diff --git a/sys/kern/uipc_syscalls.c b/sys/kern/uipc_syscalls.c
index fa6cb6ab9e4..a06b39fd7b8 100644
--- a/sys/kern/uipc_syscalls.c
+++ b/sys/kern/uipc_syscalls.c
@@ -1705,6 +1705,7 @@ retry_lookup:
 		MGETHDR(m, M_WAIT, MT_DATA);
 		if (m == NULL) {
 			error = ENOBUFS;
+			sf_buf_free((void *)sf->kva, PAGE_SIZE);
 			goto done;
 		}
 		/*