From: Martin KaFai Lau <kafai@fb.com>
To: Stanislav Fomichev <sdf@google.com>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, ast@kernel.org,
daniel@iogearbox.net, andrii@kernel.org
Subject: Re: [PATCH bpf-next v8 11/11] selftests/bpf: verify lsm_cgroup struct sock access
Date: Thu, 2 Jun 2022 18:52:25 -0700 [thread overview]
Message-ID: <20220603015225.lc4q3vkmsfnkgdq2@kafai-mbp> (raw)
In-Reply-To: <20220601190218.2494963-12-sdf@google.com>
On Wed, Jun 01, 2022 at 12:02:18PM -0700, Stanislav Fomichev wrote:
> sk_priority & sk_mark are writable, the rest is readonly.
>
> One interesting thing here is that the verifier doesn't
> really force me to add NULL checks anywhere :-/
Are you aware if it is possible to get a NULL sk from some of the
bpf_lsm hooks ?
next prev parent reply other threads:[~2022-06-03 1:52 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-01 19:02 [PATCH bpf-next v8 00/11] bpf: cgroup_sock lsm flavor Stanislav Fomichev
2022-06-01 19:02 ` [PATCH bpf-next v8 01/11] bpf: add bpf_func_t and trampoline helpers Stanislav Fomichev
2022-06-01 19:02 ` [PATCH bpf-next v8 02/11] bpf: convert cgroup_bpf.progs to hlist Stanislav Fomichev
2022-06-01 19:02 ` [PATCH bpf-next v8 03/11] bpf: per-cgroup lsm flavor Stanislav Fomichev
2022-06-02 6:16 ` kernel test robot
2022-06-02 16:49 ` Stanislav Fomichev
2022-06-02 16:49 ` Stanislav Fomichev
2022-06-04 6:11 ` Martin KaFai Lau
2022-06-04 8:27 ` Martin KaFai Lau
2022-06-06 22:46 ` Stanislav Fomichev
2022-06-06 22:46 ` Stanislav Fomichev
2022-06-07 19:24 ` Martin KaFai Lau
2022-06-01 19:02 ` [PATCH bpf-next v8 04/11] bpf: minimize number of allocated lsm slots per program Stanislav Fomichev
2022-06-04 6:35 ` Martin KaFai Lau
2022-06-06 22:46 ` Stanislav Fomichev
2022-06-07 19:57 ` Martin KaFai Lau
2022-06-01 19:02 ` [PATCH bpf-next v8 05/11] bpf: implement BPF_PROG_QUERY for BPF_LSM_CGROUP Stanislav Fomichev
2022-06-04 6:59 ` Martin KaFai Lau
2022-06-04 8:05 ` Martin KaFai Lau
2022-06-06 22:46 ` Stanislav Fomichev
2022-06-07 20:44 ` Martin KaFai Lau
2022-06-01 19:02 ` [PATCH bpf-next v8 06/11] bpf: allow writing to a subset of sock fields from lsm progtype Stanislav Fomichev
2022-06-04 7:18 ` Martin KaFai Lau
2022-06-06 22:46 ` Stanislav Fomichev
2022-06-07 22:17 ` Martin KaFai Lau
2022-06-01 19:02 ` [PATCH bpf-next v8 07/11] libbpf: add lsm_cgoup_sock type Stanislav Fomichev
2022-06-03 21:30 ` Andrii Nakryiko
2022-06-01 19:02 ` [PATCH bpf-next v8 08/11] libbpf: implement bpf_prog_query_opts Stanislav Fomichev
2022-06-03 21:34 ` Andrii Nakryiko
2022-06-03 23:13 ` Stanislav Fomichev
2022-06-01 19:02 ` [PATCH bpf-next v8 09/11] bpftool: implement cgroup tree for BPF_LSM_CGROUP Stanislav Fomichev
2022-06-01 19:02 ` [PATCH bpf-next v8 10/11] selftests/bpf: lsm_cgroup functional test Stanislav Fomichev
2022-06-01 19:02 ` [PATCH bpf-next v8 11/11] selftests/bpf: verify lsm_cgroup struct sock access Stanislav Fomichev
2022-06-03 1:52 ` Martin KaFai Lau [this message]
2022-06-03 1:59 ` Stanislav Fomichev
2022-06-03 5:38 ` Martin KaFai Lau
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