From: "Alexei Starovoitov" <alexei.starovoitov@gmail.com>
To: "Ömer Mete Kaya" <omermetekaya0@gmail.com>,
"John Fastabend" <john.fastabend@gmail.com>,
"Jakub Sitnicki" <jakub@cloudflare.com>,
"Jiayuan Chen" <jiayuan.chen@linux.dev>
Cc: "Eric Dumazet" <edumazet@kernel.org>,
"Neal Cardwell" <ncardwell@google.com>,
"Kuniyuki Iwashima" <kuniyu@google.com>,
"David S . Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Simon Horman" <horms@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
<netdev@vger.kernel.org>, <bpf@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] bpf, sockmap: fix cork data loss after redirect
Date: Sat, 14 Nov 2026 16:34:20 +0000 [thread overview]
Message-ID: <DMV2UXIE0LQ9.29AJR2CMSPH67@gmail.com> (raw)
In-Reply-To: <20261114115222.180345-1-omermetekaya0@gmail.com>
On Sat, Nov 14, 2026 at 03:46 AM Ömer Mete Kaya <omermetekaya0@gmail.com> wrote:
> In tcp_bpf_send_verdict(), when a corked message is redirected via
> __SK_REDIRECT, the cork cleanup path unconditionally frees the entire
> message and sets msg to NULL, even when only a partial send was
> performed (tosend < total msg size due to apply_bytes).
It's fixed already. See bpf tree:
commit 13c41b87e4a7 ("bpf, sockmap: Keep the rest of the cork after a redirect")
tcp_bpf_send_verdict() puts the rest back into psock->cork
and goes to more_data.
pw-bot: cr
prev parent reply other threads:[~2026-11-14 16:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-14 11:46 Ömer Mete Kaya
2026-11-14 16:34 ` Alexei Starovoitov [this message]
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