netdev - Re: [PATCH v1 net] tcp: Fix listen() warning with v4-mapped-v6 address.

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Message-Id: 
 <169721702453.23617.16807645525327344015.git-patchwork-notify@kernel.org>
Date: Fri, 13 Oct 2023 17:10:24 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Kuniyuki Iwashima <kuniyu@...zon.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, dsahern@...nel.org, kuni1840@...il.com,
 netdev@...r.kernel.org, syzbot+71e724675ba3958edb31@...kaller.appspotmail.com
Subject: Re: [PATCH v1 net] tcp: Fix listen() warning with v4-mapped-v6 address.

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Mon, 9 Oct 2023 18:38:14 -0700 you wrote:
> syzbot reported a warning [0] introduced by commit c48ef9c4aed3 ("tcp: Fix
> bind() regression for v4-mapped-v6 non-wildcard address.").
> 
> After the cited commit, a v4 socket's address matches the corresponding
> v4-mapped-v6 tb2 in inet_bind2_bucket_match_addr(), not vice versa.
> 
> During X.X.X.X -> ::ffff:X.X.X.X order bind()s, the second bind() uses
> bhash and conflicts properly without checking bhash2 so that we need not
> check if a v4-mapped-v6 sk matches the corresponding v4 address tb2 in
> inet_bind2_bucket_match_addr().  However, the repro shows that we need
> to check that in a no-conflict case.
> 
> [...]

Here is the summary with links:
  - [v1,net] tcp: Fix listen() warning with v4-mapped-v6 address.
    https://git.kernel.org/netdev/net/c/8702cf12e6ba

You are awesome, thank you!
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