This is a note to let you know that I've just added the patch titled IB/mlx4: Fix memory leak if QP creation failed to the 4.4-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: ib-mlx4-fix-memory-leak-if-qp-creation-failed.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 5b420d9cf7382c6e1512e96e02d18842d272049c Mon Sep 17 00:00:00 2001 From: Dotan Barak <dotanb@xxxxxxxxxxxxxxxxxx> Date: Wed, 22 Jun 2016 17:27:31 +0300 Subject: IB/mlx4: Fix memory leak if QP creation failed From: Dotan Barak <dotanb@xxxxxxxxxxxxxxxxxx> commit 5b420d9cf7382c6e1512e96e02d18842d272049c upstream. When RC, UC, or RAW QPs are created, a qp object is allocated (kzalloc). If at a later point (in procedure create_qp_common) the qp creation fails, this qp object must be freed. Fixes: 1ffeb2eb8be99 ("IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support") Signed-off-by: Dotan Barak <dotanb@xxxxxxxxxxxxxxxxxx> Signed-off-by: Jack Morgenstein <jackm@xxxxxxxxxxxxxxxxxx> Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx> Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/infiniband/hw/mlx4/qp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1162,8 +1162,10 @@ struct ib_qp *mlx4_ib_create_qp(struct i { err = create_qp_common(to_mdev(pd->device), pd, init_attr, udata, 0, &qp, gfp); - if (err) + if (err) { + kfree(qp); return ERR_PTR(err); + } qp->ibqp.qp_num = qp->mqp.qpn; qp->xrcdn = xrcdn; Patches currently in stable-queue which might be from dotanb@xxxxxxxxxxxxxxxxxx are queue-4.4/ib-mlx4-fix-memory-leak-if-qp-creation-failed.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html