From: patchwork-bot+netdevbpf@kernel.org
To: Chengfeng Ye <nicoyip.dev@gmail.com>
Cc: emil@etsalapatis.com, edumazet@google.com, ncardwell@google.com,
kuniyu@google.com, john.fastabend@gmail.com,
jakub@cloudflare.com, jiayuan.chen@linux.dev,
davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
horms@kernel.org, ast@kernel.org, daniel@iogearbox.net,
netdev@vger.kernel.org, bpf@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf v4] bpf, sockmap: Fix cork use-after-free in tcp_bpf_sendmsg()
Date: Fri, 24 Jul 2026 22:10:12 +0000 [thread overview]
Message-ID: <178493101265.3330129.14153213405975087302.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260724103856.3399001-1-nicoyip.dev@gmail.com>
Hello:
This patch was applied to bpf/bpf.git (master)
by Eduard Zingerman <eddyz87@gmail.com>:
On Fri, 24 Jul 2026 18:38:56 +0800 you wrote:
> tcp_bpf_sendmsg() keeps msg_tx across sk_stream_wait_memory(), which
> drops and reacquires the socket lock. Its error path tries to decide
> whether msg_tx names the local temporary message by comparing it with
> the current value of psock->cork.
>
> This comparison is unsafe when two threads send on the same socket:
>
> [...]
Here is the summary with links:
- [bpf,v4] bpf, sockmap: Fix cork use-after-free in tcp_bpf_sendmsg()
https://git.kernel.org/bpf/bpf/c/2d66a033864e
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
next prev parent reply other threads:[~2026-07-24 22:10 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-19 16:16 [PATCH] bpf, sockmap: Fix cork use-after-free in tcp_bpf_sendmsg() Chengfeng Ye
2026-07-20 16:17 ` sashiko-bot
2026-07-20 20:12 ` Emil Tsalapatis
2026-07-23 15:41 ` Chengfeng Ye
2026-07-23 15:34 ` [PATCH v2] bpf, sockmap: Fix cork ownership " Chengfeng Ye
2026-07-23 15:49 ` sashiko-bot
2026-07-23 16:26 ` [PATCH v3] " Chengfeng Ye
2026-07-23 16:39 ` sashiko-bot
2026-07-23 17:00 ` Jakub Kicinski
2026-07-24 9:40 ` Jakub Sitnicki
2026-07-24 10:02 ` Chengfeng Ye
2026-07-24 10:07 ` Jakub Sitnicki
2026-07-24 10:38 ` [PATCH bpf v4] bpf, sockmap: Fix cork use-after-free " Chengfeng Ye
2026-07-24 10:48 ` Jakub Sitnicki
2026-07-24 10:56 ` sashiko-bot
2026-07-24 22:10 ` patchwork-bot+netdevbpf [this message]
2026-07-24 10:43 ` [PATCH v3] bpf, sockmap: Fix cork ownership " Chengfeng Ye
2026-07-23 17:44 ` bot+bpf-ci
2026-07-25 6:09 ` bot+bpf-ci
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