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From: patchwork-bot+netdevbpf@kernel.org
To: David Howells <dhowells@redhat.com>
Cc: netdev@vger.kernel.org, willemdebruijn.kernel@gmail.com,
	syzbot+f527b971b4bdc8e79f9e@syzkaller.appspotmail.com,
	bpf@vger.kernel.org, brauner@kernel.org, davem@davemloft.net,
	dsahern@kernel.org, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, axboe@kernel.dk, viro@zeniv.linux.org.uk,
	linux-fsdevel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] udp: Fix __ip_append_data()'s handling of MSG_SPLICE_PAGES
Date: Thu, 03 Aug 2023 02:30:21 +0000	[thread overview]
Message-ID: <169102982164.22584.2159457611636116632.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <1420063.1690904933@warthog.procyon.org.uk>

Hello:

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

On Tue, 01 Aug 2023 16:48:53 +0100 you wrote:
> __ip_append_data() can get into an infinite loop when asked to splice into
> a partially-built UDP message that has more than the frag-limit data and up
> to the MTU limit.  Something like:
> 
>         pipe(pfd);
>         sfd = socket(AF_INET, SOCK_DGRAM, 0);
>         connect(sfd, ...);
>         send(sfd, buffer, 8161, MSG_CONFIRM|MSG_MORE);
>         write(pfd[1], buffer, 8);
>         splice(pfd[0], 0, sfd, 0, 0x4ffe0ul, 0);
> 
> [...]

Here is the summary with links:
  - [net] udp: Fix __ip_append_data()'s handling of MSG_SPLICE_PAGES
    https://git.kernel.org/netdev/net/c/0f71c9caf267

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2023-08-03  2:30 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-01 15:48 [PATCH net] udp: Fix __ip_append_data()'s handling of MSG_SPLICE_PAGES David Howells
2023-08-01 16:21 ` Willem de Bruijn
2023-08-01 16:57   ` David Howells
2023-08-01 20:11   ` David Howells
2023-08-01 21:11     ` Willem de Bruijn
2023-08-02 14:27 ` Willem de Bruijn
2023-08-03  2:30 ` patchwork-bot+netdevbpf [this message]

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