public inbox for netdev@vger.kernel.org 
 help / color / mirror / Atom feed

From: Lukas Wunner <lukas@wunner•de>
To: Oliver Neukum <oneukum@suse•com>,
	"David S. Miller" <davem@davemloft•net>,
	Jakub Kicinski <kuba@kernel•org>, Paolo Abeni <pabeni@redhat•com>,
	Jann Horn <jannh@google•com>,
	Oleksij Rempel <o.rempel@pengutronix•de>,
	Oleksij Rempel <linux@rempel-privat•de>,
	Eric Dumazet <edumazet@google•com>
Cc: netdev@vger•kernel.org, linux-usb@vger•kernel.org,
	Andrew Lunn <andrew@lunn•ch>, Jacky Chou <jackychou@asix•com.tw>,
	Willy Tarreau <w@1wt•eu>, Lino Sanfilippo <LinoSanfilippo@gmx•de>,
	Philipp Rosenberger <p.rosenberger@kunbus•com>,
	Heiner Kallweit <hkallweit1@gmail•com>
Subject: [PATCH net-next v2 0/1] linkwatch use-after-free fix
Date: Sun, 12 Jun 2022 11:07:46 +0200	[thread overview]
Message-ID: <cover.1655024266.git.lukas@wunner.de> (raw)

Discussion on v1 of this patch fizzled out in April without it being applied:

https://lore.kernel.org/netdev/18b3541e5372bc9b9fc733d422f4e698c089077c.1650177997.git.lukas@wunner.de/#r

This is a vulnerability, we can't just ignore it.  Paolo Abeni asked
me to explore whether the issue can be fixed in USB Ethernet drivers
instead of core networking code.  I've done that and presented a patch,
but consider it an inferior approach.

I'm explaining why in the updated commit message of this patch and
I'm rebasing it on net-next.  Otherwise it's the same as v1,  I still
believe that this is the best solution to the problem.

Thanks!

Lukas Wunner (1):
  net: linkwatch: ignore events for unregistered netdevs

 net/core/dev.c        | 17 -----------------
 net/core/dev.h        |  1 -
 net/core/link_watch.c | 10 ++--------
 3 files changed, 2 insertions(+), 26 deletions(-)

-- 
2.35.2

next             reply	other threads:[~2022-06-12  9:08 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-12  9:07 Lukas Wunner [this message]
2022-06-12  9:08 ` [PATCH net-next v2 1/1] net: linkwatch: ignore events for unregistered netdevs Lukas Wunner

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=cover.1655024266.git.lukas@wunner.de \
    --to=lukas@wunner$(echo .)de \
    --cc=LinoSanfilippo@gmx$(echo .)de \
    --cc=andrew@lunn$(echo .)ch \
    --cc=davem@davemloft$(echo .)net \
    --cc=edumazet@google$(echo .)com \
    --cc=hkallweit1@gmail$(echo .)com \
    --cc=jackychou@asix$(echo .)com.tw \
    --cc=jannh@google$(echo .)com \
    --cc=kuba@kernel$(echo .)org \
    --cc=linux-usb@vger$(echo .)kernel.org \
    --cc=linux@rempel-privat$(echo .)de \
    --cc=netdev@vger$(echo .)kernel.org \
    --cc=o.rempel@pengutronix$(echo .)de \
    --cc=oneukum@suse$(echo .)com \
    --cc=p.rosenberger@kunbus$(echo .)com \
    --cc=pabeni@redhat$(echo .)com \
    --cc=w@1wt$(echo .)eu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox