This patch adds an overdue BUILD_BUG_ON size check that the
"struct sockaddr_ieee802154" is never greater than the
"struct sockaddr". The IEEE 802.15.4 will cast the "struct sockaddr" to
struct sockaddr_ieee802154" at several places.
Signed-off-by: Alexander Aring <alex.aring@xxxxxxxxx>
---
net/ieee802154/socket.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index 2878d8c..9c09291 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -1085,6 +1085,9 @@ static int __init af_ieee802154_init(void)
{
int rc = -EINVAL;
+ BUILD_BUG_ON(sizeof(struct sockaddr_ieee802154) >
+ sizeof(struct sockaddr));
+
rc = proto_register(&ieee802154_raw_prot, 1);
if (rc)
goto out;
--
2.2.1
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