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
next prev parent reply other threads:[~2026-09-13 8:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 8:10 [PATCH] net/9p/usbg: Fix use-after-free on usb9pfs_clear_tx Yizhou Zhao
2026-09-13 8:44 ` Dominique Martinet [this message]
2026-09-15 6:54 ` Michael Grzeschik
2026-09-15 7:09 ` Dominique Martinet
2026-09-15 6:51 ` Michael Grzeschik
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 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.