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Subject: Re: [PATCH net] net: marvell: prestera: fix double free issue on err path
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <163732321163.14736.8578198200279960716.git-patchwork-notify@kernel.org>
Date:   Fri, 19 Nov 2021 12:00:11 +0000
References: <1637265100-24752-1-git-send-email-volodymyr.mytnyk@plvision.eu>
In-Reply-To: <1637265100-24752-1-git-send-email-volodymyr.mytnyk@plvision.eu>
To:     Volodymyr Mytnyk <volodymyr.mytnyk@plvision.eu>
Cc:     netdev@vger.kernel.org, vladimir.oltean@nxp.com,
        ioana.ciornei@nxp.com, mickeyr@marvell.com,
        serhiy.pshyk@plvision.eu, taras.chornyi@plvision.eu,
        vmytnyk@marvell.com, tchornyi@marvell.com, davem@davemloft.net,
        kuba@kernel.org, vadym.kochan@plvision.eu,
        serhiy.boiko@plvision.eu, linux-kernel@vger.kernel.org
Precedence: bulk

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@davemloft.net>:

On Thu, 18 Nov 2021 21:51:40 +0200 you wrote:
> From: Volodymyr Mytnyk <vmytnyk@marvell.com>
> 
> fix error path handling in prestera_bridge_port_join() that
> cases prestera driver to crash (see below).
> 
>  Trace:
>    Internal error: Oops: 96000044 [#1] SMP
>    Modules linked in: prestera_pci prestera uio_pdrv_genirq
>    CPU: 1 PID: 881 Comm: ip Not tainted 5.15.0 #1
>    pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
>    pc : prestera_bridge_destroy+0x2c/0xb0 [prestera]
>    lr : prestera_bridge_port_join+0x2cc/0x350 [prestera]
>    sp : ffff800011a1b0f0
>    ...
>    x2 : ffff000109ca6c80 x1 : dead000000000100 x0 : dead000000000122
>     Call trace:
>    prestera_bridge_destroy+0x2c/0xb0 [prestera]
>    prestera_bridge_port_join+0x2cc/0x350 [prestera]
>    prestera_netdev_port_event.constprop.0+0x3c4/0x450 [prestera]
>    prestera_netdev_event_handler+0xf4/0x110 [prestera]
>    raw_notifier_call_chain+0x54/0x80
>    call_netdevice_notifiers_info+0x54/0xa0
>    __netdev_upper_dev_link+0x19c/0x380
> 
> [...]

Here is the summary with links:
  - [net] net: marvell: prestera: fix double free issue on err path
    https://git.kernel.org/netdev/net/c/e8d032507cb7

You are awesome, thank you!
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