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RDMA/nldev: Add checks for nla_nest_start() in fill_stat_counter_qps()

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[ Upstream commit ea5ef136e215fdef35f14010bc51fcd6686e6922 ]

As the nla_nest_start() may fail with NULL returned, the return value needs
to be checked.

Fixes: c4ffee7c9b ("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>
This commit is contained in:
Yuan Can 2022-11-26 04:34:10 +00:00 • committed by Greg Kroah-Hartman
commit 91f63dd622
1 changed files with 2 additions and 0 deletions
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2
drivers/infiniband/core/nldev.c
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@ -694,6 +694,8 @@ 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);