linux-kernel - Re: [PATCH net] usbnet: Fix memory leak in usbnet

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Date:   Mon, 26 Sep 2022 18:40:14 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Peilin Ye <yepeilin.cs@...il.com>
Cc:     oneukum@...e.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, peilin.ye@...edance.com,
        gregkh@...uxfoundation.org, ming.lei@...onical.com,
        cong.wang@...edance.com, netdev@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] usbnet: Fix memory leak in usbnet_disconnect()

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Thu, 22 Sep 2022 21:25:51 -0700 you wrote:
> From: Peilin Ye <peilin.ye@...edance.com>
> 
> Currently usbnet_disconnect() unanchors and frees all deferred URBs
> using usb_scuttle_anchored_urbs(), which does not free urb->context,
> causing a memory leak as reported by syzbot.
> 
> Use a usb_get_from_anchor() while loop instead, similar to what we did
> in commit 19cfe912c37b ("Bluetooth: btusb: Fix memory leak in
> play_deferred").  Also free urb->sg.
> 
> [...]

Here is the summary with links:
  - [net] usbnet: Fix memory leak in usbnet_disconnect()
    https://git.kernel.org/netdev/net/c/a43206156263

You are awesome, thank you!
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