Hello:
This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:
On Fri, 31 Jan 2025 19:01:42 -0800 you wrote:
> Yan Zhai reported a BPF prog could trigger a null-ptr-deref [0]
> in trace_kfree_skb if the prog does not check if rx_sk is NULL.
>
> Commit c53795d48ee8 ("net: add rx_sk to trace_kfree_skb") added
> rx_sk to trace_kfree_skb, but rx_sk is optional and could be NULL.
>
> Let's add kfree_skb to raw_tp_null_args[] to let the BPF verifier
> validate such a prog and prevent the issue.
>
> [...]
Here is the summary with links:
- [v2,bpf] net: Add rx_skb of kfree_skb to raw_tp_null_args[].
https://git.kernel.org/bpf/bpf/c/fc610c8c586c
You are awesome, thank you!
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