From: patchwork-bot+netdevbpf@kernel.org
To: Tze-nan Wu <Tze-nan.Wu@mediatek.com>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, ast@kernel.org,
sdf@fomichev.me, alexei.starovoitov@gmail.com,
bobule.chang@mediatek.com, wsd_upstream@mediatek.com,
linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
kuniyu@amazon.com, chen-yao.chang@mediatek.com,
yanghui.li@mediatek.com, cheng-jui.wang@mediatek.com,
daniel@iogearbox.net, john.fastabend@gmail.com,
andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com,
song@kernel.org, yonghong.song@linux.dev, kpsingh@kernel.org,
haoluo@google.com, jolsa@kernel.org, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH net v5] bpf, net: Fix a potential race in do_sock_getsockopt()
Date: Tue, 03 Sep 2024 20:10:30 +0000 [thread overview]
Message-ID: <172539423002.426047.5750436407367309589.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20240830082518.23243-1-Tze-nan.Wu@mediatek.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Fri, 30 Aug 2024 16:25:17 +0800 you wrote:
> There's a potential race when `cgroup_bpf_enabled(CGROUP_GETSOCKOPT)` is
> false during the execution of `BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN`, but
> becomes true when `BPF_CGROUP_RUN_PROG_GETSOCKOPT` is called.
> This inconsistency can lead to `BPF_CGROUP_RUN_PROG_GETSOCKOPT` receiving
> an "-EFAULT" from `__cgroup_bpf_run_filter_getsockopt(max_optlen=0)`.
> Scenario shown as below:
>
> [...]
Here is the summary with links:
- [net,v5] bpf, net: Fix a potential race in do_sock_getsockopt()
https://git.kernel.org/netdev/net/c/33f339a1ba54
You are awesome, thank you!
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prev parent reply other threads:[~2024-09-03 20:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-30 8:25 [PATCH net v5] bpf, net: Fix a potential race in do_sock_getsockopt() Tze-nan Wu
2024-08-31 3:29 ` Stanislav Fomichev
2024-08-31 22:06 ` Alexei Starovoitov
2024-09-03 20:10 ` patchwork-bot+netdevbpf [this message]
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