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| author |   Roland Dreier <roland@purestorage.com> | 2015-05-29 23:11:27 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-06-02 09:22:31 -0400 |
| commit | 1156256811e42908fd13c4cfcf32965d8b93f2a8 (patch) | |
| tree | 7ee9400f906c878f8a0eb739dd60a2f9b23c82b5 /drivers/infiniband/hw | |
| parent | RDMA/ocrdma: Fix memory leak in _ocrdma_alloc_pd() (diff) | |
| download | linux-dev-1156256811e42908fd13c4cfcf32965d8b93f2a8.tar.xz linux-dev-1156256811e42908fd13c4cfcf32965d8b93f2a8.zip | |
IB/mlx4: Fix error paths in mlx4_ib_create_flow()
The unwinding clean up code are err_create_flow starts at the current
index i. That means we shouldn't increment i until we're really sure
we won't have to destroy the current flow; otherwise we might
increment the index, fail inside an is_bonded block, and end up
accessing off the end of the reg_id[] array.
This was detected by Coverity (CID 1271229).
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index cc64400d41ac..8191e176c5b7 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1185,7 +1185,6 @@ static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, &mflow->reg_id[i].id); if (err) goto err_create_flow; - i++; if (is_bonded) { /* Application always sees one port so the mirror rule * must be on port #2 @@ -1200,6 +1199,7 @@ static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, j++; } + i++; } if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) { @@ -1207,7 +1207,7 @@ static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, &mflow->reg_id[i].id); if (err) goto err_create_flow; - i++; + if (is_bonded) { flow_attr->port = 2; err = mlx4_ib_tunnel_steer_add(qp, flow_attr, @@ -1218,6 +1218,7 @@ static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp, j++; } /* function to create mirror rule */ + i++; } return &mflow->ibflow; |