vdpa/mlx5: Fix is_index_valid() to refer to features

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Make sure the decision whether an index received through a callback is
valid or not consults the negotiated features.

The motivation for this was due to a case encountered where I shut down
the VM. After the reset operation was called features were already
clear, I got get_vq_state() call which caused out array bounds
access since is_index_valid() reported the index value.

So this is more of not hit a bug since the call shouldn't have been made
first place.

Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20220111183400.38418-4-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Si-Wei Liu<si-wei.liu@oracle.com>
Acked-by: Jason Wang <jasowang@redhat.com>

...

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Eli Cohen 2022-01-11 20:33:59 +02:00 • committed by Michael S. Tsirkin

parent 680ab9d69a

commit f8ae3a489b

1 changed files with 7 additions and 3 deletions

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drivers/vdpa/mlx5/net/mlx5_vnet.c

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