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authorSagi Grimberg <sagi@grimberg.me>2017-11-26 16:31:04 +0300
committerDoug Ledford <dledford@redhat.com>2018-01-11 00:46:03 +0300
commitcd52cb26e7ead5093635e98e07e221e4df482d34 (patch)
treef62ae4a0d8842b51f6b305c6a5ac3dcf7034e21d /drivers/infiniband/ulp/isert/ib_isert.c
parenta1ffa4670cb97ae3a4b3e8535d88be5f643f7c3b (diff)
downloadlinux-cd52cb26e7ead5093635e98e07e221e4df482d34.tar.xz
iser-target: Fix possible use-after-free in connection establishment error
In case we fail to establish the connection we must drain our pre-posted login recieve work request before continuing safely with connection teardown. Fixes: a060b5629ab0 ("IB/core: generic RDMA READ/WRITE API") Cc: <stable@vger.kernel.org> # 4.7+ Reported-by: Amrani, Ram <Ram.Amrani@cavium.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/ulp/isert/ib_isert.c')
-rw-r--r--drivers/infiniband/ulp/isert/ib_isert.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 720dfb3a1ac2..1b02283ce20e 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -741,6 +741,7 @@ isert_connect_error(struct rdma_cm_id *cma_id)
{
struct isert_conn *isert_conn = cma_id->qp->qp_context;
+ ib_drain_qp(isert_conn->qp);
list_del_init(&isert_conn->node);
isert_conn->cm_id = NULL;
isert_put_conn(isert_conn);