linux-kernel - Re: [PATCH net] ethtool: ioctl: fix potential NULL deref in ethtool_set

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Date:   Fri, 26 Nov 2021 19:30:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Julian Wiedmann <jwi@...ux.ibm.com>
Cc:     davem@...emloft.net, kuba@...nel.org, moyufeng@...wei.com,
        tanhuazhong@...wei.com, andrew@...n.ch, hkallweit1@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] ethtool: ioctl: fix potential NULL deref in
 ethtool_set_coalesce()

Hello:

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

On Fri, 26 Nov 2021 18:55:43 +0100 you wrote:
> ethtool_set_coalesce() now uses both the .get_coalesce() and
> .set_coalesce() callbacks. But the check for their availability is
> buggy, so changing the coalesce settings on a device where the driver
> provides only _one_ of the callbacks results in a NULL pointer
> dereference instead of an -EOPNOTSUPP.
> 
> Fix the condition so that the availability of both callbacks is
> ensured. This also matches the netlink code.
> 
> [...]

Here is the summary with links:
  - [net] ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()
    https://git.kernel.org/netdev/net/c/0276af2176c7

You are awesome, thank you!
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