diff --git a/io_uring/net.c b/io_uring/net.c
index 050ed274170a..f5f4f3ce6ef3 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -7,6 +7,7 @@
 #include <linux/un.h>
 #include <linux/compat.h>
 #include <net/compat.h>
+#include <net/ipv6.h>
 #include <linux/io_uring.h>
 
 #include <uapi/linux/io_uring.h>
@@ -1741,7 +1742,8 @@ void io_connect_bpf_populate(struct io_uring_bpf_ctx *bctx, struct io_kiocb *req
 	case AF_INET6: {
 		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)ss;
 
-		if (conn->addr_len < (int)sizeof(*sin6))
+		/* The IPv6 stack accepts SIN6_LEN_RFC2133; port and addr are in it. */
+		if (conn->addr_len < SIN6_LEN_RFC2133)
 			break;
 		bctx->connect.port = sin6->sin6_port;
 		memcpy(bctx->connect.v6_addr, &sin6->sin6_addr,