMX_INSN_VMPTRLD_INVALID_PHYADDR);
goto out;
@@ -1780,7 +1780,7 @@ static int nvmx_handle_vmclear(struct cpu_user_regs *regs)
goto out;
}
- if ( gpa & 0xfff )
+ if ( (gpa & ~PAGE_MASK) || !gfn_valid(v->domain, gaddr_to_gfn(gpa)) )
{
vmfail(regs, VMX_INSN_VMCLEAR_INVALID_PHYADDR);
goto out;
--
2.1.4
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