This is a note to let you know that I've just added the patch titled

RDMA/vmw_pvrdma: Call ib_umem_release on destroy QP path

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: rdma-vmw_pvrdma-call-ib_umem_release-on-destroy-qp-path.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Wed Feb 28 16:23:28 CET 2018

From: Bryan Tan bryantan@vmware.com Date: Wed, 20 Dec 2017 09:49:03 -0800 Subject: RDMA/vmw_pvrdma: Call ib_umem_release on destroy QP path

From: Bryan Tan bryantan@vmware.com

[ Upstream commit 17748056ce123ee37fb7382bc698fc721e3c4a09 ]

The QP cleanup did not previously call ib_umem_release, resulting in a user-triggerable kernel resource leak.

Fixes: 29c8d9eba550 ("IB: Add vmw_pvrdma driver") Reviewed-by: Adit Ranadive aditr@vmware.com Reviewed-by: Aditya Sarwade asarwade@vmware.com Reviewed-by: Jorgen Hansen jhansen@vmware.com Signed-off-by: Bryan Tan bryantan@vmware.com Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 7 +++++++ 1 file changed, 7 insertions(+)

--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c @@ -406,6 +406,13 @@ static void pvrdma_free_qp(struct pvrdma atomic_dec(&qp->refcnt); wait_event(qp->wait, !atomic_read(&qp->refcnt));

+ if (!qp->is_kernel) { + if (qp->rumem) + ib_umem_release(qp->rumem); + if (qp->sumem) + ib_umem_release(qp->sumem); + } + pvrdma_page_dir_cleanup(dev, &qp->pdir);

kfree(qp);

Patches currently in stable-queue which might be from bryantan@vmware.com are

queue-4.14/rdma-vmw_pvrdma-call-ib_umem_release-on-destroy-qp-path.patch