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RDMA/nldev: Don't expose number of not-visible entries 

Netlink dumpit handshake exchanges the index from which kernel should
start to return its value, in current code, this index included
not-visible in this PID items too and indirectly revealed the number of
entries.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Leon Romanovsky 2019-02-18 22:25:52 +02:00 committed by Jason Gunthorpe
parent 1b8b778864
commit f2a0e45f36
1 changed files with 2 additions and 5 deletions
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7
drivers/infiniband/core/nldev.c
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@ -1123,13 +1123,10 @@ static int res_get_common_dumpit(struct sk_buff *skb,
* objects.
*/
xa_for_each(&rt->xa, id, res) {
if (idx < start)
goto next;
if (!is_visible_in_pid_ns(res))
goto next;
continue;
if (!rdma_restrack_get(res))
if (idx < start || !rdma_restrack_get(res))
goto next;
xa_unlock(&rt->xa);