netdev - Re: [PATCH net] sctp: fix a potential overflow in sctp_ifwdtsn

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Date:   Thu, 13 Apr 2023 08:20:17 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Xin Long <lucien.xin@...il.com>
Cc:     netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
        davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com,
        pabeni@...hat.com, marcelo.leitner@...il.com
Subject: Re: [PATCH net] sctp: fix a potential overflow in sctp_ifwdtsn_skip

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Mon, 10 Apr 2023 15:43:30 -0400 you wrote:
> Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only
> checks the pos against the end of the chunk. However, the data left for
> the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference
> it as struct sctp_ifwdtsn_skip may cause coverflow.
> 
> This patch fixes it by checking the pos against "the end of the chunk -
> sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to
> sctp_fwdtsn_skip.
> 
> [...]

Here is the summary with links:
  - [net] sctp: fix a potential overflow in sctp_ifwdtsn_skip
    https://git.kernel.org/netdev/net/c/32832a2caf82

You are awesome, thank you!
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