netdev - Re: [PATCH net] net/tls: Remove the context from the list in tls_device

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Date:   Sun, 24 Jul 2022 20:50:12 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Maxim Mikityanskiy <maximmi@...dia.com>
Cc:     kuba@...nel.org, netdev@...r.kernel.org, borisp@...dia.com,
        john.fastabend@...il.com, davem@...emloft.net, edumazet@...gle.com,
        pabeni@...hat.com, tariqt@...dia.com
Subject: Re: [PATCH net] net/tls: Remove the context from the list in
 tls_device_down

Hello:

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

On Thu, 21 Jul 2022 12:11:27 +0300 you wrote:
> tls_device_down takes a reference on all contexts it's going to move to
> the degraded state (software fallback). If sk_destruct runs afterwards,
> it can reduce the reference counter back to 1 and return early without
> destroying the context. Then tls_device_down will release the reference
> it took and call tls_device_free_ctx. However, the context will still
> stay in tls_device_down_list forever. The list will contain an item,
> memory for which is released, making a memory corruption possible.
> 
> [...]

Here is the summary with links:
  - [net] net/tls: Remove the context from the list in tls_device_down
    https://git.kernel.org/netdev/net/c/f6336724a4d4

You are awesome, thank you!
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