diff options
| author | Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> | 2017-10-31 12:29:17 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-11-13 23:01:25 +0300 |
| commit | d6d5c59905c8af932c1cee874e1fb5cd9e83fa61 (patch) | |
| tree | 21186a9ffbb8465892fe89c4e691911b9a6c2a24 /drivers/infiniband/hw | |
| parent | f17966f19575eac9d5dea68b08f6292dd3d4d3db (diff) | |
| download | linux-d6d5c59905c8af932c1cee874e1fb5cd9e83fa61.tar.xz | |
bnxt_re: fix a crash in qp error event processing
In bnxt_qplib_process_qp_event(), for qp error events we look up the
qp-handle and pass it for further processing. But we don't check if the
handle is NULL. This could lead to a crash in the called functions when
that qp-handle is dereferenced, if the qp is destroyed in the meantime.
Fix this by checking for a valid qp-handle in that function.
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c index 6d116146fa3c..a7b5de3e193c 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c @@ -302,6 +302,8 @@ static int bnxt_qplib_process_qp_event(struct bnxt_qplib_rcfw *rcfw, "QPLIB: qpid 0x%x, req_err=0x%x, resp_err=0x%x\n", qp_id, err_event->req_err_state_reason, err_event->res_err_state_reason); + if (!qp) + break; bnxt_qplib_acquire_cq_locks(qp, &flags); bnxt_qplib_mark_qp_error(qp); bnxt_qplib_release_cq_locks(qp, &flags); |