From: Alison Schofield <alison.schofield@intel.com>
To: Richard Cheng <icheng@nvidia.com>
Cc: <dave@stgolabs.net>, <jic23@kernel.org>, <dave.jiang@intel.com>,
<vishal.l.verma@intel.com>, <djbw@kernel.org>,
<danwilliams@nvidia.com>, <iweiny@kernel.org>,
<ming.li@zohomail.com>, <kobak@nvidia.com>, <kaihengf@nvidia.com>,
<kees@kernel.org>, <newtonl@nvidia.com>, <kristinc@nvidia.com>,
<mochs@nvidia.com>, <linux-cxl@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 3/3] cxl/features: Clamp Get Feature output size to the remaining buffer
Date: Tue, 14 Jul 2026 12:31:13 -0700 [thread overview]
Message-ID: <alaOgUpd1bhlk9HR@aschofie-mobl2.lan> (raw)
In-Reply-To: <20260626104102.53892-4-icheng@nvidia.com>
On Fri, Jun 26, 2026 at 06:41:02PM +0800, Richard Cheng wrote:
> cxl_get_feature() reads a feature in a loop but passes a fixed size_out
> as the output capacity every iteration. On the last partial iteration
> the buffer has less room left, so a device that returns more than asked
> can overflow feat_out.
>
> Use the per-iter size data_to_rd_size, which already tracks the
> remaining room, as the output capacity.
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
next prev parent reply other threads:[~2026-07-14 19:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-26 10:40 [PATCH v3 0/3] cxl/features: Bounds-check the fwctl feature commands Richard Cheng
2026-06-26 10:41 ` [PATCH v3 1/3] cxl/features: Reject Get Feature count larger than the output buffer Richard Cheng
2026-06-26 10:54 ` sashiko-bot
2026-06-30 2:50 ` Richard Cheng
2026-07-14 19:29 ` Alison Schofield
2026-06-26 10:41 ` [PATCH v3 2/3] cxl/features: Reject Set Features output buffer smaller than the header Richard Cheng
2026-06-26 10:56 ` sashiko-bot
2026-06-30 2:51 ` Richard Cheng
2026-07-14 18:05 ` Dave Jiang
2026-07-14 19:30 ` Alison Schofield
2026-06-26 10:41 ` [PATCH v3 3/3] cxl/features: Clamp Get Feature output size to the remaining buffer Richard Cheng
2026-06-26 10:52 ` sashiko-bot
2026-06-30 2:57 ` Richard Cheng
2026-07-14 18:06 ` Dave Jiang
2026-07-14 19:31 ` Alison Schofield [this message]
2026-07-13 7:22 ` [PATCH v3 0/3] cxl/features: Bounds-check the fwctl feature commands Richard Cheng
2026-07-14 21:01 ` Dave Jiang
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=alaOgUpd1bhlk9HR@aschofie-mobl2.lan \
--to=alison.schofield@intel.com \
--cc=danwilliams@nvidia.com \
--cc=dave.jiang@intel.com \
--cc=dave@stgolabs.net \
--cc=djbw@kernel.org \
--cc=icheng@nvidia.com \
--cc=iweiny@kernel.org \
--cc=jic23@kernel.org \
--cc=kaihengf@nvidia.com \
--cc=kees@kernel.org \
--cc=kobak@nvidia.com \
--cc=kristinc@nvidia.com \
--cc=linux-cxl@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ming.li@zohomail.com \
--cc=mochs@nvidia.com \
--cc=newtonl@nvidia.com \
--cc=vishal.l.verma@intel.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.