linux-kernel - Re: [PATCH] amba: tegra-ahb: fix device leak on smmu enable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <aQsF_OJF3eaJt7YP@hovoldconsulting.com>
Date: Wed, 5 Nov 2025 09:08:28 +0100
From: Johan Hovold <johan@...nel.org>
To: Russell King <linux@...linux.org.uk>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>
Cc: linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH] amba: tegra-ahb: fix device leak on smmu enable

On Thu, Sep 25, 2025 at 05:00:07PM +0200, Johan Hovold wrote:
> Make sure to drop the reference taken to the ahb platform device when
> looking up its driver data while enabling the smmu.
> 
> Note that holding a reference to a device does not prevent its driver
> data from going away.
> 
> Fixes: 89c788bab1f0 ("ARM: tegra: Add SMMU enabler in AHB")
> Cc: stable@...r.kernel.org	# 3.5
> Signed-off-by: Johan Hovold <johan@...nel.org>
> ---

Can this one be picked up for 6.19?

Johan