From: Yonghong Song <yonghong.song@linux.dev>
To: Yiyang Chen <chenyy23@mails.tsinghua.edu.cn>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Eduard Zingerman <eddyz87@gmail.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: John Fastabend <john.fastabend@gmail.com>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Emil Tsalapatis <emil@etsalapatis.com>,
Shuah Khan <shuah@kernel.org>, Viktor Malik <vmalik@redhat.com>,
Leon Hwang <leon.hwang@linux.dev>,
Dave Marchevsky <davemarchevsky@fb.com>,
bpf@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf-next v4 2/2] selftests/bpf: Cover refcount acquire node offsets
Date: Thu, 25 Jun 2026 14:39:09 -0700 [thread overview]
Message-ID: <91fb97e6-f6da-49c0-bd0b-3dc8390ca3ee@linux.dev> (raw)
In-Reply-To: <bf2a2033ced272106292de4465b8ef3fb991c912.1782192383.git.chenyy23@mails.tsinghua.edu.cn>
On 6/22/26 11:11 PM, Yiyang Chen wrote:
> Add regression coverage for bpf_refcount_acquire() on graph-node-derived
> pointers.
>
> The rejected case passes a popped list node pointer directly to
> bpf_refcount_acquire(), which must fail because the pointer carries a
> non-zero fixed offset.
>
> Signed-off-by: Yiyang Chen <chenyy23@mails.tsinghua.edu.cn>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
next prev parent reply other threads:[~2026-06-25 21:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-23 6:11 [PATCH bpf-next v4 0/2] bpf: Reject offset refcount acquire arguments Yiyang Chen
2026-06-23 6:11 ` [PATCH bpf-next v4 1/2] " Yiyang Chen
2026-06-23 7:01 ` bot+bpf-ci
2026-06-23 21:52 ` Emil Tsalapatis
2026-06-25 21:30 ` Yonghong Song
2026-06-23 6:11 ` [PATCH bpf-next v4 2/2] selftests/bpf: Cover refcount acquire node offsets Yiyang Chen
2026-06-23 21:50 ` Emil Tsalapatis
2026-06-25 21:39 ` Yonghong Song [this message]
2026-06-26 12:27 ` [PATCH bpf-next v4 0/2] bpf: Reject offset refcount acquire arguments patchwork-bot+netdevbpf
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