From: Michal Luczaj <mhal@rbox.co>
To: 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>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
Jiri Olsa <jolsa@kernel.org>,
Emil Tsalapatis <emil@etsalapatis.com>,
Ihor Solodrai <ihor.solodrai@linux.dev>,
Shuah Khan <shuah@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Lorenz Bauer <lmb@cloudflare.com>,
Eric Dumazet <edumazet@kernel.org>,
Kuniyuki Iwashima <kuniyu@google.com>,
Paolo Abeni <pabeni@redhat.com>,
Willem de Bruijn <willemb@google.com>,
Jakub Sitnicki <jakub@cloudflare.com>,
Jiayuan Chen <jiayuan.chen@linux.dev>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Simon Horman <horms@kernel.org>
Cc: bpf@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org, Michal Luczaj <mhal@rbox.co>,
netdev@vger.kernel.org
Subject: [PATCH RFC v2 4/4] bpf: Mark bpf_iter__sockmap::sk as PTR_TRUSTED
Date: Mon, 02 Nov 2026 02:16:01 +0100 [thread overview]
Message-ID: <20261102-sockmap-update-limit-iter-v2-4-e96a63c43b39@rbox.co> (raw)
In-Reply-To: <20261102-sockmap-update-limit-iter-v2-0-e96a63c43b39@rbox.co>
In preparation for plain-PTR_TO_BTF_ID removal: allow calling bpf helpers
with sk provided by iter/sockmap.
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Link: https://msgid.link/DM92JCFA4X4U.30MTDH0KCPTJ@gmail.com
Signed-off-by: Michal Luczaj <mhal@rbox.co>
---
net/core/sock_map.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 057e2f3c0265..2a2a07372818 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -1989,7 +1989,7 @@ static struct bpf_iter_reg sock_map_iter_reg = {
{ offsetof(struct bpf_iter__sockmap, key),
PTR_TO_BUF | PTR_MAYBE_NULL | MEM_RDONLY },
{ offsetof(struct bpf_iter__sockmap, sk),
- PTR_TO_BTF_ID_OR_NULL },
+ PTR_TO_BTF_ID_OR_NULL | PTR_TRUSTED },
},
};
--
2.56.0
next prev parent reply other threads:[~2026-11-02 1:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 1:15 [PATCH RFC v2 0/4] bpf, sockmap: Restrict iter-context sockmap updates to sockmap iterators Michal Luczaj
2026-11-02 1:15 ` [PATCH RFC v2 1/4] selftests/bpf: Remove sockmap update from bpf_iter_unix Michal Luczaj
2026-11-02 1:15 ` [PATCH RFC v2 2/4] bpf, sockmap: Restrict iter-context sockmap updates to iter/sockmap Michal Luczaj
2026-11-02 1:54 ` bot+bpf-ci
2026-11-02 1:16 ` [PATCH RFC v2 3/4] selftests/bpf: Add negative test for sockmap update from non-sockmap iter Michal Luczaj
2026-11-02 1:16 ` Michal Luczaj [this message]
2026-11-02 8:54 ` [PATCH RFC v2 0/4] bpf, sockmap: Restrict iter-context sockmap updates to sockmap iterators Michal Luczaj
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