[patch 33/42] sparc64: Fix overshoot in nid_range().

[Greg KH]

2.6.26-stable review patch.  If anyone has any objections, please let us know.

------------------

From: David S. Miller <davem@xxxxxxxxxxxxx>

[ Upstream commit c918dcce92f76bb9903e4d049f4780bad384c207 ]

If 'start' does not begin on a page boundary, we can overshoot
past 'end'.

Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 arch/sparc64/mm/init.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -842,6 +842,9 @@ static unsigned long nid_range(unsigned 
 		start += PAGE_SIZE;
 	}
 
+	if (start > end)
+		start = end;
+
 	return start;
 }
 #else

-- 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/