linux-kernel - Re: [PATCH v2] ethernet:enic: Fix a use after free bug in enic_hard_start

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Date:   Mon, 03 May 2021 20:30:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Lv Yunlong <lyl2019@...l.ustc.edu.cn>
Cc:     benve@...co.com, _govind@....com, davem@...emloft.net,
        kuba@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ethernet:enic: Fix a use after free bug in
 enic_hard_start_xmit

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Sun,  2 May 2021 04:58:18 -0700 you wrote:
> In enic_hard_start_xmit, it calls enic_queue_wq_skb(). Inside
> enic_queue_wq_skb, if some error happens, the skb will be freed
> by dev_kfree_skb(skb). But the freed skb is still used in
> skb_tx_timestamp(skb).
> 
> My patch makes enic_queue_wq_skb() return error and goto spin_unlock()
> incase of error. The solution is provided by Govind.
> See https://lkml.org/lkml/2021/4/30/961.
> 
> [...]

Here is the summary with links:
  - [v2] ethernet:enic: Fix a use after free bug in enic_hard_start_xmit
    https://git.kernel.org/netdev/net/c/643001b47adc

You are awesome, thank you!
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