From: Dominique Martinet <asmadeus@codewreck.org>
To: Michael Grzeschik <mgr@kernel.org>
Cc: v9fs@lists.linux.dev, Eric Van Hensbergen <ericvh@kernel.org>,
Latchesar Ionkov <lucho@ionkov.net>,
Christian Schoenebeck <linux_oss@crudebyte.com>,
linux-kernel@vger.kernel.org,
Yuxiang Yang <yangyx22@mails.tsinghua.edu.cn>,
Ao Wang <wangao@seu.edu.cn>, Xuewei Feng <fengxw06@126.com>,
Qi Li <qli01@tsinghua.edu.cn>, Ke Xu <xuke@tsinghua.edu.cn>,
Yizhou Zhao <zhaoyz24@mails.tsinghua.edu.cn>
Subject: Re: [PATCH] net/9p/usbg: Fix use-after-free on usb9pfs_clear_tx
Date: Sun, 13 Sep 2026 17:44:34 +0900 [thread overview]
Message-ID: <aqZichSBFZgqFn8F@codewreck.org> (raw)
In-Reply-To: <20260529081026.77732-1-zhaoyz24@mails.tsinghua.edu.cn>
Hi Michael,
I'm honestly not quite sure what to do with this and others UAF usb9pfs
patches -- you acked the first one I replied to, and the tag match is
obviously correct so I picked these two, but I'd like your opinion on
the rest for two reasons:
- There seem to be plenty of rough edges around usb9pfs, and frankly I
don't consider this a trust boundary (the usecase being developping
embedded devices, you trust the server fully, so whatever happens
in corner cases doesn't matter)
- You had a rework in progress (before leaving Pengutronix, which I can
totally understand you don't have time or want to keep carrying going
forward, but is someone else from Pengutronix taking your place?)
For all I know this is also correct, but I'm not sure slapping a bandaid
is the way to go, so I'd really appreciate if you could have a look at
this[1] and "net/9p/usbg: clear stale request context after abort"[2]
[1] https://lore.kernel.org/r/20260529081026.77732-1-zhaoyz24@mails.tsinghua.edu.cn
[2] https://lore.kernel.org/r/20260802152148.810390-1-marsy12010123@gmail.com
If you tell me to pick them up I will, and if I don't hear back from you
I'll take another look hopefully before the 7.4 deadline, but I honestly
don't have enough time for this so the most likely outcome will be
/dev/null
Thanks (and sorry Yizhou Zhao / Chengfeng Ye)
--
Dominique
prev parent reply other threads:[~2026-09-13 8:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 8:10 Yizhou Zhao
2026-09-13 8:44 ` Dominique Martinet [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=aqZichSBFZgqFn8F@codewreck.org \
--to=asmadeus@codewreck.org \
--cc=ericvh@kernel.org \
--cc=fengxw06@126.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux_oss@crudebyte.com \
--cc=lucho@ionkov.net \
--cc=mgr@kernel.org \
--cc=qli01@tsinghua.edu.cn \
--cc=v9fs@lists.linux.dev \
--cc=wangao@seu.edu.cn \
--cc=xuke@tsinghua.edu.cn \
--cc=yangyx22@mails.tsinghua.edu.cn \
--cc=zhaoyz24@mails.tsinghua.edu.cn \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®