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[Xen-changelog] [xen-unstable] [HVM] MAke HVM hypercall table NR_hyperca
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| Subject: | [Xen-changelog] [xen-unstable] [HVM] MAke HVM hypercall table NR_hypercalls entries big. |
| From: | Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 07 Nov 2006 12:30:19 +0000 |
| Delivery-date: | Tue, 07 Nov 2006 04:30:44 -0800 |
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# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Node ID 9d981f3480b149529e494c4673ef01a597d13fe9
# Parent 182678e5095b86b759752db5e322e65deaff8dbc
[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@xxxxxxxxxxxxx>
---
xen/arch/x86/hvm/hvm.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -r 182678e5095b -r 9d981f3480b1 xen/arch/x86/hvm/hvm.c
--- a/xen/arch/x86/hvm/hvm.c Tue Nov 07 09:32:02 2006 +0000
+++ b/xen/arch/x86/hvm/hvm.c Tue Nov 07 09:35:57 2006 +0000
@@ -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),
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