Re: [PATCH net v3] tcp: clear sock_ops cb flags before force-closing a child socket

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Thu, 11 Jun 2026 09:29:18 +0000 you wrote:
> A child socket inherits the listener's bpf_sock_ops_cb_flags via
> sk_clone_lock(). If its setup fails in tcp_v4_syn_recv_sock() /
> tcp_v6_syn_recv_sock(), the child is freed through put_and_exit, where
> inet_csk_prepare_forced_close() drops the socket lock and tcp_done() runs
> without it.
> 
> If BPF_SOCK_OPS_STATE_CB_FLAG was inherited, tcp_done() -> tcp_set_state()
> calls tcp_call_bpf(), which expects the lock and trips sock_owned_by_me():
> 
> [...]

Here is the summary with links:
  - [net,v3] tcp: clear sock_ops cb flags before force-closing a child socket
    https://git.kernel.org/netdev/net/c/990348e5bb45

You are awesome, thank you!
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