From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-can@vger.kernel.org
Subject: Re: [can-next v2] can: proc: remove pointers from CAN specific proc output
Date: Thu, 20 Aug 2026 16:27:34 +0200 [thread overview]
Message-ID: <20260820142734.NuRnRMV9@linutronix.de> (raw)
In-Reply-To: <20260815103400.117175-1-socketcan@hartkopp.net>
On 2026-08-15 12:34:00 [+0200], Oliver Hartkopp wrote:
> The proc content in /proc/net/can/ and /proc/net/can-bcm/ is intended to
> check the internal filter lists (af_can, can_raw) and the efficiency and
> functionality of can_bcm jobs. While it was ok to leak kernel internal
> addresses at time of writing the times have changed and multiple attempts
> have been taken to hash or remove such now sensible data.
>
> This patch removes the disclosure of pointers and instead provides the
> function names and sock inode numbers when available. As there's no known
> tooling around the CAN specific proc output breaking the ABI with this
> rework creates no issue.
>
> Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Sebastian
next prev parent reply other threads:[~2026-08-20 14:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-15 10:34 [can-next v2] can: proc: remove pointers from CAN specific proc output Oliver Hartkopp
2026-08-20 14:27 ` Sebastian Andrzej Siewior [this message]
2026-08-26 11:28 ` Marc Kleine-Budde
2026-08-26 19:25 ` Oliver Hartkopp
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