netdev - Re: [PATCH net] sctp: trim optlen when it's a huge value in sctp

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Message-Id: <162662700503.19662.17700177821485021975.git-patchwork-notify@kernel.org>
Date:   Sun, 18 Jul 2021 16:50:05 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Xin Long <lucien.xin@...il.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        linux-sctp@...r.kernel.org, marcelo.leitner@...il.com
Subject: Re: [PATCH net] sctp: trim optlen when it's a huge value in
 sctp_setsockopt

Hello:

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

On Sat, 17 Jul 2021 17:19:19 -0400 you wrote:
> After commit ca84bd058dae ("sctp: copy the optval from user space in
> sctp_setsockopt"), it does memory allocation in sctp_setsockopt with
> the optlen, and it would fail the allocation and return error if the
> optlen from user space is a huge value.
> 
> This breaks some sockopts, like SCTP_HMAC_IDENT, SCTP_RESET_STREAMS and
> SCTP_AUTH_KEY, as when processing these sockopts before, optlen would
> be trimmed to a biggest value it needs when optlen is a huge value,
> instead of failing the allocation and returning error.
> 
> [...]

Here is the summary with links:
  - [net] sctp: trim optlen when it's a huge value in sctp_setsockopt
    https://git.kernel.org/netdev/net/c/2f3fdd8d4805

You are awesome, thank you!
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