diff options
| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2019-01-17 12:42:16 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:45:02 +0100 |
| commit | 2a469758223ee56a7c4b9d871f0919eca6b355b8 (patch) | |
| tree | 56c01c7f773f240d6b19d9001b43cc4493cba633 | |
| parent | b6666764b6a0a99308a126a8314523763d31978b (diff) | |
IB/hfi1: Add limit test for RC/UC send via loopback
commit 09ce351dff8e7636af0beb72cd4a86c3904a0500 upstream.
Fix potential memory corruption and panic in loopback for IB_WR_SEND
variants.
The code blindly assumes the posted length will fit in the fetched rwqe,
which is not a valid assumption.
Fix by adding a limit test, and triggering the appropriate send completion
and putting the QP in an error state. This mimics the handling for
non-loopback QPs.
Fixes: 15703461533a ("IB/{hfi1, qib, rdmavt}: Move ruc_loopback to rdmavt")
Cc: <stable@vger.kernel.org> #v4.20+
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
| -rw-r--r-- | drivers/infiniband/hw/hfi1/ruc.c | 7 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_ruc.c | 7 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hfi1/ruc.c b/drivers/infiniband/hw/hfi1/ruc.c index 9f768b48321f..d1514294bd68 100644 --- a/drivers/infiniband/hw/hfi1/ruc.c +++ b/drivers/infiniband/hw/hfi1/ruc.c @@ -471,6 +471,8 @@ send: goto op_err; if (!ret) goto rnr_nak; + if (wqe->length > qp->r_len) + goto inv_err; break; case IB_WR_RDMA_WRITE_WITH_IMM: @@ -638,7 +640,10 @@ op_err: goto err; inv_err: - send_status = IB_WC_REM_INV_REQ_ERR; + send_status = + sqp->ibqp.qp_type == IB_QPT_RC ? + IB_WC_REM_INV_REQ_ERR : + IB_WC_SUCCESS; wc.status = IB_WC_LOC_QP_OP_ERR; goto err; diff --git a/drivers/infiniband/hw/qib/qib_ruc.c b/drivers/infiniband/hw/qib/qib_ruc.c index de1bde5950f5..10afde6d02fa 100644 --- a/drivers/infiniband/hw/qib/qib_ruc.c +++ b/drivers/infiniband/hw/qib/qib_ruc.c @@ -449,6 +449,8 @@ again: goto op_err; if (!ret) goto rnr_nak; + if (wqe->length > qp->r_len) + goto inv_err; break; case IB_WR_RDMA_WRITE_WITH_IMM: @@ -612,7 +614,10 @@ op_err: goto err; inv_err: - send_status = IB_WC_REM_INV_REQ_ERR; + send_status = + sqp->ibqp.qp_type == IB_QPT_RC ? + IB_WC_REM_INV_REQ_ERR : + IB_WC_SUCCESS; wc.status = IB_WC_LOC_QP_OP_ERR; goto err; |