netdev - Re: [PATCH 1/1] io_uring/zcrx: fix overshooting recv limit

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Message-Id: <175994472198.2061199.6935762244237340434.b4-ty@kernel.dk>
Date: Wed, 08 Oct 2025 11:32:01 -0600
From: Jens Axboe <axboe@...nel.dk>
To: io-uring@...r.kernel.org, Pavel Begunkov <asml.silence@...il.com>
Cc: netdev@...r.kernel.org, Matthias Jasny <matthiasjasny@...il.com>
Subject: Re: [PATCH 1/1] io_uring/zcrx: fix overshooting recv limit


On Wed, 08 Oct 2025 13:38:06 +0100, Pavel Begunkov wrote:
> It's reported that sometimes a zcrx request can receive more than was
> requested. It's caused by io_zcrx_recv_skb() adjusting desc->count for
> all received buffers including frag lists, but then doing recursive
> calls to process frag list skbs, which leads to desc->count double
> accounting and underflow.
> 
> 
> [...]

Applied, thanks!

[1/1] io_uring/zcrx: fix overshooting recv limit
      commit: 09cfd3c52ea76f43b3cb15e570aeddf633d65e80

Best regards,
-- 
Jens Axboe