diff --git a/[refs] b/[refs]
index 0f01c460fd22..e647207116f0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8f2ea1fd3f97ab7a809e939b5b9005a16f862439
+refs/heads/master: d1f5a77f2c9db5b8a565eabdf8b534b02e32cc44
diff --git a/trunk/arch/powerpc/mm/slice.c b/trunk/arch/powerpc/mm/slice.c
index f833dba2a028..d5fd3909d13a 100644
--- a/trunk/arch/powerpc/mm/slice.c
+++ b/trunk/arch/powerpc/mm/slice.c
@@ -405,6 +405,8 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
 
 	if (len > mm->task_size)
 		return -ENOMEM;
+	if (len & ((1ul << pshift) - 1))
+		return -EINVAL;
 	if (fixed && (addr & ((1ul << pshift) - 1)))
 		return -EINVAL;
 	if (fixed && addr > (mm->task_size - len))