From: Jakub Kicinski <kuba@kernel.org>
To: Yiming Qian <yimingqian591@gmail.com>
Cc: security@kernel.org, John Fastabend <john.fastabend@gmail.com>,
Jakub Sitnicki <jakub@cloudflare.com>,
Sabrina Dubroca <sd@queasysnail.net>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
keenanat2000@gmail.com, netdev@vger.kernel.org,
bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH net v2] net: skmsg: preserve sg.copy across SG transforms
Date: Sat, 13 Jun 2026 16:57:49 -0700 [thread overview]
Message-ID: <20260613165749.32fbdae6@kernel.org> (raw)
In-Reply-To: <20260610062137.49075-1-yimingqian591@gmail.com>
On Wed, 10 Jun 2026 06:21:36 +0000 Yiming Qian wrote:
> The sk_msg sg.copy bitmap is part of the scatterlist entry ownership
> state. A set bit tells sk_msg_compute_data_pointers() not to expose the
> entry through writable BPF ctx->data. This protects entries backed by
> pages that are not private to the sk_msg, such as splice-backed file
> page-cache pages.
Note to other maintainers: please don't commit this yet.
I will send a de-feature for TLS+sockmap to net-next,
if this is in the tree the CI won't ingest it (once CI
goes thru we can merge and fix the conflict).
prev parent reply other threads:[~2026-06-13 23:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-10 6:21 [PATCH net v2] net: skmsg: preserve sg.copy across SG transforms Yiming Qian
2026-06-11 6:22 ` sashiko-bot
2026-06-13 23:57 ` Jakub Kicinski [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260613165749.32fbdae6@kernel.org \
--to=kuba@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=horms@kernel.org \
--cc=jakub@cloudflare.com \
--cc=john.fastabend@gmail.com \
--cc=keenanat2000@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=sd@queasysnail.net \
--cc=security@kernel.org \
--cc=stable@vger.kernel.org \
--cc=yimingqian591@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.