diff options
| author | Kamal Heib <kheib@redhat.com> | 2026-02-21 01:21:26 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-02-24 12:54:10 +0300 |
| commit | fd80bd7105f88189f47d465ca8cb7d115570de30 (patch) | |
| tree | 91802ff4c5ee919990bc541a63fa7a83c576a5e3 | |
| parent | 3d2e5d12a2eef0ca8a629a422aa593673235c77c (diff) | |
| download | linux-fd80bd7105f88189f47d465ca8cb7d115570de30.tar.xz | |
RDMA/ionic: Fix potential NULL pointer dereference in ionic_query_port
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: 2075bbe8ef03 ("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>
| -rw-r--r-- | drivers/infiniband/hw/ionic/ionic_ibdev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ionic/ionic_ibdev.c b/drivers/infiniband/hw/ionic/ionic_ibdev.c index 164046d00e5d..bd4c73e530d0 100644 --- a/drivers/infiniband/hw/ionic/ionic_ibdev.c +++ b/drivers/infiniband/hw/ionic/ionic_ibdev.c @@ -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; |