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;a=summary
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@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Wed Feb 28 16:23:28 CET 2018
From: Bryan Tan <bryantan@xxxxxxxxxx>
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@xxxxxxxxxx>
[ 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@xxxxxxxxxx>
Reviewed-by: Aditya Sarwade <asarwade@xxxxxxxxxx>
Reviewed-by: Jorgen Hansen <jhansen@xxxxxxxxxx>
Signed-off-by: Bryan Tan <bryantan@xxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxx are
queue-4.14/rdma-vmw_pvrdma-call-ib_umem_release-on-destroy-qp-path.patch