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RDMA/ionic: Fix potential NULL pointer dereference in ionic_query_port

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The function ionic_query_port() calls ib_device_get_netdev() without
checking the return value which could lead to NULL pointer dereference,
Fix it by checking the return value and return -ENODEV if the 'ndev' is
NULL.

Fixes: 2075bbe8ef ("RDMA/ionic: Register device ops for miscellaneous functionality")
Signed-off-by: Kamal Heib <kheib@redhat.com>
Link: https://patch.msgid.link/20260220222125.16973-2-kheib@redhat.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Kamal Heib 2026-02-20 17:21:26 -05:00 • committed by Leon Romanovsky
parent 3d2e5d12a2
commit fd80bd7105
1 changed files with 2 additions and 0 deletions
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2
drivers/infiniband/hw/ionic/ionic_ibdev.c
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@ -81,6 +81,8 @@ static int ionic_query_port(struct ib_device *ibdev, u32 port,
return -EINVAL;
ndev = ib_device_get_netdev(ibdev, port);
if (!ndev)
return -ENODEV;
if (netif_running(ndev) && netif_carrier_ok(ndev)) {
attr->state = IB_PORT_ACTIVE;