Commit f79edef7 authored by Konstantin Taranov's avatar Konstantin Taranov Committed by Leon Romanovsky
Browse files

RDMA/mana_ib: boundary check before installing cq callbacks 



Add a boundary check inside mana_ib_install_cq_cb to prevent index overflow.

Fixes: 2a31c5a7 ("RDMA/mana_ib: Introduce mana_ib_install_cq_cb helper function")
Signed-off-by: default avatarKonstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1714137160-5222-5-git-send-email-kotaranov@linux.microsoft.com


Reviewed-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 3e411052

drivers/infiniband/hw/mana/cq.c

+2 −0
Original line number Diff line number Diff line
@@ -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);