Re: [PATCH bpf] bpf: Fix out-of-bounds read of rtt_min in sock_ops

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:

On Thu,  3 Sep 2026 18:09:20 +0800 you wrote:
> A sockops prog reading skops->rtt_min never checks the sk type: on the
> tcp_conn_request() path sock_ops->sk is a request_sock (non-full), and the
> ctx rewrite casts it to a tcp_sock (full) and reads rtt_min past the end of
> the request_sock, returning dirty adjacent memory.
> 
> 	SEC("sockops")
> 	int prog(struct bpf_sock_ops *skops)
> 	{
> 		switch (skops->op) {
> 		case BPF_SOCK_OPS_RWND_INIT:
> 			leak = skops->rtt_min;   /* reads the request_sock OOB */
> 		...
> 		}
> 	}
> 
> [...]

Here is the summary with links:
  - [bpf] bpf: Fix out-of-bounds read of rtt_min in sock_ops
    https://git.kernel.org/bpf/bpf/c/75f8cf22463d

You are awesome, thank you!
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