Re: [PATCH bpf-next v6 7/8] bpf, net: Support SO_REUSEPORT sockets with bpf_sk_assign

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To: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>
Subject: Re: [PATCH bpf-next v6 7/8] bpf, net: Support SO_REUSEPORT sockets with bpf_sk_assign
From: Lorenz Bauer <lmb@xxxxxxxxxxxxx>
Date: Tue, 8 Aug 2023 17:35:59 +0100
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, Paolo Abeni <pabeni@xxxxxxxxxx>, David Ahern <dsahern@xxxxxxxxxx>, Willem de Bruijn <willemdebruijn.kernel@xxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Martin KaFai Lau <martin.lau@xxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Yonghong Song <yhs@xxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Stanislav Fomichev <sdf@xxxxxxxxxx>, Hao Luo <haoluo@xxxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Joe Stringer <joe@xxxxxxxxxxx>, Mykola Lysenko <mykolal@xxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>, Hemanth Malla <hemanthmalla@xxxxxxxxx>, netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, Joe Stringer <joe@xxxxxxxxx>
In-reply-to: <CAP01T76fZhrELGxsm5-u85AL5994mS0NGZd6gw-RYaHE8vKfTA@mail.gmail.com>

On Tue, Aug 8, 2023 at 5:23 AM Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> wrote:
>
> Hi Lorenz, Kuniyuki, Martin,
>
> I am getting a KASAN (inline mode) splat on bpf-next when I run
> ./test_progs -t btf_skc_cls_ingress, and I bisected it to this commit:
> 9c02bec95954 ("bpf, net: Support SO_REUSEPORT sockets with bpf_sk_assign")

Thanks for the report. I forgot about struct request_sock again...
I'll have a fix shortly, I hope.

Lorenz

References:
- [PATCH bpf-next v6 0/8] Add SO_REUSEPORT support for TC bpf_sk_assign
  - From: Lorenz Bauer
- [PATCH bpf-next v6 7/8] bpf, net: Support SO_REUSEPORT sockets with bpf_sk_assign
  - From: Lorenz Bauer
- Re: [PATCH bpf-next v6 7/8] bpf, net: Support SO_REUSEPORT sockets with bpf_sk_assign
  - From: Kumar Kartikeya Dwivedi

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