add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/net/core/bpf_sk_storage.c
..
..
@@ -446,8 +446,11 @@
446
446
 		return ERR_PTR(-EPERM);
447
447
 
448
448
 	nla_for_each_nested(nla, nla_stgs, rem) {
449
-		if (nla_type(nla) == SK_DIAG_BPF_STORAGE_REQ_MAP_FD)
449
+		if (nla_type(nla) == SK_DIAG_BPF_STORAGE_REQ_MAP_FD) {
450
+			if (nla_len(nla) != sizeof(u32))
451
+				return ERR_PTR(-EINVAL);
450
452
 			nr_maps++;
453
+		}
451
454
 	}
452
455
 
453
456
 	diag = kzalloc(sizeof(*diag) + sizeof(diag->maps[0]) * nr_maps,