From: Yuan Can yuancan@huawei.com
[ Upstream commit ea5ef136e215fdef35f14010bc51fcd6686e6922 ]
As the nla_nest_start() may fail with NULL returned, the return value needs to be checked.
Fixes: c4ffee7c9bdb ("RDMA/netlink: Implement counter dumpit calback") Signed-off-by: Yuan Can yuancan@huawei.com Link: https://lore.kernel.org/r/20221126043410.85632-1-yuancan@huawei.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/core/nldev.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 6f3799698634..cefe12964f3e 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -892,6 +892,8 @@ static int fill_stat_counter_qps(struct sk_buff *msg, int ret = 0;
table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_RES_QP); + if (!table_attr) + return -EMSGSIZE;
rt = &counter->device->res[RDMA_RESTRACK_QP]; xa_lock(&rt->xa);