linux-kernel - Re: [PATCH] net:nfc:digital: Fix a double free in digital_tg_recv_dep

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Date:   Tue, 27 Apr 2021 22:40:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Lv Yunlong <lyl2019@...l.ustc.edu.cn>
Cc:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net:nfc:digital: Fix a double free in digital_tg_recv_dep_req

Hello:

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

On Tue, 27 Apr 2021 09:22:58 -0700 you wrote:
> In digital_tg_recv_dep_req, it calls nfc_tm_data_received(..,resp).
> If nfc_tm_data_received() failed, the callee will free the resp via
> kfree_skb() and return error. But in the exit branch, the resp
> will be freed again.
> 
> My patch sets resp to NULL if nfc_tm_data_received() failed, to
> avoid the double free.
> 
> [...]

Here is the summary with links:
  - net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
    https://git.kernel.org/netdev/net-next/c/75258586793e

You are awesome, thank you!
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