diff --git a/crypto/algapi.c b/crypto/algapi.c
index abf100c..3c079b7 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -980,7 +980,8 @@
 
 unsigned int crypto_alg_extsize(struct crypto_alg *alg)
 {
-	return alg->cra_ctxsize;
+	return alg->cra_ctxsize +
+	       (alg->cra_alignmask & ~(crypto_tfm_ctx_alignment() - 1));
 }
 EXPORT_SYMBOL_GPL(crypto_alg_extsize);