From: Yonghong Song <yonghong.song@linux.dev>
To: Paul Chaignon <paul.chaignon@gmail.com>, bpf@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Eduard Zingerman <eddyz87@gmail.com>,
Martin KaFai Lau <martin.lau@linux.dev>,
netfilter-devel@vger.kernel.org,
Pablo Neira Ayuso <pablo@netfilter.org>,
Jozsef Kadlecsik <kadlec@netfilter.org>,
Petar Penkov <ppenkov@google.com>,
Florian Westphal <fw@strlen.de>
Subject: Re: [PATCH bpf 4/4] selftests/bpf: Test for unaligned flow_dissector ctx access
Date: Fri, 1 Aug 2025 09:33:44 -0700 [thread overview]
Message-ID: <ed412825-5de5-465d-bc25-7eda8a45d288@linux.dev> (raw)
In-Reply-To: <bf014046ddcf41677fb8b98d150c14027e9fddba.1754039605.git.paul.chaignon@gmail.com>
On 8/1/25 2:49 AM, Paul Chaignon wrote:
> This patch adds tests for two context fields where unaligned accesses
> were not properly rejected.
>
> Note the new macro is similar to the existing narrow_load macro, but we
> need a different description and access offset. Combining the two
> macros into one is probably doable but I don't think it would help
> readability.
>
> vmlinux.h is included in place of bpf.h so we have the definition of
> struct bpf_nf_ctx.
>
> Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
next prev parent reply other threads:[~2025-08-01 16:33 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-01 9:47 [PATCH bpf 1/4] bpf: Check flow_dissector ctx accesses are aligned Paul Chaignon
2025-08-01 9:48 ` [PATCH bpf 2/4] bpf: Check netfilter " Paul Chaignon
2025-08-01 15:54 ` Yonghong Song
2025-08-01 16:06 ` Eduard Zingerman
2025-08-01 9:49 ` [PATCH bpf 3/4] bpf: Improve ctx access verifier error message Paul Chaignon
2025-08-01 16:09 ` Eduard Zingerman
2025-08-01 16:19 ` Paul Chaignon
2025-08-01 16:24 ` Eduard Zingerman
2025-08-01 16:30 ` Yonghong Song
2025-08-01 21:47 ` Alexei Starovoitov
2025-08-02 0:00 ` Yonghong Song
2025-08-01 9:49 ` [PATCH bpf 4/4] selftests/bpf: Test for unaligned flow_dissector ctx access Paul Chaignon
2025-08-01 16:17 ` Eduard Zingerman
2025-08-01 16:33 ` Yonghong Song [this message]
2025-08-01 15:52 ` [PATCH bpf 1/4] bpf: Check flow_dissector ctx accesses are aligned Yonghong Song
2025-08-01 16:04 ` Eduard Zingerman
2025-08-01 16:30 ` patchwork-bot+netdevbpf
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