From: Jakub Kicinski <kuba@kernel.org>
To: Yang Yingliang <yangyingliang@huawei.com>
Cc: Leon Romanovsky <leon@kernel.org>, <netdev@vger.kernel.org>,
<jiri@nvidia.com>, <davem@davemloft.net>, <edumazet@google.com>,
<pabeni@redhat.com>
Subject: Re: [PATCH net] net: devlink: fix UAF in devlink_compat_running_version()
Date: Wed, 23 Nov 2022 18:20:34 -0800 [thread overview]
Message-ID: <20221123182034.3914e03a@kernel.org> (raw)
In-Reply-To: <405f703b-b97e-afdd-8d5f-48b8f99d045d@huawei.com>
On Wed, 23 Nov 2022 14:40:24 +0800 Yang Yingliang wrote:
> > if (err)
> > - goto err_dl_unregister;
> > + goto err_resource_unregister;
> > nsim_devlink_set_params_init_values(nsim_dev, devlink);
> >
> > + /* here, because params API still expect devlink to be unregistered */
> > + devl_register(devlink);
> > +
> devlink_set_features() called at last in probe() also needs devlink is
> not registered.
You can move the devlink_set_features() up. It's also a leftover,
it was preventing reload from happening before probe has finished.
Now the instance is locked until probe is done so there is no race.
next prev parent reply other threads:[~2022-11-24 2:20 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-22 12:10 [PATCH net] net: devlink: fix UAF in devlink_compat_running_version() Yang Yingliang
2022-11-22 14:32 ` Leon Romanovsky
2022-11-22 15:25 ` Yang Yingliang
2022-11-22 19:04 ` Leon Romanovsky
2022-11-22 20:27 ` Jakub Kicinski
2022-11-23 1:50 ` Yang Yingliang
2022-11-23 6:40 ` Yang Yingliang
2022-11-23 7:41 ` Leon Romanovsky
2022-11-23 8:34 ` Yang Yingliang
2022-11-23 9:33 ` Leon Romanovsky
2022-11-23 19:18 ` Ido Schimmel
2022-11-24 2:18 ` Jakub Kicinski
2022-11-24 5:56 ` Leon Romanovsky
2022-11-28 9:20 ` Ido Schimmel
2022-11-28 9:58 ` Jiri Pirko
2022-11-28 11:50 ` Leon Romanovsky
2022-11-28 13:52 ` Jiri Pirko
2022-11-29 8:44 ` Leon Romanovsky
2022-11-29 9:05 ` Jiri Pirko
2022-11-29 11:20 ` Leon Romanovsky
2022-11-29 11:44 ` Jiri Pirko
2022-11-28 18:20 ` Jakub Kicinski
2022-11-29 8:31 ` Jiri Pirko
2022-11-30 2:18 ` Jakub Kicinski
2022-11-30 8:54 ` Leon Romanovsky
2022-11-30 11:32 ` Jiri Pirko
2022-11-30 16:36 ` Jakub Kicinski
2022-11-30 11:42 ` Jiri Pirko
2022-11-30 16:46 ` Jakub Kicinski
2022-11-30 17:00 ` Jiri Pirko
2022-11-30 17:20 ` Jakub Kicinski
2022-11-30 19:20 ` Leon Romanovsky
2022-12-01 8:40 ` Jiri Pirko
2022-12-01 10:05 ` Leon Romanovsky
2022-12-01 12:20 ` Jiri Pirko
2022-12-01 8:39 ` Jiri Pirko
2022-11-30 22:25 ` Jacob Keller
2022-11-24 2:20 ` Jakub Kicinski [this message]
2022-11-24 2:47 ` Jakub Kicinski
2022-11-24 7:28 ` Yang Yingliang
2022-11-28 10:01 ` Jiri Pirko
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