crypto: sm3 - fix undefined shift by >= width of value

[linux-2.6-microblaze.git] / crypto / sm3_generic.c

diff --git a/crypto/sm3_generic.c b/crypto/sm3_generic.c
index 9a5c60f..c0cf87a 100644 (file)
--- a/crypto/sm3_generic.c
+++ b/crypto/sm3_generic.c
@@ -100,7 +100,7 @@ static void sm3_compress(u32 *w, u32 *wt, u32 *m)
 
        for (i = 0; i <= 63; i++) {
 
-               ss1 = rol32((rol32(a, 12) + e + rol32(t(i), i)), 7);
+               ss1 = rol32((rol32(a, 12) + e + rol32(t(i), i & 31)), 7);
 
                ss2 = ss1 ^ rol32(a, 12);