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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);