From f69a0fcf366ffc5a39d6f32ad338df8bddc69332 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Tue, 26 Feb 2008 14:46:07 +0000 Subject: [PATCH] x86_emulate: Fix FNSTCW/FNSTSW modrm range check. Signed-off-by: Samuel Thibault --- xen/arch/x86/x86_emulate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/x86_emulate.c b/xen/arch/x86/x86_emulate.c index fb9f16df12..d75f49c504 100644 --- a/xen/arch/x86/x86_emulate.c +++ b/xen/arch/x86/x86_emulate.c @@ -2671,7 +2671,7 @@ x86_emulate( fail_if(ops->load_fpu_ctxt == NULL); ops->load_fpu_ctxt(ctxt); fail_if((modrm_reg & 7) != 7); - fail_if(modrm_reg >= 0xc0); + fail_if(modrm >= 0xc0); /* fnstcw m2byte */ ea.bytes = 2; dst = ea; @@ -2690,7 +2690,7 @@ x86_emulate( fail_if(ops->load_fpu_ctxt == NULL); ops->load_fpu_ctxt(ctxt); fail_if((modrm_reg & 7) != 7); - fail_if(modrm_reg >= 0xc0); + fail_if(modrm >= 0xc0); /* fnstsw m2byte */ ea.bytes = 2; dst = ea; -- 2.30.2