diff options
| author | Konstantin Taranov <kotaranov@microsoft.com> | 2025-03-18 08:45:44 -0700 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2025-03-19 04:38:58 -0400 |
| commit | 0c55174524227a174c1a367889cd704212d15b45 (patch) | |
| tree | 125fb0fa1a13ac37cfcaa0fe7f495c41c572d370 | |
| parent | 79195147644653ebffadece31a42181e4c48c07d (diff) | |
RDMA/mana_ib: Fix integer overflow during queue creation
Check queue size during CQ creation for users to prevent
overflow of u32.
Fixes: bec127e45d9f ("RDMA/mana_ib: create kernel-level CQs")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1742312744-14370-1-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/mana/cq.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mana/cq.c b/drivers/infiniband/hw/mana/cq.c index 5c325ef4ac56..0fc4e2679218 100644 --- a/drivers/infiniband/hw/mana/cq.c +++ b/drivers/infiniband/hw/mana/cq.c @@ -39,7 +39,8 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, is_rnic_cq = !!(ucmd.flags & MANA_IB_CREATE_RNIC_CQ); - if (!is_rnic_cq && attr->cqe > mdev->adapter_caps.max_qp_wr) { + if ((!is_rnic_cq && attr->cqe > mdev->adapter_caps.max_qp_wr) || + attr->cqe > U32_MAX / COMP_ENTRY_SIZE) { ibdev_dbg(ibdev, "CQE %d exceeding limit\n", attr->cqe); return -EINVAL; } |