diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c
index f721d03efcbd..521f5df80e10 100644
--- a/net/smc/smc_clc.c
+++ b/net/smc/smc_clc.c
@@ -774,6 +774,11 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
 						SMC_CLC_RECV_BUF_LEN : datlen;
 		iov_iter_kvec(&msg.msg_iter, ITER_DEST, &vec, 1, recvlen);
 		len = sock_recvmsg(smc->clcsock, &msg, krflags);
+		if (len < recvlen) {
+			smc->sk.sk_err = EPROTO;
+			reason_code = -EPROTO;
+			goto out;
+		}
 		datlen -= len;
 	}
 	if (clcm->type == SMC_CLC_DECLINE) {