From: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp
[ Upstream commit 266e9b3475ba82212062771fdbc40be0e3c06ec8 ]
syzbot is reporting that siw_netdev_event(NETDEV_UNREGISTER) cannot destroy siw_device created after unshare(CLONE_NEWNET) due to net namespace check. It seems that this check was by error there and should be removed.
Reported-by: syzbot syzbot+5e70d01ee8985ae62a3b@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=5e70d01ee8985ae62a3b Suggested-by: Jason Gunthorpe jgg@ziepe.ca Suggested-by: Leon Romanovsky leon@kernel.org Fixes: bdcf26bf9b3a ("rdma/siw: network and RDMA core interface") Signed-off-by: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp Link: https://lore.kernel.org/r/a44e9ac5-44e2-d575-9e30-02483cc7ffd1@I-love.SAKURA... Reviewed-by: Bernard Metzler bmt@zurich.ibm.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/sw/siw/siw_main.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/infiniband/sw/siw/siw_main.c b/drivers/infiniband/sw/siw/siw_main.c index 9093e6a80b260..f853f3c23540a 100644 --- a/drivers/infiniband/sw/siw/siw_main.c +++ b/drivers/infiniband/sw/siw/siw_main.c @@ -437,9 +437,6 @@ static int siw_netdev_event(struct notifier_block *nb, unsigned long event,
dev_dbg(&netdev->dev, "siw: event %lu\n", event);
- if (dev_net(netdev) != &init_net) - return NOTIFY_OK; - base_dev = ib_device_get_by_netdev(netdev, RDMA_DRIVER_SIW); if (!base_dev) return NOTIFY_OK;