diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 437f3e77c7e0..dd0e5be4d8c0 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -705,8 +705,8 @@ void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst)
 			 * Assumption: caller created af_alg_count_tsgl(len)
 			 * SG entries in dst.
 			 */
-			if (dst) {
-				/* reassign page to dst after offset */
+			if (dst && plen) {
+				/* reassign page to dst */
 				get_page(page);
 				sg_set_page(dst + j, page, plen, sg[i].offset);
 				j++;