crypto: skcipher - Fix blkcipher walk OOM crash

[pandora-kernel.git] / crypto / blkcipher.c

diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 7b69d7a..a5284e0 100644 (file)
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -238,6 +238,8 @@ static int blkcipher_walk_next(struct blkcipher_desc *desc,
                return blkcipher_walk_done(desc, walk, -EINVAL);
        }
 
+       bsize = min(walk->blocksize, n);
+
        walk->flags &= ~(BLKCIPHER_WALK_SLOW | BLKCIPHER_WALK_COPY |
                         BLKCIPHER_WALK_DIFF);
        if (!scatterwalk_aligned(&walk->in, alignmask) ||
@@ -250,7 +252,6 @@ static int blkcipher_walk_next(struct blkcipher_desc *desc,
                }
        }
 
-       bsize = min(walk->blocksize, n);
        n = scatterwalk_clamp(&walk->in, n);
        n = scatterwalk_clamp(&walk->out, n);