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From: Zesen Liu <ftyghome@gmail.com>
To: Amery Hung <ameryhung@gmail.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <martin.lau@linux.dev>,
	Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
	Yonghong Song <yonghong.song@linux.dev>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>,
	Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Matt Bobrowski <mattbobrowski@google.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Simon Horman <horms@kernel.org>, Daniel Xu <dxu@dxuuu.xyz>,
	Shuah Khan <shuah@kernel.org>,
	bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-trace-kernel@vger.kernel.org, netdev@vger.kernel.org,
	linux-kselftest@vger.kernel.org,
	Shuran Liu <electronlsr@gmail.com>,
	Peili Gao <gplhust955@gmail.com>,
	Haoran Ni <haoran.ni.cs@gmail.com>
Subject: Re: [RFC PATCH bpf 1/2] bpf: Fix memory access tags in helper prototypes
Date: Tue, 23 Dec 2025 11:22:26 +0800	[thread overview]
Message-ID: <0C2A0E4A-F35B-4247-B0C4-42C52C6786B7@gmail.com> (raw)
In-Reply-To: <CAMB2axPcJ=U69xyyyY_7og8OALRCbOgeppQv416k9yvMiD9CvQ@mail.gmail.com>


> On Dec 23, 2025, at 03:29, Amery Hung <ameryhung@gmail.com> wrote:
> 
> I did a quick search and there is one helper slipping. We should also
> annotate arg1_type of bpf_kallsyms_lookup_name with MEM_RDONLY.


Good catch, thanks! I will address this once we reach a conclusion
on the ARG_PTR_TO_MEM semantics.

Thanks,
Zesen Liu

  reply	other threads:[~2025-12-23  3:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-20 11:35 [RFC bpf PATCH 0/2] bpf: Fix memory access tags in helper prototypes Zesen Liu
2025-12-20 11:35 ` [RFC PATCH bpf 1/2] " Zesen Liu
2025-12-22 19:29   ` Amery Hung
2025-12-23  3:22     ` Zesen Liu [this message]
2025-12-20 11:35 ` [RFC PATCH bpf 2/2] selftests/bpf: add regression tests for snprintf and get_stack helpers Zesen Liu
2025-12-22 19:29 ` [RFC bpf PATCH 0/2] bpf: Fix memory access tags in helper prototypes Amery Hung
2025-12-23  3:15   ` Zesen Liu

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