sd-dhcp-client: fix invalid free() in client_send_request()

static int client_send_request(...) in
./src/libsystemd-network/sd-dhcp-client.c tries to initialize
"request" by calling client_message_init(...), which has atleast
5 error cases where it can return without that happening.
This leads to the function finishing without "request" being initialized.

diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c
index 8f549060bf9750c8902544bddd8aa630663978ea..2a46624f2e8c328e41c520e3377c96dd15f1c92d 100644 (file)
--- a/src/libsystemd-network/sd-dhcp-client.c
+++ b/src/libsystemd-network/sd-dhcp-client.c
@@ -413,7 +413,7 @@ static int client_send_discover(sd_dhcp_client *client) {
 }
 
 static int client_send_request(sd_dhcp_client *client) {
-        _cleanup_free_ DHCPPacket *request;
+        _cleanup_free_ DHCPPacket *request = NULL;
         size_t optoffset, optlen;
         int r;