In rds_rdma_cm_event_handler_cmn(), there are some if statements to
check whether conn is NULL, such as on lines 65, 96 and 112.
But conn is not checked before being used on line 108:
trans->cm_connect_complete(conn, event);
and on lines 140-143:
rdsdebug("DISCONNECT event - dropping connection "
"%pI6c->%pI6c\n", &conn->c_laddr,
&conn->c_faddr);
rds_conn_drop(conn);
Thus, possible null-pointer dereferences may occur.
To fix these bugs, conn is checked before being used.
These bugs are found by a static analysis tool STCheck written by us.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
c7ba50fe23