From: kfraser@localhost.localdomain <kfraser@localhost.localdomain>
Date: Tue, 7 Nov 2006 09:35:57 +0000 (+0000)
Subject: [HVM] MAke HVM hypercall table NR_hypercalls entries big.
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=2de9dec23d0efd9aeb13f73094bc11efe6f40aeb;p=xen.git

[HVM] MAke HVM hypercall table NR_hypercalls entries big.
Otherwise a buggy/malicious HVM guest can cause us to read
off the end of the table.
Signed-off-by: George Dunlap <gdunlap@xensource.com>
---

diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index be4ef35ce6..51a0161f62 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -401,7 +401,7 @@ typedef unsigned long hvm_hypercall_t(
 
 #if defined(__i386__)
 
-static hvm_hypercall_t *hvm_hypercall_table[] = {
+static hvm_hypercall_t *hvm_hypercall_table[NR_hypercalls] = {
     HYPERCALL(memory_op),
     HYPERCALL(multicall),
     HYPERCALL(xen_version),