When a built-in object is invoked with UBUS_ATTR_DATA absent, recv_msg
will be called with NULL as the msg argument and ubusd_forward_event
and ubusd_alloc_event_pattern need to handle this. Otherwise, a
truncated invoke of "send" or "register" on UBUS_SYSTEM_OBJECT_EVENT
that is missing UBUS_ATTR_DATA will cause ubusd to crash with SIGSEGV.
Signed-off-by: Erik Karlsson <erik.karlsson@genexis.eu>
bool partial = false;
int len;
+ if (!msg)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
blobmsg_parse(evr_policy, EVREG_LAST, attr, blob_data(msg), blob_len(msg));
if (!attr[EVREG_OBJECT] || !attr[EVREG_PATTERN])
return UBUS_STATUS_INVALID_ARGUMENT;
struct blob_attr *attr[EVMSG_LAST];
const char *id;
+ if (!msg)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
blobmsg_parse(ev_policy, EVMSG_LAST, attr, blob_data(msg), blob_len(msg));
if (!attr[EVMSG_ID] || !attr[EVMSG_DATA])
return UBUS_STATUS_INVALID_ARGUMENT;