Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git…

…/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "This fixes an allocation error-path bug in af_alg discovered by
  syzkaller"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: af_alg - Initialize sg_num_bytes in error code path

crypto/af_alg.c

@@ -1155,8 +1155,10 @@ int af_alg_get_rsgl(struct sock *sk, struct msghdr *msg, int flags,
 
 		/* make one iovec available as scatterlist */
 		err = af_alg_make_sg(&rsgl->sgl, &msg->msg_iter, seglen);
-		if (err < 0)
+		if (err < 0) {
+			rsgl->sg_num_bytes = 0;
 			return err;
+		}
 
 		/* chain the new scatterlist with previous one */
 		if (areq->last_rsgl)