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[Xen-devel] [PATCH] x86: fix number of array elements calculation in XEN
| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] x86: fix number of array elements calculation in XEN_DOMCTL_getpageframeinfo3 handler |
| From: | "Jan Beulich" <JBeulich@xxxxxxxxxx> |
| Date: | Fri, 26 Feb 2010 10:33:24 +0000 |
| Delivery-date: | Fri, 26 Feb 2010 02:33:43 -0800 |
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Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
--- 2010-02-19.orig/xen/arch/x86/domctl.c 2010-01-21 20:06:17.000000000
+0100
+++ 2010-02-19/xen/arch/x86/domctl.c 2010-02-26 11:27:57.000000000 +0100
@@ -194,7 +194,8 @@ long arch_do_domctl(
for ( n = ret = 0; n < num; )
{
- unsigned int k = min_t(unsigned int, num - n, PAGE_SIZE / 4);
+ unsigned int k = min_t(unsigned int, num - n,
+ PAGE_SIZE / sizeof(*arr));
if ( copy_from_guest_offset(arr,
domctl->u.getpageframeinfo3.array,
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