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RDMA/mana_ib: boundary check before installing cq callbacks
author
Konstantin Taranov
<kotaranov@microsoft.com>
Fri, 26 Apr 2024 13:12:39 +0000
(06:12 -0700)
committer
Leon Romanovsky
<leon@kernel.org>
Sun, 5 May 2024 12:27:23 +0000
(15:27 +0300)
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>
Link:
https://lore.kernel.org/r/1714137160-5222-5-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
drivers/infiniband/hw/mana/cq.c
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diff --git
a/drivers/infiniband/hw/mana/cq.c
b/drivers/infiniband/hw/mana/cq.c
index 298e8f15a6591aa1d948bf1fac729b631937389d..688ffe61f6b229343e894294cf05ff1189b82af6 100644
(file)
--- 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);