diff options
| author | Moni Shoua <monis@mellanox.com> | 2017-12-24 14:54:58 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2017-12-28 01:24:41 +0300 |
| commit | 4a50881bbac309e6f0684816a180bc3c14e1485d (patch) | |
| tree | eb5e418661ec128520876d450984f164ede32706 | |
| parent | 05d14e7b0c138cb07ba30e464f47b39434f3fdef (diff) | |
| download | linux-4a50881bbac309e6f0684816a180bc3c14e1485d.tar.xz | |
IB/core: Verify that QP is security enabled in create and destroy
The XRC target QP create flow sets up qp_sec only if there is an IB link with
LSM security enabled. However, several other related uAPI entry points blindly
follow the qp_sec NULL pointer, resulting in a possible oops.
Check for NULL before using qp_sec.
Cc: <stable@vger.kernel.org> # v4.12
Fixes: d291f1a65232 ("IB/core: Enforce PKey security on QPs")
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/core/security.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 3 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c index feafdb961c48..59b2f96d986a 100644 --- a/drivers/infiniband/core/security.c +++ b/drivers/infiniband/core/security.c @@ -386,6 +386,9 @@ int ib_open_shared_qp_security(struct ib_qp *qp, struct ib_device *dev) if (ret) return ret; + if (!qp->qp_sec) + return 0; + mutex_lock(&real_qp->qp_sec->mutex); ret = check_qp_port_pkey_settings(real_qp->qp_sec->ports_pkeys, qp->qp_sec); diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 3fb8fb6cc824..e36d27ed4daa 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1438,7 +1438,8 @@ int ib_close_qp(struct ib_qp *qp) spin_unlock_irqrestore(&real_qp->device->event_handler_lock, flags); atomic_dec(&real_qp->usecnt); - ib_close_shared_qp_security(qp->qp_sec); + if (qp->qp_sec) + ib_close_shared_qp_security(qp->qp_sec); kfree(qp); return 0; |