From: Jakub Kicinski <kuba@kernel.org>
To: Jiayuan Chen <jiayuan.chen@linux.dev>
Cc: bpf@vger.kernel.org, Cong Wang <xiyou.wangcong@gmail.com>,
John Fastabend <john.fastabend@gmail.com>,
Boris Pismenny <borisp@nvidia.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Eduard Zingerman <eddyz87@gmail.com>,
Mykola Lysenko <mykolal@fb.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>, Shuah Khan <shuah@kernel.org>,
Ihor Solodrai <isolodrai@meta.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH bpf-next v2 1/2] bpf,ktls: Fix data corruption when using bpf_msg_pop_data() in ktls
Date: Mon, 9 Jun 2025 12:33:58 -0700 [thread overview]
Message-ID: <20250609123358.4e024e62@kernel.org> (raw)
In-Reply-To: <20250609020910.397930-2-jiayuan.chen@linux.dev>
On Mon, 9 Jun 2025 10:08:52 +0800 Jiayuan Chen wrote:
> When sending plaintext data, we initially calculated the corresponding
> ciphertext length. However, if we later reduced the plaintext data length
> via socket policy, we failed to recalculate the ciphertext length.
>
> This results in transmitting buffers containing uninitialized data during
> ciphertext transmission.
>
> This causes uninitialized bytes to be appended after a complete
> "Application Data" packet, leading to errors on the receiving end when
> parsing TLS record.
Acked-by: Jakub Kicinski <kuba@kernel.org>
next prev parent reply other threads:[~2025-06-09 19:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-09 2:08 [PATCH bpf-next v2 0/2] bpf,ktls: Fix data corruption caused by using bpf_msg_pop_data() in ktls Jiayuan Chen
2025-06-09 2:08 ` [PATCH bpf-next v2 1/2] bpf,ktls: Fix data corruption when " Jiayuan Chen
2025-06-09 19:33 ` Jakub Kicinski [this message]
2025-06-09 2:08 ` [PATCH bpf-next v2 2/2] selftests/bpf: Add test to cover ktls with bpf_msg_pop_data Jiayuan Chen
2025-06-11 5:08 ` John Fastabend
2025-06-11 15:10 ` [PATCH bpf-next v2 0/2] bpf,ktls: Fix data corruption caused by using bpf_msg_pop_data() in ktls patchwork-bot+netdevbpf
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