From: David Sterba <dsterba@suse.cz>
To: Qingfang Deng <dqfext@gmail.com>
Cc: Jiri Kosina <jikos@kernel.org>, David Sterba <dsterba@suse.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Stephen Blackheath <stephen@symmetric.co.nz>,
Ben Martel <benm@symmetric.co.nz>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org
Subject: Re: [PATCH] tty: ipwireless: fix memory leak in do_go_offline()
Date: Thu, 12 Mar 2026 13:00:36 +0100 [thread overview]
Message-ID: <20260312120036.GF5735@suse.cz> (raw)
In-Reply-To: <20260306034058.386747-1-dqfext@gmail.com>
On Fri, Mar 06, 2026 at 11:40:58AM +0800, Qingfang Deng wrote:
> The ppp_channel is allocated and registered in do_go_online(). But when
> the channel is unregistered in do_go_offline(), the driver forgets to
> release its memory. This leads to a memory leak each time the network
> goes online and then offline.
>
> Fix this by adding a kfree call after unregistering the channel.
>
> Fixes: 099dc4fb6265 ("ipwireless: driver for PC Card 3G/UMTS modem")
> Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Thanks, but the driver is going to be deleted.
next prev parent reply other threads:[~2026-03-12 12:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-06 3:40 [PATCH] tty: ipwireless: fix memory leak in do_go_offline() Qingfang Deng
2026-03-12 12:00 ` David Sterba [this message]
2026-03-12 13:40 ` Greg Kroah-Hartman
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