[PATCH v2 1/6] nfc: llcp: nullify llcp_sock->dev on connect() error paths
Krzysztof Kozlowski <[email protected]>
| Newsgroups | dev.linux.lists.oe-linux-nfc,org.01.lists.linux-nfc,org.kernel.vger.linux-kernel,org.kernel.vger.netdev |
|---|---|
| Message-ID | <[email protected]> |
Nullify the llcp_sock->dev on llcp_sock_connect() error paths,
symmetrically to the code llcp_sock_bind(). The non-NULL value of
llcp_sock->dev is used in a few places to check whether the socket is
still valid.
There was no particular issue observed with missing NULL assignment in
connect() error path, however a similar case - in the bind() error path
- was triggereable. That one was fixed in commit 4ac06a1e013c ("nfc:
fix NULL ptr dereference in llcp_sock_getname() after failed connect"),
so the change here seems logical as well.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
---
net/nfc/llcp_sock.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 6cfd30fc0798..d951d4f0c87f 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -764,6 +764,7 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
llcp_sock->local = NULL;
put_dev:
+ llcp_sock->dev = NULL;
nfc_put_device(dev);
error:
--
2.32.0