From: patchwork-bot+netdevbpf@kernel.org
To: Weiming Shi <bestswngs@gmail.com>
Cc: netdev@vger.kernel.org, willemdebruijn.kernel@gmail.com,
jasowang@redhat.com, pabeni@redhat.com, kuba@kernel.org,
edumazet@google.com, dongli.zhang@oracle.com, xmei5@asu.edu,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] tap: free page on error paths in tap_get_user_xdp()
Date: Fri, 22 May 2026 17:20:07 +0000 [thread overview]
Message-ID: <177947040789.1299893.10534056017366227838.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260521163230.1478627-2-bestswngs@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Thu, 21 May 2026 09:32:31 -0700 you wrote:
> tap_get_user_xdp() rejects a frame shorter than ETH_HLEN with -EINVAL,
> and returns -ENOMEM when build_skb() fails. Both paths jump to the err
> label without freeing the page that vhost_net_build_xdp() allocated for
> the frame. tap_sendmsg() discards the per-buffer return value and always
> returns 0, so vhost_tx_batch() takes the success path and never frees
> the page; each rejected frame in a batch leaks one page-frag chunk.
>
> [...]
Here is the summary with links:
- [net] tap: free page on error paths in tap_get_user_xdp()
https://git.kernel.org/netdev/net/c/3bcf7aec6a9d
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2026-05-22 17:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-21 16:32 [PATCH net] tap: free page on error paths in tap_get_user_xdp() Weiming Shi
2026-05-21 21:04 ` Dongli Zhang
2026-05-22 13:44 ` Willem de Bruijn
2026-05-22 17:20 ` patchwork-bot+netdevbpf [this message]
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