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@microsoft.com --- drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c index ed34d5a581fa..d7162f2b7979 100644 --- 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_qp *qp) 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);