netdev - Re: [PATCH bpf-next v4 2/8] bpf: Enable read/write access to skb metadata through a dynptr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <e3d50326c3dca79f5f9827b6b76385a880a92e0b.camel@gmail.com>
Date: Wed, 23 Jul 2025 14:58:38 -0700
From: Eduard Zingerman <eddyz87@...il.com>
To: Jakub Sitnicki <jakub@...udflare.com>, bpf@...r.kernel.org
Cc: Alexei Starovoitov <ast@...nel.org>, Andrii Nakryiko
 <andrii@...nel.org>,  Arthur Fabre <arthur@...hurfabre.com>, Daniel
 Borkmann <daniel@...earbox.net>, Eric Dumazet	 <edumazet@...gle.com>, Jakub
 Kicinski <kuba@...nel.org>, Jesper Dangaard Brouer	 <hawk@...nel.org>,
 Jesse Brandeburg <jbrandeburg@...udflare.com>, Joanne Koong	
 <joannelkoong@...il.com>, Lorenzo Bianconi <lorenzo@...nel.org>, Martin
 KaFai Lau <martin.lau@...ux.dev>, Toke
 Høiland-Jørgensen <thoiland@...hat.com>,  Yan Zhai
 <yan@...udflare.com>, kernel-team@...udflare.com, netdev@...r.kernel.org,
 Stanislav Fomichev	 <sdf@...ichev.me>
Subject: Re: [PATCH bpf-next v4 2/8] bpf: Enable read/write access to skb
 metadata through a dynptr

On Wed, 2025-07-23 at 19:36 +0200, Jakub Sitnicki wrote:
> Now that we can create a dynptr to skb metadata, make reads to the metadata
> area possible with bpf_dynptr_read() or through a bpf_dynptr_slice(), and
> make writes to the metadata area possible with bpf_dynptr_write() or
> through a bpf_dynptr_slice_rdwr().
> 
> Signed-off-by: Jakub Sitnicki <jakub@...udflare.com>
> ---

Acked-by: Eduard Zingerman <eddyz87@...il.com>

[...]