Bluetooth: bnep: bnep_add_connection() should verify that it's dealin…

…g with l2cap socket same story as cmtp Bug: 33982955 Change-Id: I60ce3e3b5a5a0e41ddaec155a0c6a46307eedeb7 Signed-off-by: Al Viro <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> Signed-off-by: Francisco Franco <[email protected]>
franciscofranco · May 11, 2018 · b6a1402 · b6a1402
1 parent 73f7063
commit b6a1402
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
@@ -50,6 +50,7 @@
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 
@@ -565,6 +566,9 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
 
 	BT_DBG("");
 
+	if (!l2cap_is_socket(sock))
+		return -EBADFD;
+
 	baswap((void *) dst, &bt_sk(sock->sk)->dst);
 	baswap((void *) src, &bt_sk(sock->sk)->src);