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RDMA/mana_ib: boundary check before installing cq callbacks

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BugLink: https://bugs.launchpad.net/bugs/2071621

[ Upstream commit f79edef79b6a2161f4124112f9b0c46891bb0b74 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Konstantin Taranov
2024-04-26 06:12:39 -07:00
committed by Stefan Bader
parent 254b328591
commit 8b62b76c02
1 changed files with 2 additions and 0 deletions
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drivers/infiniband/hw/mana/cq.c
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@@ -81,6 +81,8 @@ 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);