From: Jakub Kicinski <kuba@kernel.org>
To: Jakub Sitnicki <jakub@cloudflare.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>,
"David S. Miller" <davem@davemloft.net>,
David Ahern <dsahern@kernel.org>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Martin KaFai Lau <martin.lau@kernel.org>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
kernel-team@cloudflare.com
Subject: Re: [PATCH net v2] net: Clear skb metadata in LWT BPF xmit
Date: Mon, 18 May 2026 16:18:27 -0700 [thread overview]
Message-ID: <20260518161827.2ac4766f@kernel.org> (raw)
In-Reply-To: <20260514-bpf-lwt-drop-skb-metadata-v2-1-458664edc2b5@cloudflare.com>
On Thu, 14 May 2026 12:47:09 +0200 Jakub Sitnicki wrote:
> + /* LWT BPF programs cannot access skb metadata but can corrupt
> + * it with helpers that operate on skb headroom. Drop it.
> + */
> + skb_metadata_clear(skb);
Sashiko has a point, right? Is there something in LWT which would
prevent us from working on clones?
next prev parent reply other threads:[~2026-05-18 23:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-14 10:47 [PATCH net v2] net: Clear skb metadata in LWT BPF xmit Jakub Sitnicki
2026-05-15 0:39 ` Chris Arges
2026-05-18 10:00 ` Daniel Borkmann
2026-05-18 23:18 ` Jakub Kicinski [this message]
2026-05-19 9:47 ` Jakub Sitnicki
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