linux-kernel - Re: [PATCH net] net: phy: prevent stale pointer dereference in phy

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Message-Id: <168988322273.13634.6290441658966987818.git-patchwork-notify@kernel.org>
Date:   Thu, 20 Jul 2023 20:00:22 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, andrew@...n.ch,
        hkallweit1@...il.com, linux@...linux.org.uk, f.fainelli@...il.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: phy: prevent stale pointer dereference in phy_init()

Hello:

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

On Thu, 20 Jul 2023 03:02:31 +0300 you wrote:
> mdio_bus_init() and phy_driver_register() both have error paths, and if
> those are ever hit, ethtool will have a stale pointer to the
> phy_ethtool_phy_ops stub structure, which references memory from a
> module that failed to load (phylib).
> 
> It is probably hard to force an error in this code path even manually,
> but the error teardown path of phy_init() should be the same as
> phy_exit(), which is now simply not the case.
> 
> [...]

Here is the summary with links:
  - [net] net: phy: prevent stale pointer dereference in phy_init()
    https://git.kernel.org/netdev/net/c/1c613beaf877

You are awesome, thank you!
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