Subject: Re: [PATCH bpf-next 1/2] bpf, test_run: Fix user-memory-access vulnerability for LIVE_FRAMES

From: Toke Høiland-Jørgensen <[email-masked]>
Date: Mon, 05 Jan 2026 11:46:50 +0100

KaFai Wan <[email-masked]> writes:

> This fix reverts to the original version and ensures data_hard_start
> correctly points to the xdp_frame structure, eliminating the security
> risk.

This is wrong. We should just be checking the meta_len on input to
account for the size of xdp_frame. I'll send a patch.

-Toke