31 lines
1002 B
Diff
31 lines
1002 B
Diff
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# HG changeset patch
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# User Jan Beulich <jbeulich@suse.com>
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# Date 1350465790 -7200
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# Node ID 4b4c0c7a6031820ab521fdd6764cb0df157f44bf
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# Parent 4fc87c2f31a02c770655518c9e4d389302564f00
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x86/oprof: adjust off-by-one counter range checks
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Signed-off-by: Jan Beulich <jbeulich@suse.com>
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Acked-by: Keir Fraser <keir@xen.org>
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--- a/xen/arch/x86/oprofile/xenoprof.c
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+++ b/xen/arch/x86/oprofile/xenoprof.c
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@@ -26,7 +26,7 @@ int xenoprof_arch_counter(XEN_GUEST_HAND
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if ( copy_from_guest(&counter, arg, 1) )
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return -EFAULT;
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- if ( counter.ind > OP_MAX_COUNTER )
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+ if ( counter.ind >= OP_MAX_COUNTER )
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return -E2BIG;
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counter_config[counter.ind].count = counter.count;
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@@ -64,7 +64,7 @@ int compat_oprof_arch_counter(XEN_GUEST_
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if ( copy_from_guest(&counter, arg, 1) )
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return -EFAULT;
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- if ( counter.ind > OP_MAX_COUNTER )
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+ if ( counter.ind >= OP_MAX_COUNTER )
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return -E2BIG;
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counter_config[counter.ind].count = counter.count;
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