Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:
On Fri, 20 Sep 2024 14:56:24 +0200 you wrote:
> The bpf_redirect_info is shared between the SKB and XDP redirect paths,
> and the two paths use the same numeric flag values in the ri->flags
> field (specifically, BPF_F_BROADCAST == BPF_F_NEXTHOP). This means that
> if skb bpf_redirect_neigh() is used with a non-NULL params argument and,
> subsequently, an XDP redirect is performed using the same
> bpf_redirect_info struct, the XDP path will get confused and end up
> crashing, which syzbot managed to trigger.
>
> [...]
Here is the summary with links:
- [bpf-next] bpf: Make sure internal and UAPI bpf_redirect flags don't overlap
https://git.kernel.org/bpf/bpf/c/09d88791c7cd
You are awesome, thank you!
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