Messages in this thread Patch in this message | | | From | Konstantin Taranov <> | Subject | [PATCH rdma-next 5/6] RDMA/mana_ib: boundary check before installing cq callbacks | Date | Thu, 18 Apr 2024 09:52:04 -0700 |
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From: Konstantin Taranov <kotaranov@microsoft.com>
Add a boundary check inside mana_ib_install_cq_cb to prevent index overflow.
Fixes: 2a31c5a7e0d8 ("RDMA/mana_ib: Introduce mana_ib_install_cq_cb helper function") Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> --- drivers/infiniband/hw/mana/cq.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/infiniband/hw/mana/cq.c b/drivers/infiniband/hw/mana/cq.c index 6c3bb8c..8323085 100644 --- a/drivers/infiniband/hw/mana/cq.c +++ b/drivers/infiniband/hw/mana/cq.c @@ -70,6 +70,8 @@ int mana_ib_install_cq_cb(struct mana_ib_dev *mdev, struct mana_ib_cq *cq) struct gdma_context *gc = mdev_to_gc(mdev); struct gdma_queue *gdma_cq; + if (cq->queue.id >= gc->max_num_cqs) + return -EINVAL; /* Create CQ table entry */ WARN_ON(gc->cq_table[cq->queue.id]); gdma_cq = kzalloc(sizeof(*gdma_cq), GFP_KERNEL); -- 2.43.0
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