Subject tcp: opportunistic loopback splice for BPF-paired sockets
Author xiyou.wangcong@gmail.com
Date 2026-06-12 01:14:48 +0000 UTC
Version
Cc bpf@vger.kernel.org cwang@multikernel.io hemanthmalla@gmail.com jakub@cloudflare.com jiayuan.chen@linux.dev john.fastabend@gmail.com netdev@vger.kernel.org xiyou.wangcong@gmail.com zijianzhang@bytedance.com
Patches (5)
Name Content [All]
[RFC PATCH bpf-next 1/5] tcp_bpf: add bpf_sock_splice_pair kfunc for opportunistic loopback splice [Body]
[RFC PATCH bpf-next 2/5] tcp_bpf: busy-poll the splice ring before parking the receiver [Body]
[RFC PATCH bpf-next 3/5] selftests/bpf: add tcp_splice basic round-trip test [Body]
[RFC PATCH bpf-next 4/5] bpf: allow SO_BUSY_POLL in bpf_setsockopt() [Body]
[RFC PATCH bpf-next 5/5] selftests/bpf: set SO_BUSY_POLL from the tcp_splice sockops prog [Body]
Session 2026-06-12
ID (for dev) 686d79b8-bf7e-4770-8eee-94f1c9c76180
Status finished
Triaged OK [Log]
Execution Log [Link]
Test Base Patched Verdict
[KASAN] Build Base 30dee2c176e7954f63d1fa3e52d172f30beb9bfb [Config] passed [Log]
[KASAN] Boot test: Base 30dee2c176e7954f63d1fa3e52d172f30beb9bfb [Config] passed [Log]
[KASAN] Build Patched 30dee2c176e7954f63d1fa3e52d172f30beb9bfb [Config] [patched] passed [Log]
[KASAN] Boot test: Patched 30dee2c176e7954f63d1fa3e52d172f30beb9bfb [Config] [patched] passed [Log]
[KASAN] Fuzz 30dee2c176e7954f63d1fa3e52d172f30beb9bfb [Config] 30dee2c176e7954f63d1fa3e52d172f30beb9bfb [Config] [patched] passed [Log] [Artifacts]
WARNING: suspicious RCU usage in tcp_bpf_recvmsg [Log] [Syz Repro]
WARNING: suspicious RCU usage in tcp_bpf_splice_sendmsg [Log] [Syz Repro]