NFC: Prevent NULL deref when getting socket name

[platform/adaptation/renesas_rcar/renesas_kernel.git] / net / nfc / llcp / sock.c

diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 3f339b1..e06d458 100644 (file)
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -292,6 +292,9 @@ static int llcp_sock_getname(struct socket *sock, struct sockaddr *addr,
 
        pr_debug("%p\n", sk);
 
+       if (llcp_sock == NULL || llcp_sock->dev == NULL)
+               return -EBADFD;
+
        addr->sa_family = AF_NFC;
        *len = sizeof(struct sockaddr_nfc_llcp);