From: KaFai Wan <kafai.wan@linux.dev>
To: edumazet@google.com, ncardwell@google.com, kuniyu@google.com,
davem@davemloft.net, dsahern@kernel.org, kuba@kernel.org,
pabeni@redhat.com, horms@kernel.org, ast@kernel.org,
daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev,
eddyz87@gmail.com, memxor@gmail.com, song@kernel.org,
yonghong.song@linux.dev, jolsa@kernel.org, shuah@kernel.org,
kafai.wan@linux.dev, sdf@fomichev.me, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: [PATCH bpf-next 0/2] bpf: tcp: Reject TCP_NODELAY from BPF hdr opt callbacks
Date: Tue, 14 Apr 2026 19:23:08 +0800 [thread overview]
Message-ID: <20260414112310.1285783-1-kafai.wan@linux.dev> (raw)
This small patchset is about avoid infinite recursion in bpf_skops_hdr_opt_len()
via TCP_NODELAY setsockopt.
---
KaFai Wan (2):
bpf: tcp: Reject TCP_NODELAY from BPF hdr opt callbacks
selftests/bpf: Cover TCP_NODELAY in hdr opt callback
net/ipv4/tcp.c | 5 ++-
.../bpf/prog_tests/tcp_hdr_options.c | 34 +++++++++++++++++++
.../bpf/progs/test_misc_tcp_hdr_options.c | 18 ++++++++++
3 files changed, 56 insertions(+), 1 deletion(-)
--
2.43.0
next reply other threads:[~2026-04-14 11:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-14 11:23 KaFai Wan [this message]
2026-04-14 11:23 ` [PATCH bpf-next 1/2] bpf: tcp: Reject TCP_NODELAY from BPF hdr opt callbacks KaFai Wan
2026-04-14 13:56 ` KaFai Wan
2026-04-15 17:31 ` Martin KaFai Lau
2026-04-14 11:23 ` [PATCH bpf-next 2/2] selftests/bpf: Cover TCP_NODELAY in hdr opt callback KaFai Wan
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